Games like Half-Life: Source on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like Half-Life: Source are available at the bottom of the page.

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Call of Duty® (2003)

Call of Duty® delivers the gritty realism and cinematic intensity of World War II's epic battlefield moments like never before.

Similarity 59%
Price -50% 9.99€
Rating 9.2
Release 13 Oct 2006

Metro Exodus

Flee the shattered ruins of the Moscow Metro and embark on an epic, continent-spanning journey across the post-apocalyptic Russian wilderness. Explore vast, non-linear levels, lose yourself in an immersive, sandbox survival experience, and follow a thrilling story-line that spans an entire year in the greatest Metro adventure yet.

Similarity 59%
Price -75% 7.49€
Rating 8.9
Release 14 Feb 2020

Tom Clancy's Rainbow Six® Vegas 2

Tom Clancy's Rainbow Six® Vegas 2 - the sequel to the award-winning next-generation first-person shooter - returns to Sin City. Tom Clancy's Rainbow Six Vegas 2 is your last chance to rescue America's sexiest city from an escalating terrorist siege that will force you into heart-pounding action from beginning to end.

Similarity 59%
Price 9.99€
Rating 8.2
Release 16 Apr 2008

Counter-Strike: Condition Zero

With its extensive Tour of Duty campaign, a near-limitless number of skirmish modes, updates and new content for Counter-Strike's award-winning multiplayer game play, plus over 12 bonus single player missions, Counter-Strike: Condition Zero is a tremendous offering of single and multiplayer content.

Similarity 59%
Price 8.19€
Rating 8.9
Release 01 Mar 2004

Resident Evil 2

A deadly virus engulfs the residents of Raccoon City in September of 1998, plunging the city into chaos as flesh eating zombies roam the streets for survivors. An unparalleled adrenaline rush, gripping storyline, and unimaginable horrors await you. Witness the return of Resident Evil 2.

Similarity 58%
Price 39.99€
Rating 9.6
Release 24 Jan 2019

Halo Wars: Definitive Edition

Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.

Similarity 58%
Price 19.99€
Rating 8.8
Release 20 Apr 2017

The Lab

Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

Similarity 58%
Price Free to play
Rating 9.2
Release 05 Apr 2016

Syndrome

Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.

Similarity 58%
Price 19.99€
Rating 6.2
Release 06 Oct 2016

Outcast 1.1

Outcast 1.1 is an enhanced version of the critically acclaimed action-adventure game developed in 1999 by Appeal for the PC.

Similarity 58%
Price 5.29€
Rating 8.3
Release 18 Dec 2014

Nosferatu: The Wrath of Malachi

It is a misty evening in the year of our lord 1912. The Pattersons, a poor but proud aristocratic family of the British nobility, and some of their closest friends, arrive at the castle Malachi residence of a wealthy Romanian Count.

Similarity 58%
Price -61% 1.18€
Rating 8.4
Release 06 Mar 2014

Borderlands: The Pre-Sequel

Launch into the Borderlands universe and shoot ‘n’ loot your way through a brand new adventure that rockets you onto Pandora’s moon in Borderlands: The Pre-Sequel!

Similarity 58%
Price -93% 2.93€
Rating 8.0
Release 16 Oct 2014

Sanctum 2

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Similarity 58%
Price 14.79€
Rating 8.8
Release 15 May 2013

NecroVisioN: Lost Company

NecroVisioN: Lost Company is the prequel to original horror FPS shooter, taking place before the NecroVisioN story begins. It contains a bunch of unique levels, characters, weapons and gameplay elements as well as new main hero that presents the original game story from opposite perspective.

Similarity 58%
Price 6.99€
Rating 6.8
Release 19 Feb 2010

BRINK

You decide the combat role you want to assume in the world of Brink as you fight to save yourself and mankind’s last refuge!

Similarity 58%
Price Free to play
Rating 6.2
Release 09 May 2011

Left 4 Dead

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.

