Games like DEFCON on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like DEFCON are available at the bottom of the page.
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Dungeon Defenders: Awakened
Dungeon Defenders: Awakened is co-op Tower Defense combined with epic Action RPG combat. You’re able to join forces with up to four players to take on a never-ending army of orcs, demons, and dragons! Are your defenses strong enough to save the world of Etheria?
Tom Clancy's Rainbow Six® Vegas 2
Tom Clancy's Rainbow Six® Vegas 2 - the sequel to the award-winning next-generation first-person shooter - returns to Sin City. Tom Clancy's Rainbow Six Vegas 2 is your last chance to rescue America's sexiest city from an escalating terrorist siege that will force you into heart-pounding action from beginning to end.
ICBM: Escalation
ICBM: Escalation is a grand RTS where you command armies, develop cutting-edge tech, and wield devastating weapons. Conquer enemies with conventional forces or nuclear firepower. With new modes like Standoff and Conquest, the game offers deep strategic layers in a global warfare setting.
The Escapists 2
Craft, Steal, Brawl and Escape! It’s time to bust out of the toughest prisons in the world as you return to the life of an inmate in The Escapists 2, now with multiplayer! Have you got what it takes to escape?
Company of Heroes 2
Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below.
Dungeon Defenders
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
Police Stories
A fresh take on top-down shooters with an emphasis on tactics that forces you to make split second decisions. Neutralize criminals, rescue civilians and defuse bombs in Single Player mode or Co-op. And remember - shooting first is not an option!
The Red Solstice
2280 A.D. The last few survivors of a ruined Earth seek a new home: Mars, a planet whose inhabitants didn't take too kindly to outsiders. The Red Solstice is a tense, tactical, squad-based action game. Fight to survive with up to 8 players in co-op, or lead your own squad in single-player mode.
GTFO
GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.
Door Kickers
Door Kickers is an innovative realtime strategy game that puts you in charge of a SWAT team and lets you command them during a tactical intervention.
TerraScape
Build gorgeous kingdoms on floating islands by strategically placing buildings in this cozy City-Puzzler. Discover secret combinations, take on weekly challenges and explore randomly generated maps in various single- and multiplayer game modes.
Men of War: Vietnam
The critically acclaimed series returns! Experience Vietnam from both sides of the war.
Zero Hour
Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.
Men of War II
Experience warfare like never before! Men of War II, the anticipated sequel to the highly acclaimed RTS franchise is here with all-new units, locations, campaigns, game modes and true trademarks of the series: historical fidelity and action-filled gameplay on the Eastern and Western Fronts of WWII.
Bloons TD 5
Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.
Plunder Panic
Chaotic Party Arr-cade Action for up to 12 players! Be the first to plunder all the treasure, sink the enemy ship, or defeat their captain. Featuring local & online play, crossplay, 18 stages, 30+ modify-arrs, and a single-player campaign!
Boti: Byteland Overclocked
Jump, Dash, Slide! Dive into a classic 3D platformer experience with Boti: Byteland Overclocked. Explore the stylized insides of a computer as a determined data robot and save Byteland from an ominous threat. Play solo or team up with a friend in seamless co-op.
POSTAL Redux
POSTAL Redux is a high definition remake of the classic dark and surreal twin-stick isometric shooter. Take control of The POSTAL Dude as he fights to survive in a world gone mad with violence.
Main Assembly
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.
Starship Troopers: Terran Command
Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!
Sins of a Solar Empire II
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Frozenheim
Lead your Viking clan onto unknown shores and carve out a future for your people in the fjords of Frozenheim. Gather resources, expand, and watch your settlement grow to a bustling town that will withstand the harshness of winter and wrath of other clans.
Most played games like DEFCON on Steam
Take a look at the top games like DEFCON that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.
1. Tom Clancy's Rainbow Six® Siege X
Similarity 51% Rainbow Six Siege X is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked and Dual Front game modes with a selection of operators. Tom Clancy's Rainbow Six® Siege X is a fps, pvp and multiplayer game developed by Ubisoft Montreal and published by Ubisoft. Released on December 01st 2015 has received 1,398,584 reviews of which 1,172,854 were positive and 225,730 were negative resulting in a rating of 8.3 out of 10. The game has hit the top spot as the #1 most played game like DEFCON, thanks to its 108,174 peak concurrent players over the last day.
8.3
1,172,854
225,730
108,174
players
2. ELDEN RING NIGHTREIGN
Similarity 40% ELDEN RING NIGHTREIGN is a standalone adventure within the ELDEN RING universe, crafted to offer players a new gaming experience by reimagining the game’s core design. ELDEN RING NIGHTREIGN is a souls-like, online co-op and rogue-like game developed by FromSoftware and Inc. and published by FromSoftware, Inc. and Bandai Namco Entertainment. Released on May 29th 2025 has received 65,672 reviews of which 48,901 were positive and 16,771 were negative resulting in a rating of 7.4 out of 10. While seeing 104,169 players online at once in the last 24 hours, this game is currently ranked #2 among games like DEFCON based on player count.
