76%Strong matchSpace Architect
76%24676% positive reviews, Mostly Positive across 246 reviews·Colony Sim · Base Building
—







Cosmic Stronghold is a mix of the genres RTS and Tower Defense. Your primary goal is to keep your space station alive for as long as possible, so that it can harvest the nearby mines for precious mineral ores. You will be faced with waves of enemies, getting stronger and stronger for each wave.
Cosmic Stronghold
Steam
In a future where humanity has mastered space travel, the universe is your playground - and your battleground. As the commander of a state-of-the-art space station mining facility, your mission is twofold: explore the cosmos to extract precious ORE from distant asteroid belts, and protect your base from relentless enemies determined to sabotage your operations.
Navigate treacherous space environments, upgrade your mining equipment, and fortify your station's defenses to withstand waves of hostile forces. With strategic planning and quick reflexes, you must manage your resources wisely and expand your station's capabilities.
Can you become the ultimate space mining tycoon? Are you ready to harness the riches of the universe and defend your claim against all odds?
What you can expect from this game
What you cannot expect from this game
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
All matches
Finding similar games…
Space ArchitectShares Top-Down · Automation · Economy , adds Colony Sim76% · 246 positive reviews76%Strong match—
Rogue StationShares Real Time Tactics · 2D · Pixel Graphics , adds Roguelite78% · 218 positive reviews70%Strong match—
Tower DominionShares RTS · Tower Defense · Aliens , adds Roguelike87% · 3k positive reviews69%Strong match—
Outworld StationShares RTS · Top-Down · Automation , adds Sandbox90% · 416 positive reviews74%Strong match—
Stellar InitiativeShares Tower Defense · 2D · Pixel Graphics , adds Roguelike78% · 365 positive reviews66%Strong match—
Ancient SpaceShares RTS · Building · Management , adds Sci-fi42% · 264 positive reviews68%Strong match—All matches
The best games like Cosmic Stronghold are Space Architect, Rogue Station, Tower Dominion, Outworld Station, and Stellar Initiative.
Match on: filter matches for Cosmic Stronghold by tag
Filters all matches
65%+Strong matches