Single-player games like Mermaid Colony
Below are 12 single-player Steam games similar to Mermaid Colony, 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 Mermaid Colony page.
Ranked picks
- 1
Dwarf Fortress
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Mermaid Colony.
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
Endzone - A World Apart
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Mermaid Colony.
Endzone is a post-apocalyptic survival city builder, where you start a new civilization with a group of people after an ecological disaster. Build them a new home and ensure their survival in a shattered world, threatened by constant radiation, toxic rain, sandstorms and droughts.
- 3
Against the Storm
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Simulation with Mermaid Colony.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
- 4
Workers & Resources: Soviet Republic
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Simulation with Mermaid Colony.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
- 5
Judgment: Apocalypse Survival Simulation
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Mermaid Colony.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
- 6
Surviving Mars
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Simulation with Mermaid Colony.
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
MachiaVillain
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Mermaid Colony.
Machiavillain is an evil mansion management and strategy game, inspired by Dungeon Keeper, Prison Architect and all the horror movie clichés! Build your own manor, raise your monsters, set up your traps, and exterminate your victims. But to gain reputation you'll have to slay by the horror movie rules!
- 8
Foundation
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Mermaid Colony.
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
- 9
The Cat Games
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Indie and Simulation with Mermaid Colony.
Do you like cats? Then this is the purrfect game for you!
- 10
Voodoo Garden
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Indie and Simulation with Mermaid Colony.
Welcome to the Voodoo Garden! You're owner of a little hut in a bustling swamp. With the help of little spirits you can earn powers and gold by producing various voodoo supplies.
- 11
Hieroglyphika
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Strategy with Mermaid Colony.
Open the gate to the egyptian underworld! Hieroglyphika is a roguelike game completely without text but with pictograms.
- 12
Puzzle Dating
Single-player alternative to Mermaid Colony — playable solo, no multiplayer required. Shares Indie and Simulation with Mermaid Colony.
Hello! I'm a matchmaking game.