Single-player games like Castle Story
Below are 9 single-player Steam games similar to Castle Story, 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 Castle Story page.
Ranked picks
- 1

TimbrianGuard
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
Satus (Latin for beginning/sowing) is a voxel-based sand box colony management sim. Players will be tasked with overseeing their colony as they fight for survival while expanding their colony's influence, creating new outposts, and attracting new colonists in the process.
- 2

Colony Survival
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
Colony Survival is a unique first-person strategy game developed by a two-man team. Build your own colony in a voxel world. Command guards, farmers, miners and other colonists. Defend your colony against the horde of monsters that attacks every night!
- 3

Stonehearth
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
Pioneer a living world full of warmth, heroism, and mystery. Help a small group of settlers build a home for themselves in a forgotten land. Establish a food supply, build shelter, defend your people, monitor their moods, and find a way to grow and expand, facing challenges at every step.
- 4

Night of the Dead
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Indie and Simulation with Castle Story.
'Night of the Dead' is an open-world game that combines elements of exploration, tower defense, survival, and crafting. Traverse a world dominated by zombies while collecting various resources and powerful equipment. Build a fortress to survive the hordes of zombies that swarm every night!
- 5

Dig or Die
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.
- 6

CryoFall
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
CryoFall is a sci-fi colony simulation survival game set on a forgotten planet in a distant future. Master technology, agriculture, trading, industry, cybernetics, exploration, and more!
- 7

Space Engineers
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
- 8

Satisfactory
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Story.
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!
- 9

Mirador
Single-player alternative to Castle Story — playable solo, no multiplayer required. Shares Indie with Castle Story.
Mirador is an online co-op hack-and-slash boss fighting game where the bosses you encounter are created by rival players! Go on arena-runs solo or with friends, find loot to create your own Sentinels and send them online to fight other players around the clock!