Games like Intruder on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Intruder are available at the bottom of the page.
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Serious Sam Fusion 2017 (beta)
Serious Sam Fusion is a central hub for several existing Serious Sam games developed by Croteam. Cool new features, engine upgrades, patches and updates will be released to existing owners for FREE!
Madness Cubed
Online shooter with a variety of game modes and a huge arsenal of weapons. Fight with other players, or team up with them to defeat hordes of zombies and mutants!
Reflex Arena
Reflex is a competitive Arena FPS that combines modern tech with the speed, precision and freedom of a 90s shooter. If you sunk countless hours into the Quake or Unreal series, Reflex will feel like a welcome return of the old school shooter feel.
Serious Sam Classic: The Second Encounter
Serious Sam Classic: The Second Encounter is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month February 2002!
Serious Sam Classic: The First Encounter
Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!
Tribes: Ascend
This edition packages weapon DLC from ten previous expansions as well new featured content.Most played games like Intruder on Steam
Take a look at the top games like Intruder that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Counter-Strike 2
Similarity 61% For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2. Counter-Strike 2 is a fps, shooter and multiplayer game developed and published by Valve. Released on August 21st 2012 has received 8,740,794 reviews of which 7,583,945 were positive and 1,156,849 were negative resulting in a rating of 8.7 out of 10. The game has hit the top spot as the #1 most played game like Intruder, thanks to its 630,905 peak concurrent players over the last day.
8.7
7,583,945
1,156,849
630,905
players
2. Schedule I
Similarity 62% From small-time dope pusher to kingpin - manufacture and distribute a range of drugs throughout the grungy city of Hyland Point. Expand your empire with properties, businesses, employees and more. Schedule I is a simulation, co-op and crime game developed and published by TVGS. Released on March 24th 2025 has received 145,504 reviews of which 143,373 were positive and 2,131 were negative resulting in an impressive rating of 9.7 out of 10. While seeing 86,891 players online at once in the last 24 hours, this game is currently ranked #2 among games like Intruder based on player count.
9.7
143,373
2,131
86,891
players
3. Tom Clancy's Rainbow Six® Siege
Similarity 61% Tom Clancy's Rainbow Six® Siege is an elite, tactical team-based shooter where superior planning and execution triumph. Tom Clancy's Rainbow Six® Siege is a fps, pvp and e-sports game developed by Ubisoft Montreal and published by Ubisoft. Released on December 01st 2015 has received 1,389,850 reviews of which 1,166,753 were positive and 223,097 were negative resulting in a rating of 8.4 out of 10. While seeing 59,643 players online at once in the last 24 hours, this game is currently ranked #3 among games like Intruder based on player count.
8.4
1,166,753
223,097
59,643
players
4. Rust
Similarity 58% The only aim in Rust is to survive. Everything wants you to die - the island’s wildlife, other inhabitants, the environment, and other survivors. Do whatever it takes to last another night. Rust is a survival, crafting and multiplayer game developed and published by Facepunch Studios. Released on February 08th 2018 has received 1,215,155 reviews of which 1,060,406 were positive and 154,749 were negative resulting in a rating of 8.7 out of 10. With 59,015 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Intruder.
8.7
1,060,406
154,749
59,015
players
5. Apex Legends™
Similarity 61% Apex Legends is the award-winning, free-to-play Hero Shooter from Respawn Entertainment. Master an ever-growing roster of legendary characters with powerful abilities, and experience strategic squad play and innovative gameplay in the next evolution of Hero Shooter and Battle Royale. Apex Legends™ is a free to play, battle royale and multiplayer game developed by Respawn and published by Electronic Arts. Released on November 04th 2020 has received 988,584 reviews of which 663,861 were positive and 324,723 were negative resulting in a rating of 6.7 out of 10. With 55,172 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Intruder.
6.7
663,861
324,723
55,172
players
6. Crosshair X
Similarity 53% Overlay custom crosshairs on every game you play. Choose from thousands of unique crosshairs created by the Crosshair X community or design your own using the designer. Crosshair X is a action, indie and adventure game developed and published by CenterPoint Gaming. Released on August 17th 2020 has received 30,201 reviews of which 28,200 were positive and 2,001 were negative resulting in an impressive rating of 9.1 out of 10. With 42,485 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Intruder.
