オンラインでみんなと遊べる基本プレイ無料（2D）ゲーム286本。Electoral Carnage、Jono、FrontWarsなど。
すべてのゲーム: 24
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?
Work together to complete one million levels, one player at a time. Continue where the previous left off. Chat with others while you wait for your turn. How long will it take?
FrontWars is a free-to-play multiplayer strategy game where hundreds of players battle for global domination! Build alliances, command armies, grow your economy, and unleash nuclear strikes to wipe your rivals off the map. No pay-to-win: only the strongest will rule the world.
Online Texas Hold'em with publicly verifiable fair dealing. We never manipulate outcomes to drive spending. Every hand is decided by player judgment, strategy, nerve, and timing. Play with friends, read opponents, manage your chips, and personalize your table with themes and card backs.
A casual companion that lives on your Windows desktop. Strike the woodfish to earn Merit, collect skins, open chests, complete collections and crafting, and play online with up to 3 Steam friends.
IOSoccer is a free non-commercial competitive third-person online multiplayer soccer game that offers unparalleled freedom in ball control and gameplay depth.
Rise as a vampire in a handcrafted 2D dark-fantasy RPG. Master devastating powers, confront horrific enemies, and forge your destiny in a world shattered by a brutal civil war between humans and vampires.
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.
気軽に、だけど本格的。『棋桜（きおう）』でキャラクターと一緒に将棋を楽しもう。初心者には学びを支えるAIサポート、実力者には純粋な読みと一手の勝負を。あなたの一手から、対局が始まる。
《墨仙箓》是一款融合修仙题材与多人社交的文字挂机游戏。在这里，你可随时放置修炼，于日常忙碌、工作学习中悄然成长，亦可与其他道友协作共闯秘境、交易资源、切磋较量。挂机历练途中，不仅可积累修为与法宝，更可能遭遇机缘事件，瞬间改变仙途命运！
A free multiplayer pixel survival game. Start with nothing and take everything: fish, farm, build a home, fight bosses and other players. The map gets wiped, but your character keeps its progress.
A tiny desktop worm pet that moves when you type, click, or play. Dress it up with hats and skins, park it in a pocket where its gaze follows your mouse, and let its Anti-Shrimp reminders nudge you to sit up and stretch.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
Become a horse owner, own your own horses, train and participate in various races, and cultivate horse kings to dominate the track! Buy luxury cars, own your own independent villa, decorate your own mansion, form your own horse racing club with like-minded people, and become the derby's tycoon!
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!
"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!
An Idle Space MMORPG where you progress at your own pace, but the universe is built together. Explore a procedural galaxy of nearly 50 million star systems alone — or join a Squadron to pool resources, raise space stations, upgrade shared buildings, and expand across the stars as one.
Turn your desktop into a living racetrack with this online idle racing management game. Build your garage, equip parts, and watch your cars run championships on their own. And whenever you like, take the wheel in Driving Mode against up to 20 players.
Play the most realistic pool game with amazing graphics! Play for free with millions of players from all over the world!
Relaxing city builder where you grow a vibrant metropolis, produce goods, manage transit and build iconic landmarks at your own pace.
Play as a variety of creatures or characters and try to survive either maintaining or attacking a space station while everything that can go wrong has already gone wrong.
After years of absence, Miscrits is back and better than ever! Return to the world of Miscria and capture hundreds of iconic Miscrits. Train your Miscrits to their strongest forms and put a stop to the Magicites, who threaten to eliminate all Miscrit life from the world!
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.