
Happy Maze
Easy game for easy life. Enjoy.
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。

Easy game for easy life. Enjoy.

1つの拠点空港から、自分だけの航空会社を築き上げよう。路線を開設し、運賃とサービス戦略を練り、運航スケジュール、人材、機材、評判などを管理。地域航空会社を世界規模の航空ネットワークへと成長させよう。

Explore the deepest caves with a cup of tea in your hand, reach the heart of the jungle with your finger on a globe, send your highly educated employees to uncivilized tribes and don't let them convince you it's a certain death! The worst case scenario? You will hire new ones.

In Fat baby multiple babies battle it out to get as fat as they can by eating and destroying everything around them. Traverse around a destructible environment while trying to avoid danger. Use your fat to buy abilities and use your abilities to wreak havoc on everything in your path!

HoverRace is a racing video game created by GrokkSoft in 1996.

Fast-paced racing game in a retro 80's neon style.

1人から最大6人までで、怪物だらけの街を駆け抜け、生存者にピザを届けろ──すべては謎の霧が始まりだった。

HaberDashers is a console-style arcade (kart) racer for the PC in which players control miniature humanoid inhabitants of an everyday home, racing past outsized household items and through rooms as they compete against human and AI opponents with both driving skills and item pick-ups.

ACT IT OUT XL! is the multiplayer party game created to complete your games night! Get your friends or Twitch viewers to guess your favourite films, songs and video games as you describe, act, draw or sing them!

Burntime is a remaster and expansion of Max Design's 1993 post-apocalyptic strategy RPG. Survive, trade, build camps and compete for control of five cities. Play with remastered visuals and modern controls.

A fantasy strategy game that combines collectible card and board game mechanics. Build custom decks, choose powerful heroes, and engage in tactical, turn-based battles in competitive PvP leagues and battlefield tournaments.

Demon's Crystals is a frenetic twin stick shooter where you guide the Urican demons through countless hazards in order to restore peace to the world. A variety of weapons and power-ups will help you defeat the massive enemy hordes. The Urican have always been at the top of the food pyramid, but one day three mysterious beings arrived causing the once peaceful inhabitants of the world to become aggressive and destructive. Now these astral demons must fight to survive.

Mauled is a Free-To-Play indie TPS by a solo developer. Fight relentless hordes alone or in online Co-op across varied maps. Collect tiered weapons, trigger tactical traps, and upgrade your character's stats as the difficulty rises round after round. Survival is your only goal.

Big E’s back in action! Working the farm over Summer is never easy - but everyone knows you’re the best. Do your utmost to keep the product moving, the customers happy and the law at bay, and everything’ll turn out great!

Eyes of Hellfire is a co-op gothic horror game inspired by tabletop games, but with a twist - the insidious Host can manipulate your sense of reality

Streets Ablaze is a 3D side-scrolling beat em' up inspired by the arcade and console games we played growing up.

Ironclad Tactics is a fast-paced, card-based tactics game set in an alternate history Civil War - with steam-powered military robots!

Get ready to ragdoll in RagBrawl! Compete as a floppy Tuffling toy with up to 12 players online and show them your stuff in this chaotic party game!

メカズーは、シングルプレイまたは協力プレイで、動力学的に多様な動物を主人公として冒険・攻略する鮮やかな完全3Dワールドを備えている2Dプラットフォームです。古典的なプラットフォームからインスピレーションを得ており、メカズーは新しく創造的、ユニークかつ楽しいゲームプレイ体験を追及するために、コアとなる古典的要素を利用しています。5種の多様な主人公たちは、それぞれユニークな能力を備えています。

オンラインでもオフラインでも遊べる、驚くほどシンプルなポストアポカリプススタイルカードゲームです!

The Chess Themed Chess offers a relaxing, minimalist chess experience with multiple boards, piece sets, AI opponents, and multiplayer. Play in 3D or 2D, learn the game’s history, and explore RPG-themed DLC. Free to Play – Download now and enjoy endless strategy!

Light Bearers 2 is a fast paced hide and seek, asymmetrical multiplayer horror game. A Shadow is trying to corrupt all Light Bears. The Light Bears must use their movement and cunning. To keep each other from becoming corrupted by darkness.

A game of survival and Mystery. 3 - 10 Explorers find themselves deep in the mountains of Transylvania. They must stay in the light or die in the dark for within one of them lies a monster. This was a student project which we plan to slowly complete over the next year.

Take flight in Ski Jumping World Cup - a true ski jumping adventure that takes you to legendary hills across the globe. From snowy peaks in Scandinavia to wind-swept arenas in Japan and record-breaking runs in the USA, every leap demands focus, precision, and nerves of steel.

FFFL: Brutalball Manager is a Franchise Management Simulation game, based mostly on American Football in a Fantasy setting. Take full control of the entire league. Tons of customization, deep stat tracking and unique rules.

見た目はバトルシップ。中身は知恵比べ。40隻以上の艦船、それぞれがユニークな能力を持っています - 4隻の艦隊を作り、1対1の高速対戦で相手を出し抜きましょう。基本プレイ無料、クロスプラットフォーム、プレイヤー数500万人以上。

Alchemy Frogs is a local co-op puzzle platformer game with a 3D, isometric camera, in which Frog & Toad traverse a poisoned swamp to look for a cure that will help them save their family from being turned to stone. Frog & Toad will mix their potions to unleash powerful magical effects.

Foobar Zero is a fast-paced multiplayer shooter game, with anime characters. Customize your characters with various outfits, create your own loadout with futuristic guns and swords, and dominate your enemies with superior movement!

Welcome to Endless Furry Ping-Pong! The 7th installment of the "Endless Furry" Series! This game is a simple recreation of the classic Pong game, but with a furry twist!

『PENTALOOP -ペンタループ-』は、 4人専用のGMレスマーダーミステリーゲームです。 家族や友達、気の合う仲間と、 一緒にプレイしましょう。

Take control of a cyberdragon and annihilate swarms of rocket propelled chainsaws either online or via LAN in this high speed, high skill 8 player co-op twinstick shooter.

2~4人で遊べるカオスなパーティーゲーム!登って、投げて、生き残れ!

世界規模の大災害が発生。少数の生存者は、全員分の資源がない隔離シェルターに閉じ込められた。席につき、自分こそ残るべきだと皆を説得しよう。嘘をつき、圧力をかけ、操り、誰を追放するか決めろ!

Fall of the stick knights is based on physics-controlled characters to play with friends up to 4 people. The game features has skin customization, nice fun hook mechanic and the clumsy characters, providing a lot of fun.

Zen World is a strategy game that can be as relaxing as you want it to be. Build a calm and colorful landscape with hexagonal tiles, matching their borders to each other, collect valuable boxes, and explore the tech tree.

物理演算を搭載した唯一無二のリアルタイムネット麻雀です。ルールのカスタマイズは自由自在!すべてにおいてリアルを追求しました。