Single-player games like One More Island
Below are 16 single-player Steam games similar to One More Island, 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 One More Island page.
Ranked picks
- 1

Founders' Fortune
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
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.
- 2

Lords and Villeins
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
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!
- 3

First Feudal
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
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

Anno 1800
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you.
- 5

Clanfolk
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
- 6

Surviving Mars
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 7

Frostpunk
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?
- 8

Whiskerwood
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
- 9

Prison Architect
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.
- 10

Satisfactory
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 11

Factorio
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 12

Tropico 6
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
El Presidente is back! Prove yourself once again as a feared dictator or peace-loving statesman on the island state of Tropico and shape the fate of your very own banana republic through four distinctive eras.
- 13

Sky Settlers
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
Sky Settlers is a minimalistic city building card game in which you build on islands in the sky and encounter different events, disasters and much more. Use different cards, complete quests and unlock new tiles as you progress.
- 14

The Settlers: New Allies
Single-player alternative to One More Island — playable solo, no multiplayer required.
The Settlers®: New Allies is a strategy game with an in-depth build-up experience and real-time strategic battles.
- 15

Tropico 4
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
The world is changing and Tropico is moving with the times - geographical powers rise and fall and the world market is dominated by new players with new demands and offers - and you, as El Presidente, face a whole new set of challenges.
- 16

RimWorld
Single-player alternative to One More Island — playable solo, no multiplayer required. Shares Simulation with One More Island.
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.