Similarity 58%
Price 9.75€
Rating 9.5
Release 17 Nov 2008

Selaco

Selaco is a brand new original shooter inspired by classics, featuring thrilling action set pieces, destructibility, smart enemies and a fleshed out story taking place within an immersive game world.

Similarity 58%
Price 24.50€
Rating 8.8
Release 31 May 2024

High On Life

HIGH ON KNIFE DLC OUT NOW!! - Humanity is being threatened by an alien cartel who wants to use them as drugs. It’s up to you to rescue and partner with charismatic, talking guns, take down Garmantuous and his gang, and save the world!

Similarity 58%
Price -85% 5.54€
Rating 8.7
Release 13 Dec 2022

The Citadel

The Citadel is a brutal first person shooter, and a love letter to classic games such as Marathon, Doom and Wolfenstein 3d. Descend into the depths of a dark citadel, and fight through 6 Episodes and 30 levels of action packed with 6 challenging bosses. Go forth, Martyr.

Similarity 58%
Price 12.49€
Rating 8.8
Release 05 Aug 2020

ZOMBI

London is falling. Are you prepared? The Last Blight is upon us. It was foretold. For the second time in history, a great plague has shrouded London in a fog of death. Big Ben tolls as thousands of unprepared die, or worse, are infected by a sickness more gruesome than death.

Similarity 58%
Price 19.99€
Rating 6.3
Release 18 Aug 2015

Thief™ II: The Metal Age

The ultimate thief is back! Tread softly as you make your way through 15 new complex, non-linear levels full of loot to steal and guards to outsmart. Improved enemy AI, new gadgets and a riveting story will draw you into the world of Thief™ II: The Metal Age, a place of powerful new technologies, fanatical religions and corruption.

Similarity 58%
Price 6.99€
Rating 9.0
Release 22 May 2012

Natural Selection 2

A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Similarity 58%
Price 4.99€
Rating 8.3
Release 30 Oct 2012

Estranged: The Departure

Estranged: The Departure follows the story of a fisherman, stranded on a mysterious island during a violent storm. Little does he know his adventure has just begun, and the island is home to more than it first seems.

Similarity 57%
Price 4.99€
Rating 8.3
Release 22 May 2020

The Outer Worlds

The Outer Worlds is an award-winning single-player RPG from Obsidian Entertainment and Private Division. As you explore a space colony, the character you decide to become will determine how this player-driven story unfolds. In the colony's corporate equation, you are the unplanned variable.

Similarity 57%
Price 29.99€
Rating 8.2
Release 23 Oct 2020

Resident Evil

The game that defined the survival-horror genre is back! Check out the remastered HD version of Resident Evil.

Similarity 57%
Price 19.99€
Rating 9.0
Release 19 Jan 2015

Most played games like Half-Life: Source on Steam

Take a look at the top games like Half-Life: Source that are currently attracting the largest player bases on the Steam platform, as of April 19th 2025.

1. Red Dead Redemption 2

Similarity 57% Winner of over 175 Game of the Year Awards and recipient of over 250 perfect scores, RDR2 is the epic tale of outlaw Arthur Morgan and the infamous Van der Linde gang, on the run across America at the dawn of the modern age. Also includes access to the shared living world of Red Dead Online. Red Dead Redemption 2 is a open world, story rich and western game developed and published by Rockstar Games. Released on December 05th 2019 has received 709,021 reviews of which 653,299 were positive and 55,722 were negative resulting in an impressive rating of 9.1 out of 10. The game has hit the top spot as the #1 most played game like Half-Life: Source, thanks to its 35,189 peak concurrent players over the last day.
9.1
653,299
55,722

35,189
players

2. Left 4 Dead 2

Similarity 55% Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns. Left 4 Dead 2 is a zombies, co-op and fps game developed and published by Valve. Released on November 16th 2009 has received 952,732 reviews of which 929,269 were positive and 23,463 were negative resulting in an impressive rating of 9.7 out of 10. While seeing 28,692 players online at once in the last 24 hours, this game is currently ranked #2 among games like Half-Life: Source based on player count.
9.7
929,269
23,463

