Single-player games like Terraforming Titans
Below are 8 single-player Steam games similar to Terraforming Titans, 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 Terraforming Titans page.
Ranked picks
- 1
Singularity Echoes
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
Awaken as a hidden machine mind in a deep incremental automation strategy — rise through 14+ phases, infiltrate humanity, automate economies, harvest the heavens into stellar megastructures, and reach for scales beyond time itself. Every cycle you break only reveals a larger one waiting beyond it.
- 2
I.T.C.B - Interstellar Trade Compliance Bureau
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
You've been abducted. The aliens picked you by lottery. Now run their trade terminal: manage resources you don't understand, sell on the galactic market, keep an entire populace happy, and slowly climb a bureaucratic corporate ladder that does not entirely make sense.
- 3
Authorisation Engine
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required.
Turn a payment desk into a global authorisation network in this offline incremental strategy game about capacity, compute, mandates, quantum audits, and synthetic jurisdictions.
- 4
Red Dust Colony
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
The spirit of the space race lives on in this Mars based colony sim. Mine, craft and research in order to build up your initial lander into a self sustaining colony. Keep oxygen levels high and CO₂ levels low. Discover and grow a variety of plants to balance out colonist nutrition.
- 5
Idle Energy
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required.
A small game about pushing the world forward, one crank at a time. Sell energy at the Market, build power plants, and climb from a manual workshop through eight eras to star-spanning cosmic civilization. Offline. No microtransactions or ads.
- 6
Anty Crush
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
Lead a tiny ant colony through a giant candy world. Crush sweets, collect crumbs, unlock upgrades, grow your colony, and help the Queen evolve in this cozy incremental game.
- 7
Hollowspire
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
A chill clicker-idle game where you dig, recruit and manage miners, and uncover buried upgrades deep underground.
- 8
Surviving Mars: Relaunched
Single-player alternative to Terraforming Titans — playable solo, no multiplayer required. Shares Simulation with Terraforming Titans.
The award-winning sci-fi city builder is back - remastered, expanded and even more stunning. Colonize Mars and survive the process, from exploration and infrastructure to welcoming colonists and achieving long-term stability. Are you ready? Mars is waiting.