7.4
48,901
16,771
104,169
players
3. Bloons TD 6
Similarity 51% The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Bloons TD 6 is a tower defense, strategy and multiplayer game developed and published by Ninja Kiwi. Released on December 17th 2018 has received 353,960 reviews of which 344,269 were positive and 9,691 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 9,200 players online at once in the last 24 hours, this game is currently ranked #3 among games like DEFCON based on player count.
9.6
344,269
9,691
9,200
players
4. F1® 25
Similarity 42% Leave your mark on the world of racing in F1® 25, the official video game of the 2025 FIA Formula One World Championship™, featuring a revamped My Team mode, the thrilling third chapter of Braking Point, and more! F1® 25 is a racing, sports and simulation game developed by Codemasters and published by Electronic Arts. Released on May 30th 2025 has received 2,088 reviews of which 1,853 were positive and 235 were negative resulting in a rating of 8.5 out of 10. With 4,385 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like DEFCON.
8.5
1,853
235
4,385
players
5. World of Warships
Similarity 51% Immerse yourself in thrilling naval battles and assemble an armada of over 600 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players! World of Warships is a free to play, naval combat and action game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 146,552 reviews of which 112,887 were positive and 33,665 were negative resulting in a rating of 7.6 out of 10. With 4,236 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like DEFCON.
7.6
112,887
33,665
4,236
players
6. Company of Heroes 2
Similarity 49% Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below. Company of Heroes 2 is a strategy, world war ii and rts game developed by Relic Entertainment and Feral Interactive (Linux) and published by Relic Entertainment, Feral interactive (Mac) and Feral Interactive (Linux). Released on June 25th 2013 has received 109,825 reviews of which 86,713 were positive and 23,112 were negative resulting in a rating of 7.8 out of 10. With 2,038 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like DEFCON.
7.8
86,713
23,112
2,038
players
7. Tom Clancy's Ghost Recon® Breakpoint
Similarity 43% Become a Ghost, fighting against a rogue spec ops faction called the Wolves, in the latest Tom Clancy's Ghost Recon®! Tom Clancy's Ghost Recon® Breakpoint is a open world, co-op and singleplayer game developed by Ubisoft Paris and published by Ubisoft. Released on January 23rd 2023 has received 32,563 reviews of which 23,816 were positive and 8,747 were negative resulting in a rating of 7.2 out of 10. With 1,606 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like DEFCON.
7.2
23,816
8,747
1,606
players
8. Tom Clancy's Ghost Recon® Wildlands
Similarity 45% Create a team with up to 3 friends in Tom Clancy’s Ghost Recon® Wildlands and enjoy the ultimate military shooter experience set in a massive, dangerous, and responsive open world. Tom Clancy's Ghost Recon® Wildlands is a open world, shooter and co-op game developed by Ubisoft Paris, Ubisoft Annecy, Ubisoft Bucharest, Ubisoft Montpellier, Ubisoft Milan, Reflections and Ubisoft Belgrade and published by Ubisoft. Released on March 06th 2017 has received 96,577 reviews of which 77,138 were positive and 19,439 were negative resulting in a rating of 7.9 out of 10. With 1,315 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like DEFCON.
7.9
77,138
19,439
1,315
players
9. GTFO
Similarity 47% GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together. GTFO is a online co-op, horror and co-op game developed and published by 10 Chambers. Released on December 09th 2021 has received 62,097 reviews of which 52,357 were positive and 9,740 were negative resulting in a rating of 8.3 out of 10. With 861 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like DEFCON.
8.3
52,357
9,740
861
players
10. ASKA
Similarity 41% Lay claim to unspoiled lands and pave the way for a fierce Viking tribe. Craft the ultimate settlement solo or together with up to x3 friends. Trust in the Gods and the power of the Eye of Odin and summon intelligent NPC villagers to provide camaraderie and relief from the toils of survival. ASKA is a early access, online co-op and multiplayer game developed by Sand Sailor Studio and published by Thunderful Publishing. Released on June 20th 2024 has received 7,075 reviews of which 5,660 were positive and 1,415 were negative resulting in a rating of 7.8 out of 10. With 828 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like DEFCON.
7.8
5,660
1,415
828
players
Best deals on games like DEFCON on Steam
Discover fantastic savings with the best discounts on a variety of games like DEFCON available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like DEFCON.
1. Starship Troopers: Terran Command
Similarity 43% Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes! Starship Troopers: Terran Command is a strategy, rts and singleplayer game developed by The Artistocrats and published by Slitherine Ltd.. Released on June 16th 2022 has received 10,784 reviews of which 9,461 were positive and 1,323 were negative resulting in a rating of 8.5 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like DEFCON.
