Online co-op City Builder games

Every online co-op City Builder game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 1–10 of 133 games matching City Builder · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
67% of 43

FrontWars is a free-to-play multiplayer strategy game where hundreds of players battle for global domination! Build alliances, command armies, grow your economy, and unleash nuclear strikes to wipe your rivals off the map. No pay-to-win: only the strongest will rule the world.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 2

Every level brings an interesting puzzle to solve. Place and merge tiles using patterns that you’ll discover along the way. Plan ahead, find optimal solutions, and earn rewards that you’ll use to build your Homestead.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
100% of 3

Mahjong solitaire meets a casual city builder story game in Ancient Rome. Build the city to restore it to glory. Solve tile-matching mahjong solitaire puzzles, unlock game-enhancing boosts, and tackle historical Roman city-building tasks for relaxing exploration and adventure in Emperor of Mahjong®.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
69% of 43

Sigma World Online - is an online sandbox with a huge world from many star systems. Choose who to be: space explorer, miner, merchant, farmer, culinary specialist, scientist, builder or hunter, or build your empire.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
0% of 1

International Trading League is a massively multiplayer economic simulation where you build an industrial empire across the globe. Produce, trade, and dominate markets in real-world cities.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
40% of 60

Tired of repetitive farm sims and basic plane games? Put your farm on hold. Start building a tiny town and transform it into a massive megapolis with a world-class modern airport! We constantly update the game to ensure you are always engaged—both on the ground and in the air.

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$
Released
Price
$ · Cheap
Players
👥 2–4 players
Reviews
100% of 3

Cute cats, chaotic moves, big plans. Meow Box City is a multiplayer, strategy board game about building influence before local elections. Collect cards, place buildings, balance satisfaction, population, income, and sabotage rivals to win at the ballot box.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
86% of 73

Build your dream city from scratch in this sandbox tycoon: start by working or gathering resources, trade businesses and real estate based on market demand, expand your land, and grow your empire—all while surviving and stacking up cold hard cash from your strategic moves.

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