
MicroWorks
MicroWorks は最大16人のプレイヤーと一緒にマイクロゲームとボスステージで競い合い、スコアボードの上位を目指すパーティーゲームだ!
みんなで失敗なく盛り上がれる定番人気作(940本)から、知る人ぞ知る隠れた名作(517本)までまとめました。
一覧にまだ載っていない協力・パーティーゲームも、Steamストアからリアルタイムで一緒に探せます。

MicroWorks は最大16人のプレイヤーと一緒にマイクロゲームとボスステージで競い合い、スコアボードの上位を目指すパーティーゲームだ!

Free multiplayer 2D ghost hunting game that you can play with friends created by a small game dev team.

You're now a monkey*, the room is full of stuff*, collect the stuff in the cardboard box while running away from the possessed monkey. EASY! Don't get caught! And if you're the one possessed, catch every monkey and explode them into the Bananaverse*.

A fast twin-stick shooter where you compete for the top spot in the leaderboards.

Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!

Shatter Keep is an asymmetrical multiplayer game where 3 survivor players try to escape the castle and 1 player attempts to eliminate them. Survivors must complete a list of objectives to open the castle exits while arming traps, lighting torches and avoiding the monster before the timer expires.

Grocket is a minimalist, precision-based adventure and puzzle game. To survive in space, you not only have to escape numerous dangers, but also prove your skills at playing with and against other players.

KNIGHT CLUB + Is a casual 2-4 player action platform-fighting game that brings traditional fighting game elements into an unlocked, free form movement playstyle.

Wheelchair Wizards is a 2-8 player party game where you battle your friends while upgrading your wizard.

A relaxing color by numbers game! Color with your friends! Lots to paint! No hidden fees!

The Timeless Child is a 2-player puzzle-adventure coop game with first-person view. Embark on a journey, through time and space, to save Emily Wells from her endless temporal jail.

「Retrograde Arena」はマルチプレイヤー2スティックのシューティングゲームです。ただし、プレイヤーは被弾しても死にません。武器や物理法則、そして自分のドローンを駆使して敵を押したり引いたり、はたまた吹き飛ばしたりして、危険な障害物に当てましょう。物理ベースアクションの新境地を開拓した本作は、スキルが物を言うシューティングアクションゲームです。

Cart To The End is a First-Person Multiplayer Game where you need to avoid different kinds of obstacles and other players to make it to the end. Shouldn't be that hard. Right?

ソロまたは最大16人の友達と、混乱のスーパーで序章を楽しもう!管理し、成長し、ライバル店と競い合う楽しい戦略バトル。誰が究極のスーパー大富豪になるか?Store Wars: Prologueは本編の限定版です。

Bzz bzz! Hop in chaotic bomb-fueled battles inspired by arcade action classics we all love! Blaster up to 8 players locally with ant-astics Pome-grenades in this bomb-em-up party game and bee the last bug standing!

CS2D is a free fast-paced top-down multiplayer shooter. Featuring many different game modes, a built-in map editor and much more.

Fetch some friends for fun, fast online multiplayer. One of you is the baddie! Everybody else is trying to find the baddie. The baddie is invisible. At least, most of the time...

You are hunted by a rogue computer program. Avoid the bot either by yourself or cooperate with others while attempting to collect electrical components around the world to activate beacons to open the escape hatch.

Ecto is a goofy lil game about jumping around in randomly generated nature worlds. Complete movement challenges, pick up frogs, unlock goofy items, or set time trial records against your friends. Play singleplayer or multiplayer up to 8 players.

遥かなる宇宙からのスペースライン。フライトスクールは、打ち上げ前に自分のスペースラインを運営するための準備をするためのものです。最大3人の仲間と一緒に、人々を目的地まで送り届けるためのチャレンジと要求に挑戦しよう。

Smithworks is a first-person 3D cooperative multiplayer game where players play as fledgling blacksmiths. It is a humorous and chaotic experience where players will need to communicate effectively in order to craft these weapons quickly before the customers get angry.

Team up with your wizard friends to pillage the magic tower! Create elemental synergies, defeat powerful bosses and claim the tower's treasure in this rogue-like dungeon-raider.

Guiding Light is a co-op game in which you and a friend need to rescue stranded aliens from all kinds of sticky situations. One player is an alien who goes down to the planet to execute the rescue operation, while the other pilots the UFO to help guide the alien on the ground.

Chickens, baseball bats and rockets, need more? Fight other player chickens in a fast-paced platformer fighter where you use the environment to defeat your enemies. Pick up fishing rods, jetpacks, net guns, and even other chickens. Also defeat an evil duck in story mode or create maps in the editor.

Fishing Grind is a first person 1-6 player co-op fishing game with a twist. The place you are fishing may not always be safe...

「ナニカゲームオンライン」はオンライン対戦落ちものパズルゲーム!ユニークなスキルを持つ「ナニカ」を選んで、自分だけのデッキを構築し、他のプレイヤーに挑もう!同じナニカを合体させて進化させたり、タイミングを見計らってスキルを使いこなし、勝利を目指せ!

伝説の格闘アクションゲームシリーズが今ここに復活。戦うべく生まれたキャラクターたちが繰り出す理不尽なほどキレキレのアクション、展開によって変化していくクールな音楽、そしてコンボ ブレイカーの数々!!! 流れるようなキャラクターアニメーション、多彩な戦闘スキル、スリリングな必殺技、自分だけの究極のファイターを探せ。

A co-op friendslop game with a heavy focus on customization via drawing. Scavenge liminal bunkers and obtain artefacts that may or may not aid you and your friends.

Easy to learn, hard to master. A simple & free RTS game.

"Loud Run" is a 2-12 player fun multiplayer game. The Chaser tries to catch all the Runners within the range of their voice. When the Chaser runs out of breath, it's the Runners' turn to take down the Chaser. Prepare your breath; a looooong adventure awaits you!

LOST & FOUNDは無料でプレイできる、動的な仕分けゲームです。フォームを正しいアイテムと一致させ、自分だけの倉庫を作り上げましょう。あるいは、仕事のシフトが終わった後、マルチプレイヤーモードで友達と競い合うこともできます。

Inspired by the party games Werewolf and The Resistance, MINDNIGHT is a cyberpunk online social deduction game of deceit, accusations and unpredictability. It challenges your ability to lie and detect others that are trying to be deceptive.

The genre defining VR model train game. Build and ride the model train layout of your dreams without the cost and excessive model foam dust getting in your nose!

You only wanted to make a visit to your sick colleague, but what you encounter is beyond your imagination. Discover the secrets of your colleague and find a way to escape the trap.

国家の終焉は、現代文明の崩壊までのローマの台頭をカバーする4x ターンベースの壮大な戦略ウォーゲームです。

Multiplayer experience in modern art gallery and different theme parks with spectacular art in them.