Games like Half-Life: Opposing Force on Steam

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

Filters & Lists
Titanfall® 2 Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.

Similarity 59%
Price 29.99€
Rating 9.4
Release 18 Jun 2020
Masked Shooters 2 Masked Shooters 2 puts you on the front line of a dangerous gunfight that can only end in victory or defeat; there will be no white flags to wave. As a covert ops soldier, you have access to advanced weapons that will blow your enemies away, if you know how to use them.

Similarity 59%
Price 0.99€
Rating 6.8
Release 14 Jan 2016
Xenus 2. White gold. Caribbean islands; islands full of secrets, mystery and the spirit of romance. These islands are both beautiful and lethally dangerous. Centuries ago the waters of this region were teeming with pirates and adventurers... and frankly, not much has changed since then.

Similarity 59%
Price -92% 0.99€
Rating 6.8
Release 30 Nov 2016
Delta Force — Black Hawk Down: Team Sabre Delta Force — Black Hawk Down: Team Sabre is the official expansion pack to the #1 best selling PC game in North America. Team Sabre was developed using the Delta Force — Black Hawk Down engine and it requires the mother product to run.

Similarity 59%
Price 9.99€
Rating 8.7
Release 18 Jun 2009
UberSoldier II Deal another deadly blow to fascism!

Similarity 59%
Price -80% 1.75€
Rating 7.3
Release 25 Mar 2014
Call of Duty®: Advanced Warfare - Gold Edition Call of Duty®: Advanced Warfare envisions a powerful future, where both technology and tactics have evolved to usher in a new era of combat for the franchise.Power Changes Everything.

Similarity 59%
Price 59.99€
Rating 6.4
Release 03 Nov 2014
Serious Sam 2 Serious Sam 2 is a shot of adrenaline to the hearts of first-person shooter fans across the world. This is serious!

Similarity 59%
Price -78% 2.16€
Rating 8.7
Release 31 Jan 2012
Zortch Meet Zortch Maxinum: short order cook, amateur engineer and professional slacker; Bored and tired of her day job she decides to go on a holiday but alas she picks a cheap option: turns out it's a scheme by aliens who capture humans to eat their brains! also this game is a sci-fi horror comedy fps

Similarity 58%
Price 4.60€
Rating 9.2
Release 08 Jun 2023
SharpShooter3D SharpShooter3D is a first-person subculture shooter in the best old school traditions. Burn! Destroy! Kill! Kill! Kill!

Similarity 58%
Price 3.99€
Rating 9.1
Release 14 Jul 2023
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 -90% 4.01€
Rating 8.7
Release 13 Dec 2022
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 -78% 0.66€
Rating 8.4
Release 06 Mar 2014
Call of Juarez: Gunslinger From the dust of a gold mine to the dirt of a saloon, Call of Juarez® Gunslinger is a real homage to the Wild West tales. Live the epic and violent journey of a ruthless bounty hunter on the trail of the West’s most notorious outlaws.

Similarity 58%
Price -96% 0.52€
Rating 9.3
Release 22 May 2013
Angels Fall First From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!

Similarity 58%
Price 17.99€
Rating 7.9
Release 01 Oct 2015
Halo: Spartan Strike Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*

Similarity 58%
Price 2.99€
Rating 7.7
Release 16 Apr 2015
Shadow Warrior 3: Definitive Edition Take an adrenaline-fueled journey through a mythical Japanese realm in the Definitive Edition of Shadow Warrior 3, packed with new features, and enjoy an ultraviolent blend of fast-paced gunplay, razor-sharp melee combat, and spectacular free-running movement.

Similarity 58%
Price 38.99€
Rating 6.7
Release 01 Mar 2022
Bright Memory: Infinite Bright Memory: Infinite is an all-new lightning-fast fusion of the FPS and action genres, created by FYQD-Studio. Combine a wide variety of skills and abilities to unleash dazzling combo attacks.

Similarity 58%
Price 16.79€
Rating 9.0
Release 11 Nov 2021
Necromunda: Hired Gun Become a Hired Gun. The money’s good, the dog’s loyal, and the gun’s reliable. Embark on a fast-paced, violent, and thrilling FPS set in the darkest reaches of Warhammer 40,000’s most infamous hive city.

