基本プレイ無料（Sci-fi）：みんなで遊べるゲーム

Tyr

Tyr is a multiplayer tank shooter. Pilot heavy-armored vehicles with unique capabilities and upgrade them as you battle for victory with your team.

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Cyberfrags '69

Move fast and shoot fast in Cyberfrags '69. Double jump, wall-run, and blast your way to victory in intense PvP and Co-Op, or play as Cyber-Frank as he slaughters the Cyber-Nazis invading his home!

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Save patients with your rhythm mastery! Rhythm Doctor is a rhythm game where you heal patients by defibrillating in time to their heartbeats. Learn each patient's unique heartbeat and defeat boss viruses trying to sabotage your rhythm, all set to heart-pumping, soul-soothing music.

$19.99

Roadside Research

Roadside Research is a 1 to 4 player co-op gas station simulator. Except you’re aliens. And undercover. Do very human things like restocking shelves while preparing for the invasion. Just don’t get caught.

$14.99

Chrono CCG

Rewrite history in a free-to-play card battler built for competitors. Shift the Timeline to change the rules for both players, Immortalize your agents into their ultimate forms mid-match, and win deliberate, skill-first duels. Made by CCG champions, creators and community leaders.

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Age Of Warbots

A sandbox battle simulator game where you can build your own shape-shifting warbots, program their AI, and watch them smash each other up on the battlefield! Join the battles yourself by taking control of the warbots! Use Steam Workshop to check out warbots created by players from around the world!

$9.99

Nexus Legacy

Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.

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Madoka Magica Magia Exedra

Characters from the hit anime series "Puella Magi Madoka Magica" come together! Featuring an all-new story setting and characters from the original ideas of Gekidan Inu Curry (Doroinu), experience the action alongside Magical Girl memories in this battle RPG!

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Marvel Rivals

Marvel Rivals is a Super Hero Team-Based PVP Shooter! Assemble an all-star Marvel squad, devise countless strategies by combining powers to form unique Team-Up skills and fight in destructible, ever-changing battlefields across the continually evolving Marvel universe!

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FragPunk

FragPunk is a thrilling 5v5 hero shooter where Shard Cards allow you to break the rules of combat and ensure that no two rounds are ever the same. Get ready to unleash your skills!

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DRAGON BALL GEKISHIN SQUADRA

DRAGON BALL GEKISHIN SQUADRA is Dragon Ball's first team-oriented free to play game.

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Toaster Arena

Toaster Arena is a first person multiplayer arena shooter where players battle it out on different maps and game modes. Use Advanced movement to traverse obstacles and gain the advantage on the battlefield.

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SHRAPNEL

Shrapnel is a 4v4 objective FPS. Operators clash in a storm-ravaged impact zone to control Sigma—a volatile resource capable of reshaping humanity’s future.

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Block Fortress 2

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, construct turrets, and defend your stronghold against relentless attacks. Team up with a friend or fight alone in this action packed block builder, where only the strongest survive.

$19.99

Alpha League HD

Alpha League HD is a free-to-play, hero based Autobattler. In Alpha League, simply pick and build your favorite hero in a Roguelike fashion with 12 different combat genres, and then battle the other 7 Bots or Players to be the winner.

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Mutants: Genesis

Mutants: Genesis is an online card game that you can play solo or with up to 3 players in PvE and PvP modes! Join the next generation of Psycogs and climb the ranks to establish yourself as Champion! Collect hundreds of mutants, fashion your own deck, cooperate with or fight other players!

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War Robots: Frontiers

Gear up for tactical mech action in War Robots: Frontiers, a free-to-play multiplayer mech shooter. Construct and customize, squad up with Pilots online, and fire up your engines in massive intergalactic battles.

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Mecha BREAK

Squad up in Mecha BREAK, a multiplayer third-person shooter offering three intense game modes filled with ground and aerial combat. Pilot your Striker into the breach and neutralize enemies. Are you ready for the ultimate showdown?

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SPLITGATE: Arena Reloaded

SPLITGATE: Arena Reloaded fuses the best of Splitgate 1 & 2, bringing back that classic arena shooter feel. Jump into fast-paced arena modes or drop into Arena Royale, a battle royale built on arena DNA. Play Season 2 now.

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Super Sus

Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard!

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Relentless Expanse

Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!

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Classic Marathon Infinity

From the team that brought you Aleph One, the classic sci-fi FPS Marathon Infinity from Bungie on Mac revived for modern hardware by the fan community.

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Classic Marathon 2

From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.

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Starborne Frontiers

Starborne: Frontiers is a free-to-play tactical autobattler with hundreds of unique ships. Form your fleet, customize it with a variety of equipment, and use strategy to create the perfect battlefield formation. Take on bounties, engage in the PvP arena, and bring order to the Frontier.

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