Single-player games like Sector Space
Below are 11 single-player Steam games similar to Sector 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 Sector Space page.
Ranked picks
- 1
Vanguard Galaxy
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Indie and Simulation with Sector Space.
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
- 2
Little-Known Galaxy
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Indie and Adventure with Sector Space.
Join Space Alliance as a new captain-in-training and work with your crew to solve the mysteries of an ancient relic found on the Grey Planet. Little-Known Galaxy is a cozy single-player RPG space adventure full of friendly characters, exploration, crafting, and farming.
- 3
Starground
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Indie and Simulation with Sector Space.
Build a formidable factory and go dungeoning alone or with friends. Solve logic puzzles and automate resource collection and crafting, or venture into dungeons filled with dangers and rewards. Find your own ideal gameplay balance, as any unique path will advance the story!
- 4
TerraTech Worlds
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Indie with Sector Space.
TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment
- 5
Forager
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Indie with Sector Space.
The highly popular and quirky "idle game that you want to actively keep playing". Explore, craft, gather & manage resources, find secrets and build your base out of nothing! Buy land to explore and expand!
- 6
Core Keeper
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Indie with Sector Space.
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.
- 7
The Last Starship
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Indie and Simulation with Sector Space.
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
- 8
No Man's Sky
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Adventure with Sector Space.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 9
Terraria
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Indie with Sector Space.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 10
Kenshi
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Action and Indie with Sector Space.
A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.
- 11
Factorio
Single-player alternative to Sector Space — playable solo, no multiplayer required. Shares Indie and Simulation with Sector 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.