Best Free Sci-Fi Games for PC and Browser in 2021!
59 free-to-play Sci-Fi games found in our list!
Hyper Scape
A futuristic urban battle royale game with powerful hacks and unique weapons!


Unfortunate Spacemen
Unfortunate Spacemen is a co-op multiplayer game about Shapeshifting with a Co-op Story Mode, lots of objectives and more!

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.

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.

Apex Legends
A free-to-play strategic battle royale game featuring 60-player matches and team-based play.

Dreadnought
A free-to-play combat flight simulator developed by Yager Development and published by Grey Box.


Cosmos Invictus
A strategic collectible card game developed and published by Pegnio Ltd.


SoulWorker
A free to play anime action MMO based on the popular anime of the same title.



Closers
A free-to-play episodic anime beat-em-up developed by Naddic Games and published by En Masse Entertainment.


Insidia
A free-to-play tactical, turn-based dueling game developed and published by Bad Seed.

Quake Champions
Quake Champions is a callback to the early days of the Quake IP, featuring the fast-paced action that made the IP popular over two decades ago.



Alien Swarm: Reactive Drop
A free-to-play top-down tactical co-op expansion on the Alien swarm game and Source SDK.

Paladins
A free-to-play team-based shooter developed and published by Hi-Rez Games, the creators of SMITE.

Star Crusade
A free-to-play sci-fi themed collectable card game developed and published by ZiMAD inc.

UFO Online: Invasion
A free-to-play post-apocalyptic, turn-based tactical combat MMO developed by Bad Pixel.

SAO’s Legend
A free-to-play browser-based MMO based on the popular anime Sword Art Online.

Starbreak
A Roguelike MMORPG with MetroidVania-style platformer gameplay! Castlevania and Metroid fans will love this game!

Holodrive
A free-to-play 2D multiplayer shooter developed by BitCake Studio and published by Versus Evil in which players play as customizable robots or "Dummys".


Metal War Online: Retribution
A high-speed multiplayer online concept car shooter game with racing elements!

MechWarrior Online
A free-to-play PvP game that's a faithful adaptation of the popular MechWarrior strategy board games.