9.1
28,200
2,001
42,485
players
7. Team Fortress 2
Similarity 64% Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats! Team Fortress 2 is a free to play, hero shooter and multiplayer game developed and published by Valve. Released on October 10th 2007 has received 1,153,316 reviews of which 1,034,614 were positive and 118,702 were negative resulting in a rating of 8.9 out of 10. With 35,558 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Intruder.
8.9
1,034,614
118,702
35,558
players
8. Left 4 Dead 2
Similarity 58% 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 955,598 reviews of which 932,058 were positive and 23,540 were negative resulting in an impressive rating of 9.7 out of 10. With 17,964 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Intruder.
9.7
932,058
23,540
17,964
players
9. Garry's Mod
Similarity 58% Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play. Garry's Mod is a sandbox, moddable and multiplayer game developed by Facepunch Studios and published by Valve. Released on November 29th 2006 has received 1,153,288 reviews of which 1,116,314 were positive and 36,974 were negative resulting in an impressive rating of 9.6 out of 10. With 15,709 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Intruder.
9.6
1,116,314
36,974
15,709
players
10. Arma Reforger
Similarity 56% Experience authentic Cold War combat and join the struggle for the sprawling, mid-Atlantic island of Everon and its smaller, offshore territory, Arland – or take on the role of Game Master and create your very own scenarios for others to enjoy. Arma Reforger is a military, simulation and action game developed and published by Bohemia Interactive. Released on November 16th 2023 has received 27,917 reviews of which 20,990 were positive and 6,927 were negative resulting in a rating of 7.4 out of 10. With 11,247 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Intruder.
7.4
20,990
6,927
11,247
players
Best deals on games like Intruder on Steam
Discover fantastic savings with the best discounts on a variety of games like Intruder available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Intruder.
1. Rising Storm 2: Vietnam
Similarity 57% Red Orchestra Series' take on Vietnam: 64-player MP matches; 20+ maps; US Army & Marines, PAVN/NVA, NLF/VC; Australians and ARVN forces; 50+ weapons; 4 flyable helicopters; mines, traps and tunnels; Brutal. Authentic. Gritty. Character customization. And napalm in the morning. Rising Storm 2: Vietnam is a fps, wargame and massively multiplayer game developed by Antimatter Games and Tripwire Interactive and published by Tripwire Interactive. Released on May 30th 2017 has received 56,954 reviews of which 49,438 were positive and 7,516 were negative resulting in a rating of 8.5 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Intruder.
8.5
49,438
7,516
-95%
20.99€
1.04€
2. Party Hard 2
Similarity 57% It's 3am and you just want to get some sleep. Welcome back to Party Hard! Stop parties using hundreds of new ways, incidentally destroy a drug syndicate, and save the Earth from an alien invasion. May the chickens be with you! Party Hard 2 is a indie, violent and action game developed by Pinokl Games, Kverta and Hologryph and published by tinyBuild. Released on October 25th 2018 has received 2,981 reviews of which 2,354 were positive and 627 were negative resulting in a rating of 7.6 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Intruder.
7.6
2,354
627
-93%
19.00€
1.33€
3. The Blackout Club
Similarity 65% The Blackout Club is a first-person co-op horror game centered around a group of teenage friends investigating a monstrous secret beneath the skin of their small town. 1-4 players explore procedurally-generated missions against a fearsome enemy you can only see with your eyes closed. The Blackout Club is a horror, co-op and indie game developed and published by Question. Released on July 29th 2019 has received 2,830 reviews of which 2,203 were positive and 627 were negative resulting in a rating of 7.5 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like Intruder.
7.5
2,203
627
-92%
30.00€
2.40€
4. Crime Boss: Rockay City
Similarity 63% Crime Boss: Rockay City is a 1-4 player co-op FPS heist game with enjoyable stealth and epic killing spree combat. Featuring a solo roguelike campaign that combines FPS and strategy elements with the most hilariously cheesy voice acting that make you laugh. Crime Boss: Rockay City is a action, shooter and fps game developed by INGAME STUDIOS and published by 505 Games. Released on June 18th 2024 has received 7,230 reviews of which 5,045 were positive and 2,185 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #4 position in the best deals for games like Intruder.
