Free games like Star Ruler 2
Below are 9 free-to-play Steam games similar to Star Ruler 2, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Star Ruler 2 page.
Ranked picks
- 1
SCP: Secret Laboratory
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Indie with Star Ruler 2.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
- 2
Splitgate
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Indie with Star Ruler 2.
Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.
- 3
PlanetSide 2
Free-to-play alternative to Star Ruler 2 — no purchase or trial window.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
- 4
Cell to Singularity - Evolution Never Ends
Free-to-play alternative to Star Ruler 2 — no purchase or trial window.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 5
War Selection
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Strategy and Indie with Star Ruler 2.
War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.
- 6
Endless Sky
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Indie with Star Ruler 2.
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
- 7
AirMech
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Strategy and Indie with Star Ruler 2.
AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!
- 8
War of Dots
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Strategy and Indie with Star Ruler 2.
Easy to learn, hard to master. A simple & free RTS game.
- 9
Foundation: Galactic Frontier
Free-to-play alternative to Star Ruler 2 — no purchase or trial window. Shares Strategy with Star Ruler 2.
Command Asimov's OFFICIAL Foundation universe! Live the life as an interstellar trader to exploit your trade routes! Build your starship home, crush enemies in explosive shootouts & outsmart rivals with fleet strategies in epic space wars - with new content expanding your saga!