Best Free Sci-Fi Games for PC and Browser in 2023!

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

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

Take part in huge intergalactic battles and take on the whole galaxy in DarkOrbit, the free-to-play browser-based space combat MMO from Bigpoint -- now in 3-D! Choose your faction and your ship, each with their own strengths, and take off into adventure!

Trick out your ride and take to the post-apocalyptic roads for battle in Crossout, the free-to-play vehicular combat game from Gaijin Entertainment! Featuring a vehicle design system with endless customization and fast-paced, armor-crunching combat, Crossout offers high-octane excitement in brief and explosive matches.

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

Noah's Heart is an open-world action-adventure MMORPG game developed by Archosaur Games, the developers of Dragon Raja.

Embark on a heroic quest to save humanity in Bungie's epic sci-fi MMO shooter Destiny 2, now free-to-play. Experience a wealth of content as a stalwart Titan, mysterious Warlock, or crafty Hunter, battling the enemies of humanity across the solar system.

Warframe is a free to play sci-fi co-op TPS (3rd-person shooter) being developed by Digital Extremes, the makers of The Darkness 2. As a race on the brink of extinction, players wield powerful suits the Tenno called warframes.

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 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.

Apex Legends is a free-to-play battle royale set in the Titanfall universe and taking place after the events of Titanfall 2. Following the events of the Frontier War, the bloody Apex Games are in full swing, drawing in legends from all across the Frontier to fight for fame, glory, and riches!

Play Fortnite in a totally new way, in Fortnite: Battle Royale, the free-to-play spinoff of Epic Games' builder/shooter. Like other classic BR games, you'll be dropped into the world and forced to scavenge and survive.

Planetside 2 is free to play open world persistent MMOFPS published by Sony Entertainment Online. In Planetside 2 players fight in epic large scale battles across a variety of landscapes during the day and night.

Star Wars: The Old Republic (SWTOR) is a free to play 3D Sci-Fi MMORPG based on the popular Star Wars universe. SWTOR takes place 3000 years before the films, and allows players to become Jedi, Sith, Bounty Hunters, Troopers, and other iconic classes!

Star Trek Online (STO) is a free to play 3D Sci-Fi MMORPG based on the popular Star Trek series. In this massively multiplayer online game from Cryptic Studios, players can pioneer their own destiny as Captain of a Federation starship or they can become a Klingon Warlord and expand the Empire to the far reaches of the galaxy.

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

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

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

Dive into The Cycle, a free-to-play shooter from YAGER that blends competitive with cooperative gameplay.

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.

Space Punks is a free-to-play online co-op ARPG with a high enemy count looter shooter gameplay loop.

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.

Loot and shoot to your heart's content in Drifters Loot the Galaxy, a high-flying free-to-play shooter from Blind Squirrel Entertainment! Strap on your Driftpac and bring your hard-earned loot back to the dropship, but beware -- your opponents will try to relieve you of your spoils and claim it for themselves!

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!

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 ...

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. As a contestant, you'll need to craft and kill your way to the top, as usual -- but the Show Director can make your life easier, or more difficult, and spectators can also weigh in, influencing the Director to aid or hinder players of their choosing.

Take on a new dimension in shooters with Splitgate: Arena Warfare, a free-to-play third-person shooter from 1047 Games. Frag your enemies from all angles through the clever manipulation of portals that let you zip around the battlefield like never before!

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.

Experience an epic sci-fi story as either rugged Raiders or invading Antagonists in Spacelords from MercurySteam! Formerly known as Raiders of the Broken Planet, Spacelords is a rework of the game, with all the action and cinematic story of the original, in free-to-play form.

Ironsight is a free-to-play shooter set in the 2020s, when two factions fight over the last of the planet's dwindling resources. Built from the ground up in the Iron Engine, Ironsight offers top-notch visuals and dynamic battlefields.

In Closers, a free-to-play fighting MMORPG, horrific creatures are springing from mysterious dimensional gates all around New Seoul, and it's up to you to stop them! Play as one of several psychic warriors, each with their own unique backstory and special abilities, and reclaim Korea!