Single-player games like SPACEPLAN
Below are 16 single-player Steam games similar to SPACEPLAN, 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 SPACEPLAN page.
Ranked picks
- 1
Sixty Four
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Casual with SPACEPLAN.
Dive into the world of Sixty Four, where you transform simple machines into a thriving factory.
- 2
A Game About Feeding A Black Hole
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Casual with SPACEPLAN.
A short incremental game about feeding a Black Hole matter by destroying Asteroids, Planets, and Stars.
- 3
Human-powered spacecraft
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual and Indie with SPACEPLAN.
A nostalgia-infused pixel clicker in a comedy wrapper.
- 4
(the) Gnorp Apologue
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual and Indie with SPACEPLAN.
(the) Gnorp Apologue is the journey of the gnorps as you guide them towards their goal of delightfully excessive wealth accumulation.
- 5
Unnamed Space Idle
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual with SPACEPLAN.
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
- 6
Mountain
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual and Indie with SPACEPLAN.
Existential Nature Simulation
- 7
To The Core
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Adventure with SPACEPLAN.
To The Core is an incremental game about extracting and using resources from planets to buy upgrades.
- 8
Solar 2
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Adventure with SPACEPLAN.
Dynamic abstract sandbox universe. Changes and evolves as you do.
- 9
Kittens Game
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual with SPACEPLAN.
Kittens Game is game where you manage a village of kittens as they acquire resources and unlock new technologies. Build the ultimate civilization and bring them to the space!
- 10
Antimatter Dimensions
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Casual with SPACEPLAN.
Earn antimatter through dimensions! Gain Infinite antimatter to collapse the universe!
- 11
Trimps
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual and Indie with SPACEPLAN.
A text-based incremental idle game with a ridiculous amount of unique content. Automate old stuff as you unlock new stuff to keep things interesting for hours and hours, no spam clicking necessary! Trimps is everything you love about your favorite games, distilled to their purest form.
- 12
A Dark Room ®
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie with SPACEPLAN.
Critically acclaimed, minimalist text-based rpg. Come light the fire.
- 13
The Factory
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Casual with SPACEPLAN.
The Factory is a first-person, factory sim game with machine purchasing, upgrading, and building expansion. Use income from crafted products to buy and upgrade tools and buildings. Upgrade your factory layout to gain infinite wealth while trying not to lose money from damaging products.
- 14
Cell to Singularity - Evolution Never Ends
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual with SPACEPLAN.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 15
Soda Dungeon
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Casual with SPACEPLAN.
Pop the top on some legendary action with Soda Dungeon, the fresh and fizzy hit mobile RPG adventure, now available on your desktop! Manage your team as you raid the local dungeons, upgrade your tavern, and attract new party members. Gold, legendary items, and more await you.
- 16
Mosaic
Single-player alternative to SPACEPLAN — playable solo, no multiplayer required. Shares Indie and Adventure with SPACEPLAN.
Enter a world that’s utterly surreal and eerily familiar. Escape the mundanity of your existence in an experience that will stay with you. Mosaic is a narrative-driven modern adventure game with a story that lasts about 2-3 hours.