Top Free Sci-Fi Games for PC and Browser In 2023!65 free-to-play Sci-Fi games found in our games list!
Test your mettle in Riot Games’ character-based FPS shooter Valorant.
A free-to-play, standalone mode of Epic Game's Fortnite.
A free-to-play strategic battle royale game featuring 60-player matches and team-based play.
A free-to-play multiplayer online FPS from Crytek, makers of the Far Cry and Crysis series of games.
Dark Orbit Reloaded
A browser-based 3D space-combat MMO with a massive playerbase!
A post-apocalyptic MMO vehicle combat game!
A free-to-play co-op sci-fi shooter.
A free to play fighting MMO, experience frantic battles up to 20 players.
A cooperative free-to-play third person online action shooter set in an stunning sci-fi world.
Noah’s Heart is an open-world MMORPG game with a focus on exploration and socialization.
A free to play 3d browser based tank game with fast-paced tactical battles!
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.
A free-to-play episodic anime beat-em-up developed by Naddic Games and published by En Masse Entertainment.
A text-based sci-fi strategy and diplomacy MMO Game in a persistent universe.
Star Trek Online
A free-to-play, 3D, Sci-Fi MMORPG based on the popular Star Trek series.
For the first time ever, a free-to-play Halo experience is available in the form of Halo Infinite’s multiplayer.
A free-to-play 3D MMO with cowboys, dinosaurs, and laser guns.
Phantasy Star Online 2 New Genesis
The legacy of Phantasy Star Online 2 continues a thousand years later!
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!
A Roguelike MMORPG with MetroidVania-style platformer gameplay! Castlevania and Metroid fans will love this game!
Space Punks is a sci-fi co-op looter shooter with graphics and humor that will likely appeal to the Borderlands fans among us.
A free-to-play multiplayer Sci-Fi MMOFPS from Bungie.
A free-to-play combat flight simulator developed by Yager Development and published by Grey Box.
Splitgate: Arena Warfare
A free-to-play multiplayer shooter developed and published by 1047 games.
Guns and Robots
A free to play online third person shooter with massive customization!
A free-to-play cross-platform space combat MMO from SPYR games.
A free-to-play futuristic shooter published by Aeria Games.
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.
A free-to-play browser MMO strategy game that puts you in command of a rapidly growing city on a dangerous alien world.
UFO Online: Invasion
A free-to-play post-apocalyptic, turn-based tactical combat MMO developed by Bad Pixel.
A free-to-play team-based shooter developed and published by Hi-Rez Games, the creators of SMITE.
A free-to-play sci-fi themed collectable card game developed and published by ZiMAD inc.