Top Free Sci-Fi Games for PC and Browser In 2025!

78 free-to-play Sci-Fi games found in our games list!
FragPunk
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FREE
Dark Orbit Reloaded
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FREE
Star Trek Online
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FREE

Marvel Rivals
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FREE

Marvel Rivals

A free-to-play superhero team shooter from NetEase.

Fortnite
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FREE

Fortnite

A free-to-play, standalone mode of Epic Game's Fortnite.

Valorant
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FREE

Valorant

Test your mettle in Riot Games’ character-based FPS shooter Valorant.

FragPunk
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FREE

FragPunk

A free-to-play 5v5 hero shooter that uses cards to modify matches.

Dark Orbit Reloaded
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FREE

Dark Orbit Reloaded

A browser-based 3D space-combat MMO with a massive playerbase!

Steel Hunters
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FREE

Steel Hunters

A post-apocalyptic extraction shooter with giant mechs.

Halo Infinite
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FREE

Halo Infinite

For the first time ever, a free-to-play Halo experience is available in the form of Halo Infinite’s multiplayer.

Crossout
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FREE

Crossout

A post-apocalyptic MMO vehicle combat game!

Phantasy Star Online 2 New Genesis
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FREE

Phantasy Star Online 2 New Genesis

The legacy of Phantasy Star Online 2 continues a thousand years later!

Spectre Divide
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FREE

Spectre Divide

A 3v3 tactical shooter developed and published by Mountaintop Studios in partnership with former pro gamer shroud,

Ironsight
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FREE

Ironsight

A free-to-play futuristic shooter published by Aeria Games.

Dreadnought
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FREE

Dreadnought

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

The First Descendant
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FREE

The First Descendant

A free-to-play third-person co-op looter shooter developed and published by Nexon.

War Robots: Frontiers
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FREE

War Robots: Frontiers

A multiplayer mech game set in a planetary system light years from Earth.

Apex Legends
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FREE

Apex Legends

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

Once Human
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FREE

Once Human

A post-apocalyptic open-world survival game from Starry Studio.

Honkai: Star Rail
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FREE

Honkai: Star Rail

A free-to-play sci-fantasy game from HoYoVerse

Warface
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FREE

Warface

A free-to-play multiplayer online FPS from Crytek, makers of the Far Cry and Crysis series of games.

Star Trek Online
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FREE

Star Trek Online

A free-to-play, 3D, Sci-Fi MMORPG based on the popular Star Trek series.

SoulWorker
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FREE

SoulWorker

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

Destiny 2
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FREE

Destiny 2

A free-to-play multiplayer Sci-Fi MMOFPS from Bungie.

Tower of Fantasy
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FREE

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!

GetAmped 2
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FREE

GetAmped 2

A free to play fighting MMO, experience frantic battles up to 20 players.

Phantasy Star Online 2
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FREE

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.

Strinova
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FREE

Strinova

A third-person tactical shooter that features the unique mechanic of allowing players to switch between three-dimensional and two-dimensional forms.

Astro Empires
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FREE

Astro Empires

A text-based sci-fi strategy and diplomacy MMO Game in a persistent universe.

Return Alive
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FREE

Return Alive

A free-to-play top-down tactical shooter.

The Lost Glitches
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FREE

The Lost Glitches

A cyberpunk RPG trading card game from Honig Studios.

Warframe
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FREE

Warframe

A cooperative free-to-play third person online action shooter set in an stunning sci-fi world.

Darwin Project
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FREE

Darwin Project

A free-to-play 10-player battle royale game set just prior to an impeding ice age.

Pocket Starships
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FREE

Pocket Starships

A free-to-play cross-platform space combat MMO from SPYR games.

Unfortunate Spacemen
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FREE

Unfortunate Spacemen

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

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