Single-player games like Mars Base Alley
Below are 9 single-player Steam games similar to Mars Base Alley, 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 Mars Base Alley page.
Ranked picks
- 1
Harvesters
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
A short incremental game about gathering resources on different planets. Upgrade the harvesters, unlock new buildings, and unlock new ways to gather resources! It's all about watching lil people do their thing.
- 2
Ants Took the Kitchen
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
In Ants Took the Kitchen, you lead a small colony of ants determined to take over the kitchen. Collect crumbs, carry increasingly larger pieces of food, buy upgrades for each area, automate the collection process, and turn a simple corner of the floor into a hungry swarm.
- 3
Surviving Mars
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Simulation with Mars Base Alley.
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.
- 4
Irongrim Tower
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
Tower defense meets city building in a grimdark sci-fi world. Build vertically, manage resources, defend against alien hordes, and command machine priests in humanity's last stronghold.
- 5
The Great Fluctus
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie with Mars Base Alley.
Assist your astronaut crew as they survive and start a space colony, evolving it into a unique settlement of your choice. The living voxel world, with its striking visuals, offers more than sandbox survival - trade, explore, and immerse yourself in the weirdest alien culture ever!
- 6
Bobbitz
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
A cozy underground colony sim where nothing can ever go wrong. You never dig, you give the orders, and the Bobbitz do the rest. Carve a home out of the dark, raise a town of little burrowers, and light the deep together. No death, no fail states. Dig at your own pace.
- 7
Stellar Settlers: Space Base Builder
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
- 8
Mars Clicker
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Base Alley.
Click crystals until they crack. Automate the grind. Reset everything on purpose for a permanent power spike. Mars Clicker is an idle clicker / incremental game where every prestige run makes the next one faster — and ACE will remind you it's for your own efficiency.
- 9
Yokai Survivor
Single-player alternative to Mars Base Alley — playable solo, no multiplayer required. Shares Indie and Casual with Mars Base Alley.
Yokai Survivor is a single-player survivor-like auto-shooter. Face relentless waves of twisted yokai in a cursed underworld, harvest precious fruits, and master powerful ninjutsu skills to turn the tide. It's one ninja against the underworld!