Top Free Sci-Fi Games for PC and Browser In 2025!
84 free-to-play Sci-Fi games found in our games list!
Terminull Brigade
A free-to-play third-person looter-shooter with customizable characters.
War Robots: Frontiers
A multiplayer mech game set in a planetary system light years from Earth.
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,
Stormgate
A free-to-play science fantasy real-time strategy game in which humans and robots defend Earth from alien forces.
The First Descendant
A free-to-play third-person co-op looter shooter developed and published by Nexon.
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!
Roller Champions
What if you could player roller derby, but in a more organized and less physically dangerous environment?
Halo Infinite
For the first time ever, a free-to-play Halo experience is available in the form of Halo Infinite’s multiplayer.
Phantasy Star Online 2 New Genesis
The legacy of Phantasy Star Online 2 continues a thousand years later!
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!
