Single-player games like Mountaincore
Below are 13 single-player Steam games similar to Mountaincore, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mountaincore page.
Ranked picks
- 1
Dwarf Fortress
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.
- 2
Prison Architect
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.
- 3
First Feudal
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Become a real medieval feudal lord: start with a small village and build it up into an enormous impenetrable castle. You will have to repel enemy raids: hide behind thick walls, lure your enemies into strategically placed traps, and even lead your loyal peasants into battle.
- 4
Catizens
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Inspired by RimWorld and The Sims, Catizens is a colony management simulation game where you watch over unique cats with quirky personalities, as you help them build and grow their settlement while exploring new lands, facing off against wildlife and overcoming the challenges of each environment.
- 5
Lords and Villeins
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Build a prosperous settlement in a unique simulation of a feudal economy - each family runs their shop, owns their goods, and trades with other villagers in a free market. You will manage the land, build houses, organise events, set taxes, and balance supply and demand while engaging in diplomacy!
- 6
Foundation
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
- 7
Founders' Fortune
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
A fantasy village builder focusing on creative building, colonist psychology and base defense. Handle resources, farming, production, tools, diplomacy, families, trading, defense, and research, as well as the wishes, expectations, thoughts, and equipment of every villager.
- 8
Timberborn
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.
- 9
RimWorld
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 10
Oxygen Not Included
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Indie and Simulation with Mountaincore.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 11
Space Haven
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
- 12
Banished
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland. The townspeople of Banished are your primary resource.
- 13
King under the Mountain
Single-player alternative to Mountaincore — playable solo, no multiplayer required. Shares Strategy and Indie with Mountaincore.
A simulation-based settlement-building strategy game set in a fantasy world - build and grow from a humble colony to control of your own kingdom!