6.8
5,045
2,185
-92%
19.25€
1.54€
5. Sniper Elite 4
Similarity 63% Discover unrivalled sniping freedom in the largest and most advanced World War 2 shooter ever built. Experience tactical third-person combat, gameplay choice and epic longshots across gigantic levels as you liberate wartime Italy from the grip of Fascism. Sniper Elite 4 is a sniper, action and multiplayer game developed and published by Rebellion. Released on February 13th 2017 has received 58,926 reviews of which 53,718 were positive and 5,208 were negative resulting in a rating of 9.0 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like Intruder.
9.0
53,718
5,208
-91%
59.22€
5.33€
6. Chivalry: Medieval Warfare
Similarity 62% Besiege castles and raid villages in Chivalry: Medieval Warfare, a fast-paced medieval first person slasher with a focus on multiplayer battles Chivalry: Medieval Warfare is a medieval, multiplayer and action game developed and published by Torn Banner Studios. Released on October 16th 2012 has received 65,473 reviews of which 54,044 were positive and 11,429 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 91% discount, this title has earned the #6 position in the best deals for games like Intruder.
8.1
54,044
11,429
-91%
22.44€
2.02€
7. Red Orchestra 2: Heroes of Stalingrad with Rising Storm
Similarity 64% Contains full Rising Storm content as well! Red Orchestra 2: Heroes of Stalingrad with Rising Storm is a world war ii, realistic and multiplayer game developed and published by Tripwire Interactive. Released on September 13th 2011 has received 37,534 reviews of which 34,679 were positive and 2,855 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 90% discount, this title has earned the #7 position in the best deals for games like Intruder.
9.1
34,679
2,855
-90%
24.99€
2.49€
8. Hidden & Dangerous 2: Courage Under Fire
Similarity 60% 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 862 reviews of which 821 were positive and 41 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 90% discount, this title has earned the #8 position in the best deals for games like Intruder.
8.9
821
41
-90%
10.00€
1.00€
9. Enemy Front
Similarity 67% 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 5,428 reviews of which 3,596 were positive and 1,832 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for games like Intruder.
6.5
3,596
1,832
-90%
19.80€
1.98€
10. Day of Infamy
Similarity 66% Experience close-quarters battles in iconic WWII settings. Defend the line, storm the beach, torch the enemy, or use a radio to call in fire support. Day of Infamy is a teamwork-oriented shooter that will keep you on your toes and coming back for more with its diverse game modes and authentic arsenal. Day of Infamy is a world war ii, fps and multiplayer game developed and published by New World Interactive. Released on March 23rd 2017 has received 22,064 reviews of which 18,191 were positive and 3,873 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 89% discount, this title has earned the #10 position in the best deals for games like Intruder.
8.1
18,191
3,873
-89%
12.64€
1.39€
Free games like Intruder on Steam
Check out this fantastic list of free-to-play games like Intruder you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Intruder.
1. Counter-Strike 2
Similarity 61% For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2. Counter-Strike 2 is a fps, shooter and multiplayer game developed and published by Valve. Released on August 21st 2012 has received 8,740,794 reviews of which 7,583,945 were positive and 1,156,849 were negative resulting in a rating of 8.7 out of 10. With 630,905 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Intruder.
8.7
7,583,945
1,156,849
630,905
players
2. Apex Legends™
Similarity 61% Apex Legends is the award-winning, free-to-play Hero Shooter from Respawn Entertainment. Master an ever-growing roster of legendary characters with powerful abilities, and experience strategic squad play and innovative gameplay in the next evolution of Hero Shooter and Battle Royale. Apex Legends™ is a free to play, battle royale and multiplayer game developed by Respawn and published by Electronic Arts. Released on November 04th 2020 has received 988,584 reviews of which 663,861 were positive and 324,723 were negative resulting in a rating of 6.7 out of 10. Thanks to its free to play tag and a daily player base of 55,172, this game has secured the #2 spot in the ranking of free games like Intruder.
6.7
663,861
324,723
55,172
players
3. Team Fortress 2
Similarity 64% Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats! Team Fortress 2 is a free to play, hero shooter and multiplayer game developed and published by Valve. Released on October 10th 2007 has received 1,153,316 reviews of which 1,034,614 were positive and 118,702 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 35,558, this game has secured the #3 spot in the ranking of free games like Intruder.