Similarity 58%
Price -98% 1.15€
Rating 6.5
Release 31 May 2021
Call of Duty®: Black Ops Cold War Black Ops Cold War, the direct sequel to Call of Duty®: Black Ops, will drop fans into the depths of the Cold War’s volatile geopolitical battle of the early 1980s.

Similarity 58%
Price 59.99€
Rating 7.9
Release 08 Mar 2023
Rogue Trooper Nu Earth: a poisoned planet where endless war rages between the Norts and the Southers. A futile struggle on a hostile planet with no end in sight. But there are tales of a lone warrior. A man who knows no allegiance, the Rogue Trooper!

Similarity 58%
Price -75% 2.53€
Rating 8.8
Release 29 Mar 2007
SiN: Gold SiN: Gold has returned! Free update for original owners!

Similarity 58%
Price -90% 0.87€
Rating 7.4
Release 18 Mar 2020
Rise of Liberty Rise of Liberty is a FPS single-player massive Revolutionary War battle simulator. Fire deafening cannons into the thick of the battle, stand in line formation and fire devastating volleys into the enemy. Gather your men for these monumental battles and defeat the enemy!

Similarity 58%
Price 6.59€
Rating 8.1
Release 30 May 2019
Halo Infinite 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.

Similarity 58%
Price Free to play
Rating 6.9
Release 15 Nov 2021
Indiana Jones® and the Emperor's Tomb™ As Indiana Jones, you’ll travel to 1935 China to prevent a powerful artifact from falling into evil hands. This globe-spanning adventure pits you against evil Nazis and the Asian underworld. It’ll take more than just a trusty whip and pistol to avoid the perils of the Emperor’s Tomb.

Similarity 57%
Price 5.89€
Rating 8.7
Release 16 Nov 2018
Havoc Havoc is an arcade tactical first-person shooter with semi-destructible environments. It offers a variety of game modes, including Bomb Defusal, Team Deathmatch, Free for All, and Gun Game, along with extensive options to customize lobby settings to your preferences.

Similarity 57%
Price Free to play
Rating 6.5
Release 22 Jul 2024

Most played games like Half-Life: Opposing Force on Steam

Take a look at the top games like Half-Life: Opposing Force that are currently attracting the largest player bases on the Steam platform, as of June 17th 2025.

1. Counter-Strike: Source

Similarity 52% Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology. Counter-Strike: Source is a shooter, fps and action game developed and published by Valve. Released on November 01st 2004 has received 182,234 reviews of which 175,426 were positive and 6,808 were negative resulting in an impressive rating of 9.5 out of 10. The game has hit the top spot as the #1 most played game like Half-Life: Opposing Force, thanks to its 10,865 peak concurrent players over the last day.
9.5
175,426
6,808

10,865
players

2. STAR WARS™ Battlefront™ II

Similarity 55% Be the hero in the ultimate STAR WARS™ battle fantasy with STAR WARS™ Battlefront™ II: Celebration Edition! STAR WARS™ Battlefront™ II is a multiplayer, shooter and singleplayer game developed by DICE and published by Electronic Arts. Released on June 11th 2020 has received 71,208 reviews of which 62,342 were positive and 8,866 were negative resulting in a rating of 8.6 out of 10. While seeing 6,415 players online at once in the last 24 hours, this game is currently ranked #2 among games like Half-Life: Opposing Force based on player count.
8.6
62,342
8,866

6,415
players

3. Counter-Strike

Similarity 64% Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team's success. Your team's success affects your role. Counter-Strike is a action, fps and multiplayer game developed and published by Valve. Released on November 01st 2000 has received 250,245 reviews of which 243,818 were positive and 6,427 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 6,246 players online at once in the last 24 hours, this game is currently ranked #3 among games like Half-Life: Opposing Force based on player count.
9.6
243,818
6,427

6,246
players

4. Call of Duty®: Black Ops III

Similarity 50% 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 215,026 reviews of which 181,306 were positive and 33,720 were negative resulting in a rating of 8.4 out of 10. With 4,406 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Half-Life: Opposing Force.
8.4
181,306
33,720

4,406
players

5. Halo: The Master Chief Collection

Similarity 62% 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 242,067 reviews of which 223,635 were positive and 18,432 were negative resulting in an impressive rating of 9.1 out of 10. With 3,475 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Half-Life: Opposing Force.
9.1
223,635
18,432

