Single-player games like Stacks:Space!
Below are 14 single-player Steam games similar to Stacks:Space!, 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 Stacks:Space! page.
Ranked picks
- 1
Star Boss
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Make robots and spaceships,explore the space,fight with aliens.
- 2
Deep Space Treasure
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Simulation with Stacks:Space!.
This is a 2D side-scrolling sandbox survival game built on pure procedural generation and mining. There is no map and no hand-holding. Just your rocket, your drill, and an infinite universe. Mine resources, craft gear, and build bases while facing endless roguelike survival challenges.
- 3
Hexfactory
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Build cities and factories in an infinite Hex World. Explore more tiles. Balance your city's production and consumption, attract more citizens of different classes, research new technologies and build more factories and cities.
- 4
Stellar Harvest
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Harvest energy across the solar system. Build generators on alien worlds, prestige for Dark Energy, and construct a Dyson Sphere around the Sun. Ten planets. Infinite power. One way home.
- 5
Starbase Gunship
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Simulation with Stacks:Space!.
Starbase Gunship places you in the seat of a weapons officer on a state-of-the-art Gunship as you defend a remote outpost from an Alien invasion fleet. With access to laser cannons, missiles, miniguns and nuclear warheads, you are the last line of defense between humanity and the alien invaders.
- 6
Space.iZ
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Build your interstellar empire. Colonize planets, mine resources, grow your population and defend your worlds against enemy attacks. A deep space strategy experience.
- 7
Asteroid Colony
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
In this real time strategy city builder game you will help humanity in reaching beyond earth by establishing a permanent and thriving settlement in the asteroid belt. Settling in space comes with enormous challenges and dangers, which you will have to guide your people through
- 8
Rebots
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Rebots is a first-person automation game with an expansive universe to explore. Using intelligent(ish) rebots, you can gather resources, terraform planets, and scan all of the things. Traverse the galaxy in the name of space capitalism!
- 9
Slay the Spire
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie with Stacks:Space!.
We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!
- 10
Monster Train
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required.
Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time.
- 11
Stacklands
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Stacklands is a village builder where you stack cards to collect food, build structures, and fight creatures. 🃏 For example, dragging a Villager card on top of a Berry Bush card will spawn Berry cards which the villagers can eat to survive. 🃏 Play your cards right and expand your village!
- 12
Factorio
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
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.
- 13
Cultist Simulator
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Simulation with Stacks:Space!.
Seize forbidden treasures. Summon alien gods. Feed on your disciples. Cultist Simulator is a game of apocalypse and yearning. Play as a seeker after unholy mysteries, in a 1920s-themed setting of hidden gods and secret histories.
- 14
Stacks:Jungle!
Single-player alternative to Stacks:Space! — playable solo, no multiplayer required. Shares Indie and Free To Play with Stacks:Space!.
Stacks:Jungle is an engaging adventure card game set in the lush heart of the jungle. Unlock new cards with booster packs, combine them to uncover craft recipes, build amazing structures, venture into uncharted territories, make new friends, discover hidden treasures, and so much more!