8.9
1,034,614
118,702
35,558
players
4. THE FINALS
Similarity 61% Join THE FINALS, the world-famous, free-to-play, combat-centered game show! Fight alongside your teammates in virtual arenas that you can alter, exploit, and even destroy. Build your own playstyle in this first-person shooter to win escalating tournaments and lasting fame. THE FINALS is a destruction, free to play and shooter game developed and published by Embark Studios. Released on December 07th 2023 has received 227,357 reviews of which 176,572 were positive and 50,785 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 10,633 players due to its free access, this strategy game has achieved the #4 position in the best free games like Intruder.
7.7
176,572
50,785
10,633
players
5. STALCRAFT: X
Similarity 56% STALCRAFT: X is the largest open-world online game in the Chernobyl Exclusion Zone. Explore the world full of mutants and anomalies alone or with friends — unforgettable emotions guaranteed. STALCRAFT: X is a free to play, mmorpg and multiplayer game developed and published by EXBO. Released on December 09th 2022 has received 75,642 reviews of which 57,632 were positive and 18,010 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 4,312 players due to its free access, this strategy game has achieved the #5 position in the best free games like Intruder.
7.5
57,632
18,010
4,312
players
6. Crosshair V2
Similarity 53% Crosshair V2 is a crosshair overlay technology that improves aim, response time, and hip fire accuracy for gamers. Choose from a variety of sizes, shapes, and neon colors to find the crosshair that gives you the greatest advantage in your favorite game. Crosshair V2 is a utilities, shooter and action game developed and published by CenterPoint Gaming. Released on January 26th 2023 has received 7,938 reviews of which 7,147 were positive and 791 were negative resulting in a rating of 8.7 out of 10. Attracting a solid base of 2,969 players due to its free access, this strategy game has achieved the #6 position in the best free games like Intruder.
8.7
7,147
791
2,969
players
7. Aimlabs
Similarity 71% Aimlabs is the aim trainer of choice for over 40 Million players, from beginners to esports pros. Our unique aim analysis optimizes your gameplay, targets your weaknesses & builds key skills for any FPS game! Time to warm up with our unlimited scenarios & rank up in-game! Aimlabs is a free to play, fps and shooter game developed and published by State Space Labs and Inc.. Released on June 16th 2023 has received 84,332 reviews of which 79,517 were positive and 4,815 were negative resulting in an impressive rating of 9.3 out of 10. Attracting a solid base of 2,595 players due to its free access, this strategy game has achieved the #7 position in the best free games like Intruder.
9.3
79,517
4,815
2,595
players
8. Enlisted
Similarity 57% In Enlisted, you are not only commanding a single soldier, but an entire squad! This MMO squad based shooter recreates the key battles of the bloodiest war of the 20th century, with hundreds of soldiers, tanks and aircraft taking part in each battle. Enlisted is a fps, world war ii and multiplayer game developed by Darkflow Software and published by Gaijin Network Ltd. Released on July 16th 2024 has received 26,095 reviews of which 20,907 were positive and 5,188 were negative resulting in a rating of 7.9 out of 10. Attracting a solid base of 2,498 players due to its free access, this strategy game has achieved the #8 position in the best free games like Intruder.
7.9
20,907
5,188
2,498
players
9. PlanetSide 2
Similarity 57% PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale. PlanetSide 2 is a free to play, fps and massively multiplayer game developed by Rogue Planet Games and published by Daybreak Game Company. Released on November 20th 2012 has received 73,521 reviews of which 59,515 were positive and 14,006 were negative resulting in a rating of 8.0 out of 10. Attracting a solid base of 596 players due to its free access, this strategy game has achieved the #9 position in the best free games like Intruder.
8.0
59,515
14,006
596
players
10. One-armed robber
Similarity 77% One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments. One-armed robber is a free to play, multiplayer and heist game developed and published by Duhndal. Released on December 15th 2023 has received 37,407 reviews of which 34,213 were positive and 3,194 were negative resulting in a rating of 9.0 out of 10. Attracting a solid base of 512 players due to its free access, this strategy game has achieved the #10 position in the best free games like Intruder.
9.0
34,213
3,194
512
players