8.5
9,461
1,323
-99%
28.99€
0.46€
2. This Means Warp
Similarity 41% It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 627 reviews of which 447 were positive and 180 were negative resulting in a rating of 6.8 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like DEFCON.
6.8
447
180
-99%
19.50€
0.38€
3. Police Stories
Similarity 49% A fresh take on top-down shooters with an emphasis on tactics that forces you to make split second decisions. Neutralize criminals, rescue civilians and defuse bombs in Single Player mode or Co-op. And remember - shooting first is not an option! Police Stories is a action, strategy and co-op game developed and published by HypeTrain Digital. Released on September 19th 2019 has received 8,701 reviews of which 7,406 were positive and 1,295 were negative resulting in a rating of 8.3 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like DEFCON.
8.3
7,406
1,295
-98%
19.99€
0.53€
4. Main Assembly
Similarity 43% You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions. Main Assembly is a 3d, online co-op and co-op game developed by Bad Yolk Games and published by Team17. Released on January 26th 2021 has received 1,314 reviews of which 1,115 were positive and 199 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like DEFCON.
8.1
1,115
199
-98%
19.99€
0.43€
5. Stars End
Similarity 40% Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit. Stars End is a co-op, massively multiplayer and multiplayer game developed by Reverie World Studios and published by indie.io. Released on January 08th 2023 has received 1,392 reviews of which 871 were positive and 521 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like DEFCON.
6.1
871
521
-98%
18.49€
0.44€
6. Blazing Sails
Similarity 41% Fight for survival in Blazing Sails, a fast-paced pirate PvP game! Create your own unique pirate and ship. Band together with other players to command your mighty vessel! Explore different game-modes, maps, weapons, ship types and more while eliminating other crews in epic battles on land and sea! Blazing Sails is a co-op, naval combat and online co-op game developed by Get Up Games and Iceberg Interactive and published by Iceberg Interactive. Released on November 13th 2023 has received 9,710 reviews of which 8,454 were positive and 1,256 were negative resulting in a rating of 8.5 out of 10. Currently offered at a significant 97% discount, this title has earned the #6 position in the best deals for games like DEFCON.
8.5
8,454
1,256
-97%
14.79€
0.59€
7. Frozenheim
Similarity 42% Lead your Viking clan onto unknown shores and carve out a future for your people in the fjords of Frozenheim. Gather resources, expand, and watch your settlement grow to a bustling town that will withstand the harshness of winter and wrath of other clans. Frozenheim is a economy, resource management and co-op game developed by Paranoid Interactive and published by Untold Tales, Hyperstrange and Gamersky Games. Released on June 16th 2022 has received 3,714 reviews of which 2,603 were positive and 1,111 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 97% discount, this title has earned the #7 position in the best deals for games like DEFCON.
6.8
2,603
1,111
-97%
16.99€
0.56€
8. Plunder Panic
Similarity 44% Chaotic Party Arr-cade Action for up to 12 players! Be the first to plunder all the treasure, sink the enemy ship, or defeat their captain. Featuring local & online play, crossplay, 18 stages, 30+ modify-arrs, and a single-player campaign! Plunder Panic is a online co-op, indie and combat game developed and published by Will Winn Games. Released on September 16th 2022 has received 607 reviews of which 510 were positive and 97 were negative resulting in a rating of 7.9 out of 10. Currently offered at a significant 95% discount, this title has earned the #8 position in the best deals for games like DEFCON.
7.9
510
97
-95%
9.75€
0.52€
9. Company of Heroes 2
Similarity 49% Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below. Company of Heroes 2 is a strategy, world war ii and rts game developed by Relic Entertainment and Feral Interactive (Linux) and published by Relic Entertainment, Feral interactive (Mac) and Feral Interactive (Linux). Released on June 25th 2013 has received 109,825 reviews of which 86,713 were positive and 23,112 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 95% discount, this title has earned the #9 position in the best deals for games like DEFCON.
7.8
86,713
23,112
-95%
18.49€
1.02€
10. This Means Warp
Similarity 41% It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a game developed and published by . Released on May 04th 2023 has received 627 reviews of which 447 were positive and 180 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #10 position in the best deals for games like DEFCON.
6.8
447
180
-99%
19.50€
0.38€
Free games like DEFCON on Steam
Check out this fantastic list of free-to-play games like DEFCON you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like DEFCON.
1. Tom Clancy's Rainbow Six® Siege X
Similarity 51% Rainbow Six Siege X is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked and Dual Front game modes with a selection of operators. Tom Clancy's Rainbow Six® Siege X is a fps, pvp and multiplayer game developed by Ubisoft Montreal and published by Ubisoft. Released on December 01st 2015 has received 1,398,584 reviews of which 1,172,854 were positive and 225,730 were negative resulting in a rating of 8.3 out of 10. With 108,174 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like DEFCON.
