Free games like Perimeter
Below are 8 free-to-play Steam games similar to Perimeter, 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 Perimeter page.
Ranked picks
- 1
STAR WARS™: The Old Republic™
Free-to-play alternative to Perimeter — no purchase or trial window.
STAR WARS™: The Old Republic™ is a free-to-play MMORPG that puts you at the center of your own story-driven saga. Play as a Jedi, Sith, Bounty Hunter, or one of many other iconic STAR WARS roles in the galaxy far, far away over three thousand years before the classic films.
- 2
Cell to Singularity - Evolution Never Ends
Free-to-play alternative to Perimeter — no purchase or trial window.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 3
Sunrider: Mask of Arcadius
Free-to-play alternative to Perimeter — no purchase or trial window. Shares Strategy with Perimeter.
As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life.
- 4
Istrolid
Free-to-play alternative to Perimeter — no purchase or trial window. Shares Strategy with Perimeter.
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
- 5
BEEP
Free-to-play alternative to Perimeter — no purchase or trial window.
A combination of platforming with a gravity gun, BEEP is an amazing physics-platformer. Despite its friendly art style, this is a hardcore platformer in the truest sense.
- 6
Galcon 2: Galactic Conquest
Free-to-play alternative to Perimeter — no purchase or trial window. Shares Strategy with Perimeter.
Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!
- 7
SPACE / MECH / PILOT
Free-to-play alternative to Perimeter — no purchase or trial window. Shares Strategy with Perimeter.
The S/M/P Initiative is not responsible for any odd abnormalities while playing. Connections to other universes are not monitored or controlled by the video game program. Keep away from children under the age of 6. Fun to play but not to eat.
- 8
Genius Greedy Mouse
Free-to-play alternative to Perimeter — no purchase or trial window. Shares Strategy with Perimeter.
GENIUS GREEDY MOUSE is a clay based puzzle game featuring a host of fun and challenging levels.