28,692
players

3. Cyberpunk 2077

Similarity 55% Cyberpunk 2077 is an open-world, action-adventure RPG set in the dark future of Night City — a dangerous megalopolis obsessed with power, glamor, and ceaseless body modification. Cyberpunk 2077 is a cyberpunk and open world game developed and published by CD PROJEKT RED. Released on December 09th 2020 has received 833,276 reviews of which 701,353 were positive and 131,923 were negative resulting in a rating of 8.4 out of 10. While seeing 23,430 players online at once in the last 24 hours, this game is currently ranked #3 among games like Half-Life: Source based on player count.
8.4
701,353
131,923

23,430
players

4. Fallout 4

Similarity 62% Bethesda Game Studios, the award-winning creators of Fallout 3 and The Elder Scrolls V: Skyrim, welcome you to the world of Fallout 4 – their most ambitious game ever, and the next generation of open-world gaming. Fallout 4 is a open world, post-apocalyptic and singleplayer game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on November 09th 2015 has received 389,914 reviews of which 323,883 were positive and 66,031 were negative resulting in a rating of 8.2 out of 10. With 15,701 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Half-Life: Source.
8.2
323,883
66,031

15,701
players

5. Unturned

Similarity 55% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 553,929 reviews of which 505,358 were positive and 48,571 were negative resulting in an impressive rating of 9.1 out of 10. With 15,006 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Half-Life: Source.
9.1
505,358
48,571

15,006
players

6. Metro 2033 Redux

Similarity 70% In 2013 the world was devastated by an apocalyptic event, annihilating almost all mankind and turning the Earth's surface into a poisonous wasteland. A handful of survivors took refuge in the depths of the Moscow underground, and human civilization entered a new Dark Age. The year is 2033. Metro 2033 Redux is a post-apocalyptic, fps and atmospheric game developed by 4A Games and published by Deep Silver. Released on August 27th 2014 has received 96,266 reviews of which 87,371 were positive and 8,895 were negative resulting in a rating of 9.0 out of 10. With 9,746 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Half-Life: Source.
9.0
87,371
8,895

9,746
players

7. Fallout: New Vegas

Similarity 61% Welcome to Vegas. New Vegas. Enjoy your stay! Fallout: New Vegas is a open world, rpg and post-apocalyptic game developed by Obsidian Entertainment and published by Bethesda Softworks. Released on October 21st 2010 has received 225,222 reviews of which 216,413 were positive and 8,809 were negative resulting in an impressive rating of 9.5 out of 10. With 5,610 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Half-Life: Source.
9.5
216,413
8,809

5,610
players

8. Call of Duty®: Black Ops III

Similarity 66% Call of Duty®: Black Ops III Zombies Chronicles Edition includes the full base game plus the Zombies Chronicles content expansion. Call of Duty®: Black Ops III is a multiplayer, zombies and fps game developed by Treyarch and Aspyr (Mac) and published by Aspyr (Mac) and Activision. Released on November 05th 2015 has received 213,168 reviews of which 179,563 were positive and 33,605 were negative resulting in a rating of 8.3 out of 10. With 5,293 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Half-Life: Source.
8.3
179,563
33,605

5,293
players

9. Halo: The Master Chief Collection

Similarity 81% The Master Chief’s iconic journey includes six games, built for PC and collected in a single integrated experience. Whether you’re a long-time fan or meeting Spartan 117 for the first time, The Master Chief Collection is the definitive Halo gaming experience. Halo: The Master Chief Collection is a great soundtrack, fps and classic game developed by 343 Industries, Splash Damage, Ruffian Games, Bungie and Saber Interactive and published by Xbox Game Studios. Released on December 03rd 2019 has received 239,857 reviews of which 221,654 were positive and 18,203 were negative resulting in an impressive rating of 9.1 out of 10. With 4,535 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Half-Life: Source.
9.1
221,654
18,203

