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Check out this fantastic list of free-to-play building games you can enjoy on Steam right now, updated on September 08th 2026. Looking for even more free titles? Explore the complete list of the best free to play building games on Steam.
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1. 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. The game has hit the top spot as the #1 most played building game, thanks to its 35,007 peak concurrent players over the last day.
8.6
149,064
21,663
35,007
players
2. Muck
Muck is a survival-roguelike. Collect resources, find items & build a base to survive for as long as you can. Muck is a survival, multiplayer and crafting game. Released on June 05th 2021 has received 184,624 reviews of which 172,256 were positive and 12,368 were negative resulting in an impressive rating of 9.2 out of 10. While seeing 733 players online at once in the last 24 hours, this game is currently ranked #2 among building games based on player count.
9.2
172,256
12,368
733
players
3. Resonite
Enter a novel digital universe with infinite possibilities. Whether you resonate with people around the world in a casual conversation, playing games and socializing or you riff off each other when creating anything from art to programming complex games, you'll find your place here. Resonite is a early access, vr and sandbox game. Released on October 06th 2023 has received 1,596 reviews of which 1,284 were positive and 312 were negative resulting in a rating of 7.7 out of 10. While seeing 210 players online at once in the last 24 hours, this game is currently ranked #3 among building games based on player count.
7.7
1,284
312
210
players
4. Infinitode 2 - Infinite Tower Defense
Infinitode 2 - a strategy in the Tower Defense genre, in which the player will have to build towers to protect his base from endless waves of enemies. The game features huge maps, lots of towers, resource miners, upgrade tree and map editor. Infinitode 2 - Infinite Tower Defense is a level editor, tower defense and building game. Released on May 06th 2021 has received 3,674 reviews of which 3,354 were positive and 320 were negative resulting in a rating of 8.8 out of 10. With 154 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played building games.
8.8
3,354
320
154
players
5. War Planet Online: Global Conquest
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. 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. With 135 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played building games.
6.2
579
332
135
players
6. Zoo 2: Animal Park
Zoo 2: Animal Park – Take care of wild and tame zoo animals in this animal game! Zoo 2: Animal Park is a casual, building and city builder game. Released on August 24th 2020 has received 1,470 reviews of which 1,158 were positive and 312 were negative resulting in a rating of 7.6 out of 10. With 101 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played building games.
7.6
1,158
312
101
players
7. Kingdom: Classic
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic. Kingdom: Classic is a strategy, singleplayer and simulation game. Released on October 21st 2015 has received 22,088 reviews of which 20,023 were positive and 2,065 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #7 spot among the most played building games.
8.9
20,023
2,065
60
players
8. SpellForce 3 Versus Edition
The SpellForce 3: Versus Edition gives you the chance to enter the battlefields of Eo for free, letting you test your RTS skills against AI opponents or even other human players. SpellForce 3 Versus Edition is a strategy, rpg and building game. Released on November 03rd 2020 has received 1,505 reviews of which 1,132 were positive and 373 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #8 spot among the most played building games.
7.2
1,132
373
58
players
9. My Free Zoo
A small zoo needs your help! As the new manager, it's your job to boost business. Design the zoo of your dreams. From wolves and polar bears all the way to prehistoric beasts – the further you progress in the game, the more exotic the animals you'll be able to keep in your zoo. Play now and save the zoo! My Free Zoo is a casual, simulation and building game. Released on November 28th 2017 has received 662 reviews of which 415 were positive and 247 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #9 spot among the most played building games.
6.1
415
247
40
players
10. Cubic Castles
Your blocks, your castle, your world! Build anything you can dream up and explore with other players! Cubic Castles is a mini-MMO that combines the best of block-building and 3D platform action! Create fantastic parkour challenges, explore worlds made by other players, or even make friend! Cubic Castles is a open world survival craft, building and multiplayer game. Released on August 13th 2014 has received 4,280 reviews of which 3,172 were positive and 1,108 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #10 spot among the most played building games.
7.2
3,172
1,108
25
players
More Building & Related Games
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