Best Free Sci-Fi MMO Games for PC in 2025

77 Free-to-play Sci-Fi games found in our list!
Crossout
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FREE
FragPunk
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FREE
Star Trek Online
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FREE

The Lost Glitches
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FREE

The Lost Glitches

A card game that claims to reward "true TCG enthusiasts who take pride in their strategic brilliance."

Steel Hunters
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FREE

Steel Hunters

Grab a mech and a friend and work together to ensure your survival.

FragPunk
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FREE

FragPunk

5v5 hero shooters are all the rage right now, but FragPunk thinks it can "break the rules."

War Robots: Frontiers
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FREE

War Robots: Frontiers

Plan your mech strategy in PvP as both the pilot and the engineer of your own high-tech machine.

Marvel Rivals
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FREE

Marvel Rivals

Marvel IP and a hero-shooter, could there be a better free-to-play combo?

Return Alive
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FREE

Return Alive

KOG Games tries their hand at a Top-down Tactical Shooter Game for the first time.

Starborne: Frontiers
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FREE

Starborne: Frontiers

Build your space empire in Starborne, a free-to-play sci-fi MMO strategy game

Spectre Divide
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FREE

Spectre Divide

The team depends on you even more in this competitive shooter since you control 2 players at once.

Stormgate
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FREE

Stormgate

A new real-time strategy title crafted by veterans of some of the genre's classics.

The First Descendant
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FREE

The First Descendant

Push back against the Vulgus with your Descendant of choice in this free-to-play PvE-only looter-shooter.

Project Apidom
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FREE

Project Apidom

Let's mash up a few different genres of multiplayer games and see what we get!

Predecessor
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FREE

Predecessor

From the ashes of Paragon comes a new, third-person MOBA, Predecessor.

Waven
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FREE

Waven

The makers of WAKFU bring you their next iteration on multiplayer tactical RPG gameplay.

GALAHAD 3093
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FREE

GALAHAD 3093

Hop in your Arthurian legend inspired mech and compete your way to the top of the round table.

Overwatch 2
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FREE

Overwatch 2

Big changes come to the Overwatch formula in this sequel...and so does PvE content, eventually.

Gundam Evolution
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FREE

Gundam Evolution

Miss when that other hero shooter was 6v6? Well here you can do that AND wear sweet Mobile Suits!

Omega Strikers
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FREE

Omega Strikers

Think MOBA meets soccer...got that in your head? Yeah, this is pretty much that.

Tower of Fantasy
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FREE

Tower of Fantasy

Tower of Fantasy brings the MMORPG experience to PC and mobile with a F2P, splashy, anime-esque style.

Roller Champions
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FREE

Roller Champions

Roller Champions tasks you and your team with holding a ball and skating laps around an arena as you dodge, duck, dip, dive, and dodge your way around the opposing team.

Halo Infinite
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FREE

Halo Infinite

Step into the boots of a fresh Spartan and fight for galactic supremacy in free-to-play Halo Infinite Multiplayer

Phantasy Star Online 2 New Genesis
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FREE

Phantasy Star Online 2 New Genesis

Defend the Planet Halpha against the threat of the DOLLS in F2P sci-fi MMORPG Phantasy Star Online 2: New Genesis! PSO2:NG is a remastered version of the original PSO2, with stunning new graphics and gameplay features.

Super Mecha Champions
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FREE

Super Mecha Champions

Jump into your mech and duke it out with the rest of the world in Super Mecha Champions, a free-to-play battle royale from NetEase. Your battlefield is the futuristic manga-inspired Alpha City, where you'll choose your ace pilot, select one of 10 mecha, customize it to your liking, and dash into furious combat!

Unfortunate Spacemen
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FREE

Unfortunate Spacemen

Make new space friends and betray them all in Unfortunate Spacemen, a free-to-play shooter from New Blood Interactive. Complete objectives and hunt monsters in varied sci-fi environments ...

Valorant
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FREE

Valorant

Valorant is Riot Games' free-to-play competitive 5v5 tactical shooter, where you'll need strong gunplay and timely use of abilities to come out on top. Choose your character and participate in matches up to 25 rounds long, taking turns as attackers and defenders.

Phantasy Star Online 2
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FREE

Phantasy Star Online 2

Phantasy Star Online 2 is a free to play 3D MMORPG published by SEGA. Based on the original Dreamcast and Gamecube series, Phantasy Star Online 2 offers players the chance to visit detailed worlds and fight hundreds of interesting enemies.

Darwin Project
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FREE

Darwin Project

Experience a fresh perspective on the battle royale experience with Darwin Project, a free-to-play game that takes the "game show" concept to a whole new level.

Destiny 2
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FREE

Destiny 2

Embark on a heroic quest to save humanity in Bungie's epic sci-fi MMO shooter Destiny 2, now free-to-play.

Splitgate: Arena Warfare
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FREE

Splitgate: Arena Warfare

Frag your enemies from all angles through the clever manipulation of portals that let you zip around the battlefield like never before!

Apex Legends
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FREE

Apex Legends

Apex Legends is a free-to-play battle royale set in the Titanfall universe and taking place after the events of Titanfall 2.

Dreadnought
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FREE

Dreadnought

Dreadnought is a sci-fi, multi-player space combat simulator from Yager. Players will take control of a variety of unique ships to combat opposing teams in a strategic environment.

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