Single-player games like Extinction Eclipse
Below are 8 single-player Steam games similar to Extinction Eclipse, 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 Extinction Eclipse page.
Ranked picks
- 1
Bacteria Wars
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
A real-time strategy game in which you fight to secure the victory of your Bacteria over the Cell Defense Force and other enemy Bacteria in a world where your units are your only resource, and where your mobile base will not be enough to keep you alive.
- 2
Ignis Corruption
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.
- 3
Annihilate The Spance
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Strategy and Indie with Extinction Eclipse.
An RTS base builder with huge battles, constant production, and autonomous ships. The Spance approaches, a vast and mysterious storm at the edge of humanity. Who shall claim its riches? Brave the perils of the depths in a story-rich singleplayer campaign with numerous distinct factions and bosses.
- 4
Rogue Command
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
True RTS gameplay reinforced with roguelite build crafting. Control units with bullet-time precision. Call down bases and raise armies. Drafted from a different arsenal every run. Weave builds that break the game. Or the game breaks you.
- 5
IDUN - Frontline Survival
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
- 6
Freaking Meatbags
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
Land on a planet, pick up some rocks, leave before the solar system explodes. Oh, and don't die in the nightly robot attacks! Freaking Meatbags is a humorous real-time strategy game that's all about building a base, mixing meatbag DNA, then convincing those dolts to help you gather resources.
- 7
Diplomacy is Not an Option
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Action and Strategy with Extinction Eclipse.
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
- 8
Reshaping Mars
Single-player alternative to Extinction Eclipse — playable solo, no multiplayer required. Shares Strategy and Indie with Extinction Eclipse.
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.