Single-player games like ZeroSpace
Below are 8 single-player Steam games similar to ZeroSpace, 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 ZeroSpace page.
Ranked picks
- 1
Calyx
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy and Early Access with ZeroSpace.
A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?
- 2
Here Comes The Swarm
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy and Indie with ZeroSpace.
Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?
- 3
Company of Heroes 3
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Action and Strategy with ZeroSpace.
Company of Heroes 3 combines heart-pounding combat with deeper strategic choices in a stunning Mediterranean theatre of war. In Company of Heroes 3, every battle tells a story...what's yours?
- 4
Corsair Cove
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy and Simulation with ZeroSpace.
Build a sprawling pirate haven, raise a fleet to explore the high seas, and take on the Crown to keep the Age of Piracy alive! From ale to flintlock pistols, and from scallywags to swashbucklers, you’ll need to manage complex production chains and govern a rowdy crew to reign supreme over the seas!
- 5
Circle Empires 2
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy and Indie with ZeroSpace.
CIRCLE EMPIRES returns! Expand your empire, circle by circle, in this fast-paced follow-up to the hit RTS. Gather resources, build armies, and defeat bosses (or your friends) in a world that changes with every game. With unique units and biomes, it's an addictive battle of wits and tactics.
- 6
Tempest Rising
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Action and Strategy with ZeroSpace.
Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.
- 7
Warhammer 40,000: Dawn of War - Definitive Edition
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy with ZeroSpace.
Warhammer 40,000: Dawn of War - Definitive Edition is the ultimate Dawn of War experience, featuring the original Dawn of War and all its expansions, along with enhanced visuals, an improved camera, and 64-bit platform support.
- 8
Stronghold Crusader: Definitive Edition
Single-player alternative to ZeroSpace — playable solo, no multiplayer required. Shares Strategy and Simulation with ZeroSpace.
Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.