オンラインでみんなと遊べるアクション（Singleplayer）ゲーム1,889本。Sineus Arena Survivors、HumanitZ、OxyRailなど。
すべてのゲーム: 24
Fight hordes and defend your Stronghold in a bullet heaven survivor-like with co-op and tower defense. Gain power-ups every level, collect random artifacts from chests and grow stronger to survive, defeat the boss and claim a top spot on the Sineus Arena leaderboards!
HumanitZ is an isometric, open-world sandbox survival game set in a world ended by a zombie outbreak. Survive alone or with friends by scavenging, crafting, building, and fighting to last as long as ‘humanly’ possible. You can’t change the past, but you can fight for the future of humanity.
Oxygen Train is an open-world survival train game. Wake up in a world lacking oxygen. Chop trees, mine, gather resources, upgrade your unique train. Survive by planting, fishing, farming, exploring, fighting. Build your train kingdom. Supports 1-16 online co-op.
What's this? An off-the-wall, riveting jetpunk nose-breaking ricochet action platformer, lovingly crafted by the oddballs behind the Teslagrad series!
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.
Lead a medieval restaurant with a team of rats like you! Cook the food, throw it at the guests, wipe the drinks under the skeletons! Become a legendary rat chef, proving to orcs and vampires that the most delicious bloody meat is served in your restaurant!
You have only 5 minutes to stylishly explode your way through the hordes of corrupted entities in a retro FPS, roguelike liminal-nightmare... and Timmee is here to help!
Invincible VS is a brutal superhero 3v3 tag fighting game set in the Invincible universe, where you can battle to the death as a team of fan-favorite characters in iconic locations.
Can you Survive the Swarm? Unlock mighty abilities and upgrades, find and collect Tems to evolve and become stronger, discover overpowered strategies, and battle massive bosses in this survivor-like bullet heaven! Play solo or online co-op with up to 3 players, building the wildest synergies.
Race a ball through obstacle courses and beat your best time to climb the leaderboards. Perfect your lines and discover shortcuts on 20 official and 500+ player-built tracks.
A chaotic 2-player co-op road trip. Share the controls of a pedal car as tourists: sit on the left to turn left, sit on the right to turn right! Coordination is key!
Bits & Bops is a collection of original rhythm mini-games! Filled with catchy music, snappy gameplay and gorgeous, hand-drawn animation, Bits & Bops is sure to brighten your day.
Pet the Cat is a bullet-hell shooter where you unleash powerful attacks by petting an adorable cat! Fight through endless waves of enemies and upgrade your kitty into a formidable force with food, items, and weapons.
IT HAS YOUR FACE. Now it wants your life. Hide, seek, and try to kill your clone in this deceptively simple first-person horror roguelite.
In this survival horror, you're surrounded by sea and a towering gate ahead. Walk into the maze, hunt, gather, and run to survive, alone or with friends. Remember: You're not the only one starving...
Cargo Hunters is an extraction shooter where you control a humanoid robot scavenging the remains of humanity on an abandoned, dystopian Earth. Play solo or in 4 players co-op.
Discover the decadence and danger of 1980's Japan as you fight like hell through its neon-lit entertainment districts in the definitive edition of the action-adventure crime drama that created yakuza legends.
Sudden Strike 5 delivers real-time tactics in epic WWII battles. A host of tactical options and more than 300 playable units open-up multiple approaches to reach your objectives in a 25 mission campaign on historical battlefields in Europe and North Africa.
"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!
Join Scott Pilgrim and Ramona Flowers in a brand-new brawling adventure across space, time, and the streets of Toronto!
33 Immortals is a co-op action-roguelike for 33 players. Jump straight into runs, solo or with friends. Battle hordes of monsters, defeat massive bosses, and grow stronger each run. Use in-game emotes to coordinate and combine powers with your fellow rebels, and face the Wrath of God, together.
LORT is a 1–8 player co-op action roguelite. Team up with your friends to battle, loot, and stack ridiculous power-ups across a cursed fantasy world. Fight toward escape, revive your homies, and get absolutely chadded as you evolve from goblin tickler to god slapper.
KILL IT WITH FIRE! 2 is the ultimate co-op spider-hunting experience! Either solo or as a team of Exterminators, unleash an arsenal of crazy weapons, wreak havoc, and complete dozens of challenges across seven dimensions under spider siege.
Shrunk again, but the world is much larger. In this open-world, single-player or co-op survival adventure, craft weapons and armor, build your base, and traverse the playground on your buggy. But something else is out there—and it hasn’t forgotten you.