Top Free Sci-Fi Games for PC and Browser In 2025!
72 free-to-play Sci-Fi games found in our games list!
Phantasy Star Online 2 New Genesis
The legacy of Phantasy Star Online 2 continues a thousand years later!
Halo Infinite
For the first time ever, a free-to-play Halo experience is available in the form of Halo Infinite’s multiplayer.
Star Trek Online
A free-to-play, 3D, Sci-Fi MMORPG based on the popular Star Trek series.
Tower of Fantasy
Tower of Fantasy is a 3D open-world RPG, anime-style sci-fi MMO RPG game with unique characters and beautiful open vistas!
Phantasy Star Online 2
Welcome to ARKS, and elite task force searching dangerous planets for the corrupted Falspawn in Phantasy Star 2 Online, Sega’s popular, free-to-play sci-fi MMORPG.
Apex Legends
A free-to-play strategic battle royale game featuring 60-player matches and team-based play.
Warframe
A cooperative free-to-play third person online action shooter set in an stunning sci-fi world.
Strinova
A third-person tactical shooter that features the unique mechanic of allowing players to switch between three-dimensional and two-dimensional forms.
Spectre Divide
A 3v3 tactical shooter developed and published by Mountaintop Studios in partnership with former pro gamer shroud,
The First Descendant
A free-to-play third-person co-op looter shooter developed and published by Nexon.
Stormgate
A free-to-play science fantasy real-time strategy game in which humans and robots defend Earth from alien forces.
Roller Champions
What if you could player roller derby, but in a more organized and less physically dangerous environment?
Super Mecha Champions
Super Mecha Champions is a PC port of the mobile anime PvP game from NetEease, featuring a variety of modes but focusing on battle royale.
Unfortunate Spacemen
Unfortunate Spacemen is a co-op multiplayer game about Shapeshifting with a Co-op Story Mode, lots of objectives and more!
Darwin Project
A free-to-play 10-player battle royale game set just prior to an impeding ice age.
Splitgate: Arena Warfare
A free-to-play multiplayer shooter developed and published by 1047 games.
Dreadnought
A free-to-play combat flight simulator developed by Yager Development and published by Grey Box.
