Free to Play City Builder Games on Steam
Check out this fantastic list of free-to-play city builder games you can enjoy on Steam right now, updated on July 31st 2025. Looking for even more free titles? Explore the complete list of the best free to play city builder games.
Lists & Categories
1. Realm Grinder
Grow your realm, build alliances, and explore one of the deepest idle RPGs ever! Realm Grinder is a game developed and published by . Released on June 15th 2017 has received 7,102 reviews of which 6,185 were positive and 917 were negative resulting in a rating of 8.5 out of 10. The game has hit the top spot as the #1 most played city builder game, thanks to its 524 peak concurrent players over the last day.
8.5
6,185
917
524
players
2. Galaxy Life
The universe is full of Starlings, tiny orange aliens that want to take over the galaxy. Create your own space colony, fight epic battles and discover new planets. Train your soldiers, develop your technology and create unimaginable gadgets. Enjoy this huge social game with friends! Galaxy Life is a game developed and published by . Released on August 31st 2022 has received 8,084 reviews of which 7,391 were positive and 693 were negative resulting in a rating of 8.9 out of 10. While seeing 328 players online at once in the last 24 hours, this game is currently ranked #2 among city builder games based on player count.
8.9
7,391
693
328
players
3. Stronghold Kingdoms
A massively multiplayer grand strategy game, Stronghold Kingdoms is about forging alliances, political mind games, city-building and castle sieges with thousands of other players! Stronghold Kingdoms is a game developed and published by . Released on February 27th 2012 has received 9,341 reviews of which 5,975 were positive and 3,366 were negative resulting in a rating of 6.3 out of 10. While seeing 306 players online at once in the last 24 hours, this game is currently ranked #3 among city builder games based on player count.
6.3
5,975
3,366
306
players
4. Bloons Monkey City
Create, upgrade, and customize your very own Bloons Monkey City in this groundbreaking blend of city building and tower defense awesomeness! Bloons Monkey City is a game developed and published by . Released on April 10th 2020 has received 6,222 reviews of which 5,676 were positive and 546 were negative resulting in a rating of 8.8 out of 10. With 208 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played city builder games.
8.8
5,676
546
208
players
5. Global City
Become the mayor and build the city of your dreams! In this game, anything is possible. Whatever you can imagine in a city-building and development simulator, you can do. Start from the very beginning and unlock new possibilities for developing your city in Global City! Global City is a game developed and published by . Released on November 30th 2021 has received 1,215 reviews of which 849 were positive and 366 were negative resulting in a rating of 6.8 out of 10. With 146 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played city builder games.
6.8
849
366
146
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 game developed and published by . 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 130 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played city builder games.
7.6
1,158
312
130
players
7. Egg Surprise
A fun clicker with economic simulation in the penguin kingdom. Obtain rare collections, venture into dangerous dungeons, and build your own civilization! Egg Surprise is a game developed and published by . Released on June 20th 2024 has received 1,205 reviews of which 821 were positive and 384 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #7 spot among the most played city builder games.
6.6
821
384
38
players
8. 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 game developed and published by . 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 #8 spot among the most played city builder games.
6.1
415
247
32
players
9. Planet S
Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction. Planet S is a game developed and published by . Released on October 28th 2023 has received 2,630 reviews of which 2,407 were positive and 223 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #9 spot among the most played city builder games.
8.8
2,407
223
13
players
10. Oxygen: First Breath
This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running! Oxygen: First Breath is a game developed and published by . Released on October 07th 2022 has received 1,594 reviews of which 1,432 were positive and 162 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #10 spot among the most played city builder games.
8.6
1,432
162
6
players
More City Builder & Related Games
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