アクション（Free to Play）：みんなで遊べるゲーム

Trash Day

Team up with your raccoon squad in this physics-based co-op adventure for up to 6 players. Scavenge trash, fill your stolen wagon, and haul it to Raccoon Paradise. Live your best raccoon life.

$7.99

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.

無料

Nazi Zombies is a cooperative survival game where players fend off escalating waves of Nazi zombies, earning points by killing zombies and repairing barriers to buy weapons, upgrades, perks, and unlock new map areas to maximize their survival.

無料

Origins Trading Card Game

Outplay rivals in a fast PvP card game where both players move at once. Adapt your strategy and battle for three of 100+ rotating locations. Build decks with reimagined legends like Robin Hood and Mulan. Every competitive card is free. Rip packs for rare, limited-edition variants to trade on Steam.

無料

Electoral Carnage

Electoral Carnage is an absurd 2D fighting game featuring America's most famous (and infamous) politicians. If you don't download it you hate America. Also JFK can assassinate himself. What more do you need to know?

無料

Aniimo

Aniimo is a free-to-play, next-gen creature-catching open-world RPG. Explore the vast continent of Idyll, Twine with unique Aniimo, unlock new abilities. Travel to a sky-floating metropolis, meet other Pathfinders, and battle in exciting competitions. Choose your Aniimo and begin your epic journey!

無料

NTE: Neverness to Everness

NTE is a supernatural urban open-world RPG developed by Hotta Studio. Your story begins in Hethereau as an unlicensed anomaly hunter. Team up with a diverse cast of companions, each with unique abilities, to unravel the city's mysteries.

無料

Strikers Club

Strikers Club is a multiplayer football game where you play as one player and compete in action-packed matches against others. Every move counts. Master dribbling, passing, and shooting while working with your team to outplay opponents.

無料

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!

無料

Where Winds Meet：メインストーリーの外で楽しむ武侠協力プレイ

最大4人のフレンドとオープンワールドを探索し、ボス戦や一部のグループチャレンジに挑めます。メインストーリーはソロ向けなので、共有できる冒険には明確な範囲があります。

無料

Last Pirates: Die Together

An online co-op horror experience for up to 4 players. Use your elastic arms to grab valuable loot for your captain. But be careful, danger lurks around every corner trying to take your booty!

$5.19

Relic Arena

Relic Arena is an 8-player free-to-play autobattler. Equip heroes with relics and build game-breaking combos, led by legendary historical figures.

無料

Catto Pew Pew!

Catto Pew Pew! is a physics-based shooter game where competitive gameplay, proximity chat, and pure chaos collide. Shoot your opponents into the sky and claim your victory!

無料

Stitchlings

Play solo, or grab a friend and embark on a bite-sized co-op combat adventure fighting toy monsters, picking them apart, while you stitch together your uniquely customized Stitchlings!

無料

Codename CURE II

Codename CURE II is a co-operative first person shooter set in the aftermath of a zombie apocalypse. Create an elite military squad with up to five players and fight your way through hordes of zombies in a variety of dynamic objective missions.

無料

eBaseball™: PRO SPIRIT

Experience authentic baseball with players from around the world. Feel the arc of every hit, the intensity behind each play, and the roar of the crowd surrounding the stadium. With stunning presentation, the game captures the true intensity of real baseball.

無料

一把菜刀打天下

「裝備全靠爆，出門一把刀！」這是一款超爆笑的無厘頭放置冒險RPG。顛覆沉悶的傳統刷寶，用最沙雕的畫風和滿滿的惡趣味帶你輕鬆闖蕩江湖。重塑經典三大職業，離線掛機也能狂爆神裝！快來挑戰奇葩BOSS，與好友集結公會熱血開戰，拿好你的菜刀，砍翻全場！

無料

Delivery & Beyond

No packages? No problem! Break in. Scrap everything. Deliver... A chaotic online co-op game for up to 5 players (or 15 if you really want to)!

無料

Race Max Pro

Race through Street, Drift, and Drag with real licensed cars. Master every turn, upgrade your ride, and dominate solo or online. The mobile racing hit, now free-to-play on PC.

無料

hololive Dreams

The official hololive rhythm game and RPG -- hololive Dreams -- is now on Steam! Enjoy rhythmical gameplay, park development, and mini-games. Featuring 50+ members and 150+ songs, it's perfect for fans and newcomers alike. Play your way!

無料

The Spike Cross

"The thrill of spiking in volleyball. Why don't you try it out?" Developed by an indie developer who loves volleyball! The sports game made after numerous trial and error to contain the appeal of volleyball!

無料

Ink Shadow: Zero

Ink Shadow: Zero - A martial-arts-themed RPG where you begin as a nameless novice and explore a world where light and shadow intertwine. From chance encounters to pivotal choices that reshape the balance of power, carve your own legend in the martial arts world

無料

Adventurers Guild

"The 2026 Tribal Adventure MMORPG is Now Available! Answer the Call of the Wild. Start Your Hunt Now!"

無料

Legend Battles

Drop into 600 km² of high-velocity tactical extraction warfare (UE 5.6)! Pilot 400 km/h vehicles, control massive weapon arsenals, master 4 specialist classes, earn ARPG medals, battle 5 advanced AI factions, and trade extracted loot on Steam for real value!

無料