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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The Thing: Remastered
The Thing: Remastered is a faithful restoration of the cult-classic 2002 third-person survival horror shooter game inspired by Universal Pictures’ genre-defining 1982 film, The Thing
Avatar: Frontiers of Pandora™
Avatar: Frontiers of Pandora™ is a first-person, action-adventure game set in the Western Frontier. Reconnect with your lost heritage and discover what it truly means to be Na'vi as you join other clans to protect Pandora.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 17th 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 30,771 peak concurrent players over the last day.
9.1
653,299
55,722
30,771
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 21,561 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
21,561
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 831,556 reviews of which 699,588 were positive and 131,968 were negative resulting in a rating of 8.4 out of 10. While seeing 19,604 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
699,588
131,968
19,604
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 389,458 reviews of which 323,460 were positive and 65,998 were negative resulting in a rating of 8.2 out of 10. With 13,694 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
323,460
65,998
13,694
players
5. 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 93,304 reviews of which 84,551 were positive and 8,753 were negative resulting in a rating of 8.9 out of 10. With 12,201 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Half-Life: Source.
8.9
84,551
8,753
12,201
players
6. 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 10,836 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Half-Life: Source.
9.1
505,358
48,571
10,836
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 5,247 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
5,247
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 212,926 reviews of which 179,328 were positive and 33,598 were negative resulting in a rating of 8.3 out of 10. With 4,167 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
179,328
33,598
4,167
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 3,950 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
3,950
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 3,277 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
3,277
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 17th 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 13,504 reviews of which 11,934 were positive and 1,570 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
11,934
1,570
-94%
33.33€
2.00€
4. Deadfall Adventures
Similarity 54% 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. Deadfall Adventures is a adventure, action and fps game developed by The Farm 51 and published by THQ Nordic. Released on November 15th 2013 has received 2,512 reviews of which 1,853 were positive and 659 were negative resulting in a rating of 7.2 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.
7.2
1,853
659
-94%
21.50€
1.29€
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 26,059 reviews of which 23,992 were positive and 2,067 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
23,992
2,067
-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. 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 3,171 reviews of which 2,251 were positive and 920 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 93% discount, this title has earned the #8 position in the best deals for games like Half-Life: Source.
6.9
2,251
920
-93%
20.86€
1.46€
9. 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 38,454 reviews of which 36,217 were positive and 2,237 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 #9 position in the best deals for games like Half-Life: Source.
9.2
36,217
2,237
-92%
62.38€
4.99€
10. 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 93,304 reviews of which 84,551 were positive and 8,753 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
84,551
8,753
-92%
18.75€
1.50€
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 17th 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 10,836 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
10,836
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 2,205, this game has secured the #2 spot in the ranking of free games like Half-Life: Source.
6.9
123,035
53,255
2,205
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 73,111 reviews of which 64,708 were positive and 8,403 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 373, this game has secured the #3 spot in the ranking of free games like Half-Life: Source.
8.7
64,708
8,403
373
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 38,258 reviews of which 28,224 were positive and 10,034 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 223 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
28,224
10,034
223
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 5,789 reviews of which 4,468 were positive and 1,321 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 122 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
4,468
1,321
122
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. Attracting a solid base of 116 players due to its free access, this strategy game has achieved the #6 position in the best free games like Half-Life: Source.
8.7
787
66
116
players
7. 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 #7 spot among the most played free games like Half-Life: Source.
9.2
6,011
314
18
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
14
players
9. 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 4,555 reviews of which 3,982 were positive and 573 were negative resulting in a rating of 8.5 out of 10. The game currently holds the #9 spot among the most played free games like Half-Life: Source.
8.5
3,982
573
9
players
10. Transmissions: Element 120
Similarity 65% TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls. The story takes place at a mysterious date & location. Where are you? Why have you been sent? Transmissions: Element 120 is a free to play, action and shooter game developed by Shokunin, Thomas M. Visser and Vincent Thiele and published by Self published. Released on June 16th 2016 has received 9,777 reviews of which 9,239 were positive and 538 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #10 spot among the most played free games like Half-Life: Source.
9.2
9,239
538
4
players