3,475
players

6. Battlefield™ 1

Similarity 51% Battlefield™ 1 takes you back to The Great War, WW1, where new technology and worldwide conflict changed the face of warfare forever. Battlefield™ 1 is a fps, multiplayer and singleplayer game developed by DICE and published by Electronic Arts. Released on June 11th 2020 has received 192,821 reviews of which 166,775 were positive and 26,046 were negative resulting in a rating of 8.6 out of 10. With 3,404 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Half-Life: Opposing Force.
8.6
166,775
26,046

3,404
players

7. Halo Infinite

Similarity 58% 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 177,041 reviews of which 123,333 were positive and 53,708 were negative resulting in a rating of 6.9 out of 10. With 2,951 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Half-Life: Opposing Force.
6.9
123,333
53,708

2,951
players

8. DOOM: The Dark Ages

Similarity 61% DOOM: The Dark Ages is the prequel to the critically acclaimed DOOM (2016) and DOOM Eternal that tells an epic cinematic story worthy of the DOOM Slayer’s legend. Players will step into the blood-stained boots of the DOOM Slayer, in this never-before-seen dark and sinister medieval war against Hell. DOOM: The Dark Ages is a action, fps and demons game developed by id Software and published by Bethesda Softworks. Released on May 14th 2025 has received 21,671 reviews of which 18,891 were positive and 2,780 were negative resulting in a rating of 8.5 out of 10. With 2,039 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Half-Life: Opposing Force.
8.5
18,891
2,780

2,039
players

9. KovaaK's

Similarity 56% Master your aim with KovaaK’s, the world’s best aim trainer. With over 200,000 scenarios, playlists and more! Embrace total customization, including a map editor and game physics. More than just a trainer, it’s a dynamic, community-driven platform that elevates your gameplay. KovaaK's is a action, shooter and simulation game developed and published by KovaaK Games. Released on April 03rd 2018 has received 35,305 reviews of which 32,776 were positive and 2,529 were negative resulting in an impressive rating of 9.1 out of 10. With 1,604 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Half-Life: Opposing Force.
9.1
32,776
2,529

1,604
players

10. Half-Life 2

Similarity 90% Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat. Half-Life 2 is a fps, action and sci-fi game developed and published by Valve. Released on November 16th 2004 has received 245,627 reviews of which 239,721 were positive and 5,906 were negative resulting in an impressive rating of 9.7 out of 10. With 1,520 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Half-Life: Opposing Force.
9.7
239,721
5,906

1,520
players

Best deals on games like Half-Life: Opposing Force on Steam

Discover fantastic savings with the best discounts on a variety of games like Half-Life: Opposing Force available on Steam right now, updated on June 17th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Half-Life: Opposing Force.

1. Overload

Similarity 65% A new six-degree-of-freedom shooter with intuitive controls, amazing lighting and graphics. From the creators of Descent, Overload is the best zero-gravity robot-blasting combat ever. Overload is a action, 6dof and fps game developed and published by Revival Productions and LLC. Released on May 31st 2018 has received 2,022 reviews of which 1,903 were positive and 119 were negative resulting in a rating of 9.0 out of 10. Featuring a massive 98% discount, this game currently holds the #1 spot in the best deals for games like Half-Life: Opposing Force.
9.0
1,903
119

-98% 24.99€ 0.59€

2. Hard Reset Redux

Similarity 69% Hard Reset Redux is an action-packed and hardcore single-player shooter which embraces the best qualities that the genre has it offer. It includes over-the-top destruction, loads of enemies, great weapon variety, a challenging campaign and a beautifully realized cyberpunk setting. Hard Reset Redux is a action, fps and adventure game developed by Flying Wild Hog and published by Good Shepherd Entertainment. Released on June 03rd 2016 has received 2,245 reviews of which 1,823 were positive and 422 were negative resulting in a rating of 7.8 out of 10. Thanks to its incredible 98% discount, this game is now the #2 best deal in games like Half-Life: Opposing Force.
7.8
1,823
422

-98% 19.99€ 0.44€

3. F.E.A.R. 3

Similarity 56% 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 12,758 reviews of which 9,070 were positive and 3,688 were negative resulting in a rating of 7.0 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like Half-Life: Opposing Force.
7.0
9,070
3,688