8.3
1,172,854
225,730
108,174
players
2. World of Warships
Similarity 51% Immerse yourself in thrilling naval battles and assemble an armada of over 600 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players! World of Warships is a free to play, naval combat and action game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 146,552 reviews of which 112,887 were positive and 33,665 were negative resulting in a rating of 7.6 out of 10. Thanks to its free to play tag and a daily player base of 4,236, this game has secured the #2 spot in the ranking of free games like DEFCON.
7.6
112,887
33,665
4,236
players
3. Thunder Tier One
Similarity 51% Thunder Tier One is a realistic top-down shooter where you join an elite special operations team tasked with stopping a dangerous terrorist organization wreaking havoc across the fictional Eastern European country of Salobia. Thunder Tier One is a free to play, online co-op and top-down shooter game developed and published by KRAFTON and Inc.. Released on December 07th 2021 has received 4,735 reviews of which 3,162 were positive and 1,573 were negative resulting in a rating of 6.6 out of 10. Thanks to its free to play tag and a daily player base of 175, this game has secured the #3 spot in the ranking of free games like DEFCON.
6.6
3,162
1,573
175
players
4. War Planet Online: Global Conquest
Similarity 46% Build your army, dominate your region and lead your alliance to conquer the globe! War Planet Online: Global Conquest is a strategy, massively multiplayer and building game developed and published by Gameloft. Released on December 19th 2017 has received 911 reviews of which 579 were positive and 332 were negative resulting in a rating of 6.2 out of 10. Attracting a solid base of 155 players due to its free access, this strategy game has achieved the #4 position in the best free games like DEFCON.
6.2
579
332
155
players
5. Pixel Strike 3D
Similarity 45% Pixel Strike 3D is a Multiplayer First-Person Shooter that features fast-paced gameplay and a wide variety of player customization. Battle friends and foes from all around the world in over 20 unique game modes, with over 70 available weapons. Pixel Strike 3D is a free to play, fps and tactical game developed and published by Vulcron. Released on May 29th 2020 has received 12,603 reviews of which 9,310 were positive and 3,293 were negative resulting in a rating of 7.3 out of 10. The game currently holds the #5 spot among the most played free games like DEFCON.
7.3
9,310
3,293
68
players
6. World War Armies
Similarity 42% World War Armies is the ultimate PvP real-time strategy game. Command advanced war machines and compete for free against other players worldwide. Revolutionary mechanics reduce downtime and focus on direct engagement with the enemy, you get to the fun parts of RTS faster. World War Armies is a rts, pvp and strategy game developed and published by Hypemasters and Inc.. Released on May 02nd 2024 has received 769 reviews of which 479 were positive and 290 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #6 spot among the most played free games like DEFCON.
6.1
479
290
36
players
7. It Takes Two Friend's Pass
Similarity 50% Download Friend's Pass* and play It Takes Two with a friend for free. Just grab a friend who owns the full game, download Friend's Pass for free, and play together! It Takes Two Friend's Pass is a online co-op, co-op and multiplayer game developed by Hazelight Studio and published by Electronic Arts. Released on March 26th 2021 has received 795 reviews of which 703 were positive and 92 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #7 spot among the most played free games like DEFCON.
8.3
703
92
26
players
8. Prison Life
Similarity 45% An online game that you'll play with 3-11 players as a Prisoner or a Guard and will try to escape or prevent escapes. Loot, Craft, and make your way to the exit, or investigate and arrest wanted players as a guard! Prison Life is a multiplayer, free to play and online co-op game developed and published by AO Games. Released on September 23rd 2022 has received 2,844 reviews of which 2,249 were positive and 595 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #8 spot among the most played free games like DEFCON.
7.6
2,249
595
22
players
9. Conqueror's Blade
Similarity 42% Master the art of siege tactics in Conqueror's Blade, a tactical action MMO brought to you by Booming Tech. Create your hero, command medieval units, and ride out for epic online battles in a vast new world. Play for free today! Conqueror's Blade is a medieval, tactical and strategy game developed by Booming Tech and published by Poros Interactive. Released on May 30th 2019 has received 30,134 reviews of which 22,576 were positive and 7,558 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #9 spot among the most played free games like DEFCON.
7.4
22,576
7,558
3
players
10. Epicinium
Similarity 46% Epicinium is a strategy game where nature is a finite resource. No need to wait for your move, thanks to fast, simultaneous turns. Your economy and troops are influenced by the environment and increasingly severe weather effects. Is it worth winning a war when you end up conquering dirt and ash? Epicinium is a turn-based strategy, pvp and military game developed and published by A Bunch of Hacks. Released on October 12th 2020 has received 302 reviews of which 265 were positive and 37 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 DEFCON.
8.1
265
37
1
players