Single-player games like Deisim
Below are 11 single-player Steam games similar to Deisim, 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 Deisim page.
Ranked picks
- 1

WorldBox - God Simulator
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Indie and Simulation with Deisim.
WorldBox is the ULTIMATE god simulator and sandbox game. A petri dish for your fantasy civilizations. Create your own world or destroy it using many powers. Watch civilizations grow, form kingdoms, colonize new lands, sail to far continents, wars to ignite, empires to fall and towns to burn!
- 2

Townsmen VR
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Townsmen VR uses the exciting possibilities of virtual reality to further enhance the classic city building game with entirely new gameplay experiences and interactive mechanics. It combines elements of a God-game simulation and a classic building game with the interactive possibilities of VR.
- 3

The Universim
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Jump straight into managing your own planets as you guide a civilization through the ages. Build the ultimate empire in The Universim, a new breed of God Game in development by Crytivo.
- 4

Fata Deum - The God Sim
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Simulation with Deisim.
Inspired by the god games of old, Fata Deum lets you mold settlements and townsfolk in your image. Will you raise the settlements to splendor, or spur them on to violent debauchery and demons? Watch as a living world grows under your whims.
- 5

Ruinarch
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Ruinarch is an evil god simulator and sandbox game where you mess with people’s lives for hilarious results! Make them vampires, werewolves or bard haters and cackle as the drama unfolds. Once you’re done, unleash a malicious buffet of spells and custom plagues to wipe them out and start anew!
- 6

Ecosystem
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Create virtual lifeforms whose development is shaped by a deep simulation of evolution. Guide them as they fight, mate, and adapt to the environment you have built. All the creatures in the trailer evolved on their own in the game!
- 7

Foundation
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
- 8

These Doomed Isles
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Harvest cards to raise land from the sea, build settlements and rain fire upon invaders in this survival city-builder with roguelike deckbuilding mechanics. Choose from 4 gods with unique cards, playstyles and abilities to lead their civilisations to victory in strategic run-based gameplay!
- 9

Townsmen
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Simulation with Deisim.
From humble backwater to medieval metropolis - build the city of your dreams!
- 10

Populous™: The Beginning
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy with Deisim.
In the third part of the Populous series, you control your shaman and the tribe of her followers in a difficult quest to conquer all 25 planets of a star system and ascend to godhood.
- 11

Underworld Overseer
Single-player alternative to Deisim — playable solo, no multiplayer required. Shares Strategy and Indie with Deisim.
Build your dungeon, command demons, set traps, and slay invading adventurers with powerful spells.