-98% 19.99€ 0.45€

4. Alien Rage - Unlimited

Similarity 74% Unleash a fury of powerful weapons as you blast your way through armies of Alien forces hell-bent on taking you down! Battle through 14 intense levels and prepare to face a barrage of beastly-sized bosses that will test your every skill. Each of your 10 weapons comes with two firing modes and you’ll need all of them! Alien Rage - Unlimited is a action, shooter and fps game developed and published by CI Games. Released on September 24th 2013 has received 3,455 reviews of which 2,334 were positive and 1,121 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like Half-Life: Opposing Force.
6.6
2,334
1,121

-98% 19.99€ 0.54€

5. Enemy Front

Similarity 60% ENEMY FRONT is the first truly modern WW2 FPS, featuring stunning visuals, open-ended levels and a richly interactive combat experience that breaks out of the standard model of highly linear scripted FPS experiences, giving the player full freedom to own their playing style. Enemy Front is a action, fps and world war ii game developed and published by CI Games. Released on June 10th 2014 has received 5,436 reviews of which 3,599 were positive and 1,837 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Half-Life: Opposing Force.
6.5
3,599
1,837

-98% 19.99€ 0.53€

6. Necromunda: Hired Gun

Similarity 58% Become a Hired Gun. The money’s good, the dog’s loyal, and the gun’s reliable. Embark on a fast-paced, violent, and thrilling FPS set in the darkest reaches of Warhammer 40,000’s most infamous hive city. Necromunda: Hired Gun is a action, warhammer 40k and adventure game developed by Streum On Studio and published by Focus Entertainment. Released on May 31st 2021 has received 7,422 reviews of which 4,864 were positive and 2,558 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Half-Life: Opposing Force.
6.5
4,864
2,558

-98% 39.99€ 1.15€

7. Metal: Hellsinger

Similarity 55% Slay to the rhythm of metal and vengeance on an infernal journey through the eight Hells. Make them fear the beat. Metal: Hellsinger is a rhythm FPS bursting with demons, badass weapons, and heavy metal music. Metal: Hellsinger is a rhythm, fps and atmospheric game developed by The Outsiders and published by Funcom. Released on September 15th 2022 has received 15,766 reviews of which 15,140 were positive and 626 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 97% discount, this title has earned the #7 position in the best deals for games like Half-Life: Opposing Force.
9.4
15,140
626

-97% 29.99€ 1.10€

8. The Darkness II

Similarity 54% An intense first person shooter that delivers a twisted and gripping narrative of tragedy, modern crime drama, and supernatural horror. The Darkness II is a fps, action and gore game developed by Digital Extremes and published by 2K. Released on February 09th 2012 has received 19,772 reviews of which 18,121 were positive and 1,651 were negative resulting in a rating of 9.0 out of 10. Currently offered at a significant 97% discount, this title has earned the #8 position in the best deals for games like Half-Life: Opposing Force.
9.0
18,121
1,651

-97% 29.99€ 1.07€

9. Hidden & Dangerous 2: Courage Under Fire

Similarity 53% Hidden & Dangerous 2 is a first and third person tactical shooter that builds upon the tremendous success of Hidden & Dangerous. You lead a small squad of Allied soldiers deep behind enemy lines, to carry out secret missions during World War II. Hidden & Dangerous 2: Courage Under Fire is a action, strategy and fps game developed by Illusion Softworks and published by 2K. Released on December 20th 2017 has received 877 reviews of which 836 were positive and 41 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 97% discount, this title has earned the #9 position in the best deals for games like Half-Life: Opposing Force.
8.9
836
41

-97% 9.99€ 0.39€

10. Duke Nukem 3D: 20th Anniversary World Tour

Similarity 74% Frag like it’s 1996 – this time with even more asses to kick! Join the world’s greatest action hero in Duke Nukem 3D: 20th Anniversary World Tour as he saves Earth once again, kicking alien ass and saving babes across the globe along the way. Duke Nukem 3D: 20th Anniversary World Tour is a fps, classic and action game developed by Nerve Software, Gearbox Software and LLC and published by Gearbox Publishing. Released on October 11th 2016 has received 5,684 reviews of which 4,802 were positive and 882 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 97% discount, this title has earned the #10 position in the best deals for games like Half-Life: Opposing Force.
8.2
4,802
882

-97% 19.99€ 0.76€

Free games like Half-Life: Opposing Force on Steam

Check out this fantastic list of free-to-play games like Half-Life: Opposing Force you can enjoy on Steam right now, updated on June 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: Opposing Force.

