Single-player games like Cosmic Resistance
Below are 9 single-player Steam games similar to Cosmic Resistance, 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 Cosmic Resistance page.
Ranked picks
- 1

RECONNECT - The Heart of Darkness
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
Prove yourself against a real machine learning AI that learns as you play! Build your base grid-free and defend it against a swarm of AI-controlled drones that get smarter with each attack. Reconnect the enemy base to get your own drones, train and command them in the final battle AI vs AI.
- 2

Nettle
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy with Cosmic Resistance.
A single-player survival RTS game about exploring the vast cosmos, the many planets inhabiting it and their countless secrets. You'll need to explore, gather resources and research new technologies in order to survive, thrive, and eventually build a colony on a bizarre, foreign world.
- 3

Infectra
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy with Cosmic Resistance.
Ifectra is a strategy game set in 2124 on the distant planet Emevera III, ruled by the Maxploit Corporation, where an epidemic of a yet unknown virus broke out. Your goal as the corporation security commander is to evacuate as many healthy people as possible and to eliminate infected individuals.
- 4

Towers & Goblins: The Last Stand
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.
- 5

Astro Mining
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
Build a small mining colony in deep space and defend it from alien invaders as you extract precious minerals from asteroids in Astro Mining.
- 6

Raging Titan
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!
- 7

Oasis Mission: Colony Sim
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
A Sci-Fi colony and strategy sim with a complex economy, immersive logistics, and a war against the rise of the machines! Build your colony and ensure supplies for your people. Automate industrial ships and create combat groups to defend against waves of enemies.
- 8

Five Nations
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Resistance.
Five Nations is a real-time sci-fi strategy game for PC platform. Encompassing tactical combat in space in real-time mixed with micromanagement of economy, construction, and production featuring different kind of single player modes.
- 9

Void Tech
Single-player alternative to Cosmic Resistance — playable solo, no multiplayer required. Shares Indie and Casual with Cosmic Resistance.
Repair satellites in orbit. Reduce space debris. And enjoy the view. Void Tech is space repair simulation game, where every mission extends satellite life and restores critical infrastructure.