Single-player games like Ants in Space!
Below are 8 single-player Steam games similar to Ants in 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 Ants in Space! page.
Ranked picks
- 1

TFF: The Final Frontier
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
The Final Frontier is a game about star battles and meaning of freedom. It’s a fascinating journey through the endless, procedurally generated space in a universe where you struggle for freedom taking a role of the rebel leader.
- 2

Spin Tactics
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
A tactical roguelike where you rig the slot machine. Everything on the board is yours to change, and a good run turns a lucky board into an engine that does not need luck. No real-money gambling, no microtransactions.
- 3

Kill the Thing
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
Kill The Thing is a challenging roguelike turn-based tactical RPG. Keep the corruption under control while searching for its origin. Undertake missions across four distinct regions, targeting key resources, upgrading your base, and building your roster of heroes. For the final confrontation.
- 4

Our Fleet Is In Orbit
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
A single-player space-strategy roguelite about reconquering a shattered empire across a procedurally generated galaxy. Plan fleet battles that unfold on your orders, and drive ground invasions front by front across the planet below. Every ship, crew, and army you lose is gone for good.
- 5

Continuum
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
A generation ship roguelite where no one aboard survives the journey. Travel the stars one world at a time as each generation shapes your ship and writes a new chapter in the chronicle.
- 6

Boiler & Blood
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
Build and command a dieselpunk war train, manage its crew, and wield forbidden sorcery in a real-time-with-pause tactical roguelite. Destroy the enemy command train before the pursuing army catches you.
- 7

Submarine Homesick Blues
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
A real-time submarine management and survival game with tactical pause, where you manage crew, systems, and resources under constant pressure.
- 8

Galactic Simulator2: Stargate
Single-player alternative to Ants in Space! — playable solo, no multiplayer required. Shares Strategy with Ants in Space!.
Galactic Simulator 2: Stargate is a roguelite simulation game inspired by the Fermi Paradox and the Great Filter. Pilot your ship, gather resources, build stargates, and discover other civilizations as you explore an ever-evolving galaxy.