1. Halo Infinite

Similarity 58% 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 177,041 reviews of which 123,333 were positive and 53,708 were negative resulting in a rating of 6.9 out of 10. With 2,951 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Half-Life: Opposing Force.
6.9
123,333
53,708

2,951
players

2. Black Squad

Similarity 52% Black Squad is a free-to-play military first-person-shooter. Players can master their skills and show off their strategies with a wide range of game maps, modes, and weapons to choose from. Join thousands of FPS players worldwide in one of the most played games on Steam! Black Squad is a free to play, fps and shooter game developed by VALOFE and NS STUDIO and published by VALOFE. Released on June 26th 2019 has received 81,714 reviews of which 62,042 were positive and 19,672 were negative resulting in a rating of 7.5 out of 10. Thanks to its free to play tag and a daily player base of 180, this game has secured the #2 spot in the ranking of free games like Half-Life: Opposing Force.
7.5
62,042
19,672

180
players

3. America's Army: Proving Grounds

Similarity 54% America’s Army: Proving Grounds is the official game of the U.S. Army and part of the highly acclaimed America’s Army game series. This free military game focuses on small unit tactical maneuvers and puts you to the test in a wide variety of new America’s Army maps and AA fan favorites. America's Army: Proving Grounds is a free to play, fps and action game developed and published by U.S. Army. Released on August 29th 2013 has received 10,952 reviews of which 8,637 were positive and 2,315 were negative resulting in a rating of 7.7 out of 10. Thanks to its free to play tag and a daily player base of 172, this game has secured the #3 spot in the ranking of free games like Half-Life: Opposing Force.
7.7
8,637
2,315

172
players

4. Zula Global

Similarity 50% Zula is an intense free-to-play FPS in which you can play cooperatively with your teammates to overthrow the enemy side. You can enjoy new content weekly and receive gifts every day. Variety of maps and weapons from the real world so you can immerse yourself 100%. Zula Global is a free to play, fps and action game developed and published by Madbyte Games. Released on January 12th 2018 has received 7,595 reviews of which 5,310 were positive and 2,285 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 151 players due to its free access, this strategy game has achieved the #4 position in the best free games like Half-Life: Opposing Force.
6.9
5,310
2,285

151
players

5. TOXIKK™

Similarity 55% 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 5,811 reviews of which 4,485 were positive and 1,326 were negative resulting in a rating of 7.5 out of 10. The game currently holds the #5 spot among the most played free games like Half-Life: Opposing Force.
7.5
4,485
1,326

89
players

6. Hired Ops

Similarity 52% Hired Ops is a session-based online shooter dedicated to fierce conflicts between rival mercenary groups battling on a global scale. Hired Ops is a fps, multiplayer and free to play game developed by Absolut Soft LLC and published by . Released on April 13th 2021 has received 15,641 reviews of which 10,532 were positive and 5,109 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #6 spot among the most played free games like Half-Life: Opposing Force.
6.6
10,532
5,109

64
players

7. PAPERHEAD EP.0

Similarity 51% In this cute cardboard world, something went horribly wrong... You wake up in a prison cell. A strange voice calls to you from the depths of dark corridors covered in runic symbols and blood. Reload your trusty shotgun and find out... WHY WOULD CARDBOARD... BLEED? PAPERHEAD EP.0 is a fps, fast-paced and singleplayer game developed by Paperhead te4m and published by HypeTrain Digital. Released on November 14th 2024 has received 1,842 reviews of which 1,717 were positive and 125 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #7 spot among the most played free games like Half-Life: Opposing Force.
8.9
1,717
125

33
players

8. Classic Marathon

Similarity 52% 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 935 reviews of which 858 were positive and 77 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #8 spot among the most played free games like Half-Life: Opposing Force.
8.6
858
77

8
players

9. Quake II RTX

Similarity 54% 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 4,590 reviews of which 4,009 were positive and 581 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #9 spot among the most played free games like Half-Life: Opposing Force.
8.4
4,009
581

7
players

10. FPS Game: Dev Test

Similarity 51% A Simple, Fun, Multiplayer FPS game, strictly built and packaged for development testing and networking development. FPS Game: Dev Test is a action, shooter and fps game developed and published by jackal_dev_test. Released on February 26th 2022 has received 1,421 reviews of which 1,209 were positive and 212 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #10 spot among the most played free games like Half-Life: Opposing Force.
8.1
1,209
212

4
players