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Check out this fantastic list of free-to-play simulation games you can enjoy on Steam right now, updated on September 21st 2026. Looking for even more free titles? Explore the complete list of the best free to play simulation games on Steam.
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1. War Thunder
War Thunder is the most comprehensive free-to-play, cross-platform, MMO military game dedicated to aviation, armoured vehicles, and naval craft, from the early 20th century to the most advanced modern combat units. Join now and take part in major battles on land, in the air, and at sea. War Thunder is a simulation, vehicular combat and combat game. Released on August 15th 2013 has received 757,086 reviews of which 484,469 were positive and 272,617 were negative resulting in a rating of 6.4 out of 10. The game has hit the top spot as the #1 most played simulation game, thanks to its 95,372 peak concurrent players over the last day.
6.4
484,469
272,617
95,372
players
2. The Sims 4
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more. The Sims 4 is a life sim, character customization and building game. Released on June 18th 2020 has received 170,727 reviews of which 149,064 were positive and 21,663 were negative resulting in a rating of 8.6 out of 10. While seeing 32,744 players online at once in the last 24 hours, this game is currently ranked #2 among simulation games based on player count.
8.6
149,064
21,663
32,744
players
3. Revolution Idle
Revolution Idle is a free idle incremental game with offline progress, prestige layers, and endless automation. Start simple, reach infinity and go further. Revolution Idle is a incremental, idler and casual game. Released on May 01st 2025 has received 12,358 reviews of which 10,709 were positive and 1,649 were negative resulting in a rating of 8.5 out of 10. While seeing 8,087 players online at once in the last 24 hours, this game is currently ranked #3 among simulation games based on player count.
8.5
10,709
1,649
8,087
players
4. Aimlabs
Aimlabs is the aim trainer of choice for over 50 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 fps, shooter and simulation game. 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. With 7,147 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played simulation games.
9.3
79,517
4,815
7,147
players
5. Supermarket Together
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action! Supermarket Together is a simulation, online co-op and multiplayer game. Released on August 09th 2024 has received 67,435 reviews of which 63,994 were positive and 3,441 were negative resulting in an impressive rating of 9.3 out of 10. With 4,554 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played simulation games.
9.3
63,994
3,441
4,554
players
6. Cell to Singularity - Evolution Never Ends
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap. Cell to Singularity - Evolution Never Ends is a clicker, simulation and science game. Released on November 03rd 2021 has received 23,690 reviews of which 21,284 were positive and 2,406 were negative resulting in a rating of 8.8 out of 10. With 4,242 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played simulation games.
8.8
21,284
2,406
4,242
players
7. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power. Unnamed Space Idle is a idler, casual and incremental game. Released on July 27th 2023 has received 4,448 reviews of which 4,118 were positive and 330 were negative resulting in a rating of 8.9 out of 10. With 3,597 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played simulation games.
8.9
4,118
330
3,597
players
8. PC FISH: Taskbar Aquarium
Raise, Collect, Trade! Discover rare fish, grow your collection, and build a living aquarium right on your desktop. PC FISH: Taskbar Aquarium is a simulation, idler and creature collector game. Released on August 14th 2026 has received 390 reviews of which 319 were positive and 71 were negative resulting in a rating of 7.7 out of 10. With 2,354 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played simulation games.
7.7
319
71
2,354
players
9. Fishing Planet
Fishing Planet® is a highly realistic first-person online multiplayer fishing simulator. Developed by avid fishing enthusiasts to bring you the full thrill of actual angling on your PC. Free-to-Play and just a download away! Fishing Planet is a fishing, multiplayer and simulation game. Released on August 28th 2017 has received 65,699 reviews of which 57,004 were positive and 8,695 were negative resulting in a rating of 8.6 out of 10. With 2,197 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played simulation games.
8.6
57,004
8,695
2,197
players
10. Firestone Idle Clicker Online RPG
Your heroes never stop fighting. Build an unstoppable team in a fantasy idle RPG with AFK progression and offline rewards. Collect heroes and powerful gear, master formations, defeat epic bosses, and return to bigger rewards and endless incremental growth. Firestone Idle Clicker Online RPG is a idler, clicker and rpg game. Released on April 01st 2024 has received 6,292 reviews of which 4,891 were positive and 1,401 were negative resulting in a rating of 7.6 out of 10. With 1,680 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played simulation games.
7.6
4,891
1,401
1,680
players
More Simulation & Related Games
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