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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SENTRY
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
Back 4 Blood
Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action.
The Walking Dead: Saints & Sinners
Saints & Sinners is a game unlike any other in The Walking Dead universe. Every challenge you face and decision you make is driven by YOU. Fight the undead, scavenge through the flooded ruins of New Orleans, and face gut-wrenching choices for you and the other survivors. Live The Walking Dead.
Borderlands Game of the Year Enhanced
Discover the original co-op shooter-looter, crammed with new enhancements! As one of 4 trigger-happy mercenaries with RPG progression, equip bazillions of guns to take on the desert planet Pandora.
Battlezone: Combat Commander
Battlezone: Combat Commander remasters FPS-RTS classic Battlezone II with slick new visuals, brand new achievements, Steam Workshop support and much more! The solar system is at war. Take command.
Super 3-D Noah's Ark
Fast paced, first person adventure aboard Noah's ark!
Arizona Sunshine®
Built exclusively for VR, Arizona Sunshine® puts you and up to 3 fellow survivors in the midst of a zombie apocalypse. Survive solo or in co-op, handle weapons with real-life movements, and explore a post-apocalyptic world in VR. Putting the undead back to rest is more thrilling than ever before.
Homeworld Remastered Collection
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.
LOST PLANET® 3
The extreme and unpredictable conditions that characterized the Lost Planet series return, harsher than ever before. Lost Planet 3 reveals new truths about the foreboding planet and the colonial history of E.D.N. III.
I Am Alive
I Am Alive casts the player as a lone survivor in a believable, dark and insecure post-apocalyptic world.
Cave Story+
Run, jump, shoot, fly and explore your way through a massive action-adventure reminiscent of classic 8- and 16-bit games.
Delta Force 1
As a member of Delta Force — The Army's Elite, top secret special forces unit — the word 'impossible' is not in your vocabulary. In Delta Force, you will conduct missions swiftly and silently, in every possible terrain, under every imaginable condition and through unconventional means.
Tom Clancy's Rainbow Six® Vegas
Tom Clancy's Rainbow Six makes its next-generation hardware debut in the most dramatic installment of the renowned first-person shooter franchise to date. Rainbow operatives take to the chaotic streets of Las Vegas as an escalating terrorist siege in 'Sin City' threatens to take world terrorism to new, uncontrollable heights.
Call of Duty: United Offensive
Award-winning developer Gray Matter Interactive follows up on the success of Infinity Ward's Call of Duty™ - winner of over 80 Game of the Year and 50 Editors' Choice awards worldwide - with Call of Duty™: United Offensive™.
Red Orchestra: Ostfront 41-45
Fight in the theatre of war that changed the world forever. Battle alongside your compatriots on some of the most inhospitable environments of the Eastern Front in Red Orchestra: Ostfront 41-45. Red Orchestra places you in the most realistic WWII first-person multi-player combat to date on the PC, allowing the player to fight through...
Fobia - St. Dinfna Hotel
Explore a decadent hotel across different timelines and uncover the dark history of a fanatical cult and your role in their plans.
Marvel's Guardians of the Galaxy
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.
BattleRush
Free-to-play multiplayer action game in the entourage of the Second World War with total destructibility of the environment. Enjoy full freedom, build a defense, create your army, crush the enemy.
Atomic Heart
In a mad and sublime utopian world, take part in explosive encounters. Adapt your fighting style to each opponent, use your environment and upgrade your equipment to fulfill your mission. If you want to reach the truth, you'll have to pay in blood.
Deadfall Adventures
Deadfall Adventures is an action-driven first-person shooter, spiced up with elements from action-adventure games. Become an adventurer, hunt for treasures, explore unknown regions of the world and rescue the damsel in distress from the clutches of enemies, both earthly and not-so-earthly.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. 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. Thanks to its incredible 94% discount, this game is now the #3 best deal in games like Half-Life: Source.
8.6
11,942
1,571
-94%
33.33€
2.00€
4. 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 #4 position in the best deals for games like Half-Life: Source.
9.0
24,000
2,069
-93%
28.00€
1.96€
5. 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 #5 position in the best deals for games like Half-Life: Source.
8.0
33,531
7,613
-93%
41.86€
2.93€
6. 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 #6 position in the best deals for games like Half-Life: Source.
7
8,996
3,625
-93%
19.71€
1.38€
7. 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 #7 position in the best deals for games like Half-Life: Source.
9.2
36,313
2,249
-92%
62.38€
4.99€
8. 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 #8 position in the best deals for games like Half-Life: Source.
9.0
87,371
8,895
-92%
18.75€
1.50€
9. 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 #9 position in the best deals for games like Half-Life: Source.
8.9
62,486
6,506
-92%
19.75€
1.58€
10. Them and Us
Similarity 56% Them and Us is a classic, survival horror game with a focus on atmosphere and player immersion. Discover the truth of Alicia’s past as she descends further into her strange, unending nightmare. Them and Us is a female protagonist, survival horror and horror game developed by TendoGames Co. and Ltd. and published by TendoGames Co., Ltd. and 方块游戏(CubeGame). Released on September 28th 2021 has received 1,366 reviews of which 1,043 were positive and 323 were negative resulting in a rating of 7.3 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.
7.3
1,043
323
-92%
32.50€
2.60€
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 7,918 reviews of which 4,975 were positive and 2,943 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
4,975
2,943
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