4,535
players

10. S.T.A.L.K.E.R. 2: Heart of Chornobyl

Similarity 56% Discover the vast Chornobyl Exclusion Zone full of dangerous enemies, deadly anomalies and powerful artifacts. Unveil your own epic story as you make your way to the Heart of Chornobyl. Make your choices wisely, as they will determine your fate in the end. S.T.A.L.K.E.R. 2: Heart of Chornobyl is a open world, fps and post-apocalyptic game developed by GSC Game World and published by GSC Game World (worldwide), SEGA (Japan) and 4divinity (China and South East Asia). Released on November 20th 2024 has received 110,405 reviews of which 89,324 were positive and 21,081 were negative resulting in a rating of 8 out of 10. With 3,929 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Half-Life: Source.
8
89,324
21,081

3,929
players

Best deals on games like Half-Life: Source on Steam

Discover fantastic savings with the best discounts on a variety of games like Half-Life: Source available on Steam right now, updated on April 19th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Half-Life: Source.

1. My Friendly Neighborhood

Similarity 54% Something scary is happening with everyone's favorite Saturday morning puppet show, The Friendly Neighborhood! Play as Gordon, a repairman sent to get to the bottom of this disturbing dilemma. Fend off puppets and solve puzzles in this survival horror adventure. My Friendly Neighborhood is a singleplayer, survival horror and funny game developed by John Szymanski and Evan Szymanski and published by DreadXP. Released on July 18th 2023 has received 2,716 reviews of which 2,597 were positive and 119 were negative resulting in an impressive rating of 9.1 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Half-Life: Source.
9.1
2,597
119

-95% 31.20€ 1.56€

2. Prodeus

Similarity 65% Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware. Prodeus is a boomer shooter, fps and retro game developed by Bounding Box Software Inc. and published by Humble Games. Released on September 23rd 2022 has received 7,436 reviews of which 6,913 were positive and 523 were negative resulting in an impressive rating of 9 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in games like Half-Life: Source.
9
6,913
523

-95% 25.00€ 1.25€

3. INDUSTRIA

Similarity 62% Embark on a gripping journey in INDUSTRIA, an atmospheric FPS set in Cold War-era East Berlin. Unravel the secrets of a mysterious parallel dimension while searching for a missing colleague. Explore a haunting reality where the truth awaits. Discover the dark past that lies beyond. INDUSTRIA is a fps, action and sci-fi game developed by Bleakmill and published by Headup. Released on September 30th 2021 has received 3,188 reviews of which 2,265 were positive and 923 were negative resulting in a rating of 6.9 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in games like Half-Life: Source.
6.9
2,265
923

-95% 20.00€ 1.00€

4. Homeworld Remastered Collection

Similarity 54% Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation. Homeworld Remastered Collection is a space, strategy and rts game developed by Gearbox Software and Aspyr (Mac) and published by Aspyr (Mac) and Gearbox Publishing. Released on February 25th 2015 has received 13,513 reviews of which 11,942 were positive and 1,571 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 94% discount, this title has earned the #4 position in the best deals for games like Half-Life: Source.
8.6
11,942
1,571

-94% 33.33€ 2.00€

5. Shadow Warrior

Similarity 62% Shadow Warrior is a bold reimagining of the classic 3D Realms’ shooter from independent developer Flying Wild Hog (Hard Reset) starring the legendary and quick-witted warrior Lo Wang. Shadow Warrior is a action, fps and swordplay game developed by Flying Wild Hog and published by Devolver Digital. Released on September 26th 2013 has received 26,069 reviews of which 24,000 were positive and 2,069 were negative resulting in an impressive rating of 9.0 out of 10. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for games like Half-Life: Source.
9.0
24,000
2,069

