Free games like Infinite Abyss
Below are 8 free-to-play Steam games similar to Infinite Abyss, 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 Infinite Abyss page.
Ranked picks
- 1

The Riftbreaker: Prologue
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Action and Strategy with Infinite Abyss.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 2

Endless Sky
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Action and Indie with Infinite Abyss.
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.
- 3

Sunrider: Mask of Arcadius
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Strategy and Indie with Infinite Abyss.
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 Infinite Abyss — no purchase or trial window. Shares Strategy and Indie with Infinite Abyss.
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

Star Realms
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Strategy with Infinite Abyss.
Star Realms is a hugely popular space combat deckbuilding game. Download and play today (note: base set is required to play online) to find out why Star Realms is the winner of SXSW 2014 Board Game of the Year, 7 Golden Geek Awards from BoardGameGeek, and 2 Dice Tower awards!
- 6

SQUIDS FROM SPACE
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Action and Indie with Infinite Abyss.
SQUIDS FROM SPACE is an 8v8, team-based PvP top-down shooter where humans and the sinister Squid aliens wage war for the future of the Earth!
- 7

Bow to Blood: Last Captain Standing
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Action and Strategy with Infinite Abyss.
Become a Captain! Fly your ship and command your crew as you compete to become Champion in a winner-takes-all reality show. Build relationships and plot betrayals to avoid getting voted off the season and become the last captain standing. Optional VR support.
- 8

Rocket delivery: Space Wok
Free-to-play alternative to Infinite Abyss — no purchase or trial window. Shares Indie with Infinite Abyss.
A backpack building run-and-gun game! Fill your backpack with guns, blast away space bugs, and deliver noodles to hungry customers!