Top-Rated Free Colony Sim Games on Steam

10 free Colony Sim games with 500+ reviews and a 70%+ positive rating, newest first.

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Revolution Idle - Players say: Upgrade spinning circles, grow ever-larger numbers, and use prestige resets and automation to push through deeper idle-game systems. Players like: Layered Prestige Progression · Satisfying Number Growth · Automation And Macros ·
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Revolution Idle is a free idle incremental game with offline progress, prestige layers, and endless automation. Start simple, reach infinity and go further.

Diplomacy is Not an Option: Shareware - Players say: As Duncan Ironbrow, build a medieval settlement, grow its economy and army, and hold your castle against enemy waves. Players like: City-Building Defense · Tactical Base Planning · Hard-Won Victories ·
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Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.

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Apr 30, 2025
92% 👍
of 826
Pawns of War - Players say: Build and equip a squad of armed Pawns, then defend a base through auto-battles and grid-based tactical missions. Players like: Detailed Pixel Art · Weapon Customization · Squad and Weapon Variety ·
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Dark parallel world in which humanity has destroyed itself. And only small colonies have survived the last centuries holding on to power at the expense of the totalitarian regime of government. You were thrown here after your death, is this how you were given a second chance?

Mini Settlers: Prologue - Players say: Build island settlements, connect factories by roads, trains and ports, and balance deliveries to meet residents’ needs. Players like: Simple City Building · Resource Logistics · Relaxing Minimalist Style ·
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Mini Settlers: Prologue is a free version of Mini Settlers. In this minimalist city builder, settle islands, construct cities, and design efficient logistic networks to fulfill your buildings' needs and fuel population growth to adventure into new worlds.

United Penguin Kingdom: Huddle up - Players say: Build a penguin settlement, manage its residents’ needs and resources, and defend it from killer whales and food-stealing seals. Players like: Charming Penguin Setting · Settlement Building · Approachable Management ·
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This free version of the United Penguin Kingdom covers the content from one year of in-game time. A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales.

Oxygen: First Breath - Players say: Build around the Oxygen Center, manage workers and supplies, and protect a settlement from deadly weather and toxic cracks. Players like: Distinct Oxygen Premise · Tense Survival Management · Atmospheric Setting ·
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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!

Hell Architect: Prologue - Players say: Manage a cartoon underworld colony: build facilities, gather resources, meet sinners’ needs, and devise their punishments. Players like: Varied Torture Options · Dark-Humor Art · Intuitive Controls ·
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Hell Architect is a hell colony sim. Build and manage your hell. Take care of the sinners with funny cartoon-style tortures, fill their needs, develop buildings, gather resources, grow your population. Prologue is a free standalone version of the game 'Hell Architect'.

My Singing Monsters - Players say: Breed and collect sound-making monsters, then build islands where their voices combine into evolving musical tracks. Players like: Layered Island Songs · Distinctive Monster Designs · Breeding Discoveries ·
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Dive into the Musical World of My Singing Monsters! Breed them, feed them, listen to them sing! Breed & collect a menagerie of Monsters, each a living instrument! Build your paradise across 35+ Islands, customize your world, and enjoy endless music! There's never a dull moment in the Monster World!

Garbage: Hobo Prophecy - Players say: Manage a homeless man’s survival, build a camp, and prepare a team for automatic fights in this darkly comic prologue. Players like: Comic-Book Art · Urban Atmosphere · Crafting And Choices ·
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Experience the struggle which a homeless man goes through in a humorous manner. Primitive elements of contemporary life that we take for granted, such as staying warm, well-nourished, and hygienic, will become an issue.

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Jan 28, 2021
73% 👍
of 1.4k
Kingdom: Classic - Players say: Ride a horse across a procedurally generated realm, build with coins by day, and defend your kingdom from night raids. Players like: Simple Strategy Loop · Pixel Art and Music · Tense Night Raids ·
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Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.