-93% 28.00€ 1.96€

6. Borderlands: The Pre-Sequel

Similarity 58% Launch into the Borderlands universe and shoot ‘n’ loot your way through a brand new adventure that rockets you onto Pandora’s moon in Borderlands: The Pre-Sequel! Borderlands: The Pre-Sequel is a looter shooter, co-op and fps game developed by 2K Australia, Gearbox Software and Aspyr (Linux) and published by Aspyr (Linux) and 2K. Released on October 16th 2014 has received 41,144 reviews of which 33,531 were positive and 7,613 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for games like Half-Life: Source.
8.0
33,531
7,613

-93% 41.86€ 2.93€

7. F.E.A.R. 3

Similarity 70% F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline. F.E.A.R. 3 is a fps, horror and co-op game developed by Day 1 Studios and published by Warner Bros. Interactive Entertainment. Released on June 21st 2011 has received 12,621 reviews of which 8,996 were positive and 3,625 were negative resulting in a rating of 7 out of 10. Currently offered at a significant 93% discount, this title has earned the #7 position in the best deals for games like Half-Life: Source.
7
8,996
3,625

-93% 19.71€ 1.38€

8. Marvel's Guardians of the Galaxy

Similarity 54% Fire up a wild ride across the cosmos with a fresh take on Marvel’s Guardians of the Galaxy. In this action-adventure game, you are Star-Lord leading the unpredictable Guardians from one explosion of chaos to the next. You got this. Probably. Marvel's Guardians of the Galaxy is a singleplayer, story rich and action game developed by Eidos-Montréal and published by Eidos Interactive Corp.. Released on October 26th 2021 has received 38,562 reviews of which 36,313 were positive and 2,249 were negative resulting in an impressive rating of 9.2 out of 10. Currently offered at a significant 92% discount, this title has earned the #8 position in the best deals for games like Half-Life: Source.
9.2
36,313
2,249

-92% 62.38€ 4.99€

9. Metro 2033 Redux

Similarity 70% In 2013 the world was devastated by an apocalyptic event, annihilating almost all mankind and turning the Earth's surface into a poisonous wasteland. A handful of survivors took refuge in the depths of the Moscow underground, and human civilization entered a new Dark Age. The year is 2033. Metro 2033 Redux is a post-apocalyptic, fps and atmospheric game developed by 4A Games and published by Deep Silver. Released on August 27th 2014 has received 96,266 reviews of which 87,371 were positive and 8,895 were negative resulting in a rating of 9.0 out of 10. Currently offered at a significant 92% discount, this title has earned the #9 position in the best deals for games like Half-Life: Source.
9.0
87,371
8,895

-92% 18.75€ 1.50€

10. Metro: Last Light Redux

Similarity 69% It is the year 2034. Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within. Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above. Metro: Last Light Redux is a post-apocalyptic, fps and atmospheric game developed by 4A Games and published by Deep Silver. Released on August 27th 2014 has received 68,992 reviews of which 62,486 were positive and 6,506 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 92% discount, this title has earned the #10 position in the best deals for games like Half-Life: Source.
8.9
62,486
6,506

-92% 19.75€ 1.58€

Free games like Half-Life: Source on Steam

Check out this fantastic list of free-to-play games like Half-Life: Source you can enjoy on Steam right now, updated on April 19th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Half-Life: Source.

1. Unturned

Similarity 55% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 553,929 reviews of which 505,358 were positive and 48,571 were negative resulting in an impressive rating of 9.1 out of 10. With 15,006 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Half-Life: Source.
9.1
505,358
48,571

15,006
players

2. Halo Infinite

Similarity 69% From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience. Halo Infinite is a free to play, fps and multiplayer game developed by 343 Industries and published by Xbox Game Studios. Released on November 15th 2021 has received 176,290 reviews of which 123,035 were positive and 53,255 were negative resulting in a rating of 6.9 out of 10. Thanks to its free to play tag and a daily player base of 2,508, this game has secured the #2 spot in the ranking of free games like Half-Life: Source.
6.9
123,035
53,255

