Single-player games like Mutant Fish Lab
Below are 8 single-player Steam games similar to Mutant Fish Lab, 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 Mutant Fish Lab page.
Ranked picks
- 1
The Bibites: Digital Life
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Indie and Simulation with Mutant Fish Lab.
Explore real digital life in The Bibites! Play god by guiding your bibites on their evolutionary journey or engineer your own. Analyze their Neural Network brains and genetic information as they adapt to their environments. Save your favorites and test their strength in Challenge Mode!
- 2
Relictor
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Action and Strategy with Mutant Fish Lab.
Relictor is a strategy game set in a post-apocalyptic world. Manage a mobile base. Create AI-driven modules like tanks and gliders for exploration, resource gathering, and tactical battles. Survive, trade, and uncover mysteries in a dangerous world.
- 3
FISHERY
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Indie with Mutant Fish Lab.
Fishery is a stylized aquarium simulation game. Harness your creativity to build and maintain beautiful aquatic habitats. Then relax and watch your beautiful fish enjoy their home.
- 4
Monster Lab Simulator
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Indie with Mutant Fish Lab.
Ready to become a mad scientist? Synthesize, evolve, and command an army of unique creatures in your own lab. Manage your laboratory, master genetic essences, and dominate the battle arena in this deep creature collection simulator!
- 5
Mistward
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Indie with Mutant Fish Lab.
Mistward is a survival city-builder set on a mysterious island enshrouded in a poisonous mist! Create light sources to keep the mist at bay, build houses and command humans to gather resources. Explore the island and find a way out!
- 6
Random Legion
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Simulation with Mutant Fish Lab.
This is a auto battler game with both casual and strategic attributes.Players will take on the role of the leader, expanding the team, learning talents and skills, strengthening equipment, transforming soldiers and other ways to combat power, breaking through random levels, ultimately to win game.
- 7
Terra Firma 2
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Indie with Mutant Fish Lab.
Shape breathtaking worlds in Terra Firma 2, a vast simulation where your creations evolve through the forces of nature. Sculpt the land, then watch as weather, erosion, and life itself transform your world into a dynamic, living ecosystem- right down to every plant and creature.
- 8
Solar Expanse - Space Exploration Manager
Single-player alternative to Mutant Fish Lab — playable solo, no multiplayer required. Shares Strategy and Indie with Mutant Fish Lab.
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.