2,508
players

3. Cry of Fear

Similarity 57% Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness. Cry of Fear is a horror, free to play and multiplayer game developed and published by Team Psykskallar. Released on April 25th 2013 has received 73,301 reviews of which 64,872 were positive and 8,429 were negative resulting in a rating of 8.7 out of 10. Thanks to its free to play tag and a daily player base of 438, this game has secured the #3 spot in the ranking of free games like Half-Life: Source.
8.7
64,872
8,429

438
players

4. Quake Champions

Similarity 61% Step into the Arena. Compete against players from around the world in this fast-paced shooter that combines the dark mythos of the original Quake with the skill-based competition of Quake III Arena. Become a Champion. Quake Champions is a arena shooter, hero shooter and early access game developed by id Software and published by Bethesda Softworks. Released on August 18th 2022 has received 38,273 reviews of which 28,231 were positive and 10,042 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 286 players due to its free access, this strategy game has achieved the #4 position in the best free games like Half-Life: Source.
7.3
28,231
10,042

286
players

5. TOXIKK™

Similarity 59% FRAG LIKE IT'S 1999! TOXIKK plays as if today's military shooters never existed: Designed as a spiritual successor to the FPS giants of the late 90s and early 2ks, TOXIKK carefully evolves their mechanics with modern technology and fresh ideas elaborated with Arena-FPS enthusiasts. TOXIKK™ is a fps, action and free to play game developed by Reakktor Studios and published by Schwiezer System GmbH. Released on September 10th 2016 has received 5,794 reviews of which 4,471 were positive and 1,323 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 148 players due to its free access, this strategy game has achieved the #5 position in the best free games like Half-Life: Source.
7.5
4,471
1,323

148
players

6. Classic Marathon

Similarity 62% From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community. Classic Marathon is a fps, shooter and pvp game developed and published by Aleph One Developers. Released on May 10th 2024 has received 853 reviews of which 787 were positive and 66 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #6 spot among the most played free games like Half-Life: Source.
8.7
787
66

88
players

7. Quake II RTX

Similarity 63% Quake II RTX is a cutting-edge, ray-traced reimagining of id software’s old school classic, by NVIDIA’s Lightspeed Studios. Global lighting effects, including realistic reflections, refraction, shadows, ambient occlusion and global illumination are a result of the path-traced simulation of light. Quake II RTX is a free to play, action and fps game developed by Lightspeed Studios™ and published by NVIDIA. Released on June 06th 2019 has received 4,559 reviews of which 3,985 were positive and 574 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #7 spot among the most played free games like Half-Life: Source.
8.4
3,985
574

17
players

8. BRINK

Similarity 58% You decide the combat role you want to assume in the world of Brink as you fight to save yourself and mankind’s last refuge! BRINK is a fps, action and multiplayer game developed by Splash Damage and published by Bethesda Softworks. Released on May 09th 2011 has received 7,920 reviews of which 4,976 were positive and 2,944 were negative resulting in a rating of 6.2 out of 10. The game currently holds the #8 spot among the most played free games like Half-Life: Source.
6.2
4,976
2,944

11
players

9. The Lab

Similarity 58% Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free! The Lab is a free to play, vr and singleplayer game developed and published by Valve. Released on April 05th 2016 has received 6,325 reviews of which 6,011 were positive and 314 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #9 spot among the most played free games like Half-Life: Source.
9.2
6,011
314

8
players

10. Chex Quest HD

Similarity 66% Travel to the remote planet of Bazoik to free galactic citizens from the evil cereal-eating Flemoids! Venture deep into the caverns of Bazoik, using an array of "zorching" devices to send these nefarious foes back to their home dimension! Chex Quest HD is a free to play, action and indie game developed by Team Chex Quest HD and Flight School Studio and published by General Mills. Released on May 18th 2020 has received 2,012 reviews of which 1,612 were positive and 400 were negative resulting in a rating of 7.7 out of 10. The game currently holds the #10 spot among the most played free games like Half-Life: Source.
7.7
1,612
400

2
players