Games like Worm.is: The Game on Steam
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Bloons TD Battles
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
Mitos.is: The Game
Step into the microscopic world of Mitos.is! Eat or be eaten—become the ultimate cell in a highly addictive multiplayer game. Diverse modes, daily tournaments, guilds, and gear await! The BEST game of 2015 is back!
Transformice
Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!
Battle Islands
Battle friends over air, land and sea in this epic WW2-themed battle strategy game.
Goose Goose Duck
Goose Goose Duck is a game of social deduction for up to 16 players. Players are separated into different groups that are each assigned a different objective. Complete your team’s objective to win!
Clicker Heroes
Ever wondered what one quadrillion damage per second feels like? Wonder no more! Embark on your quest to attain it today!
Yet Another Zombie Defense
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
Tumblestone
Tumblestone is the first original action-puzzle game of the past fifteen years -- completely reinventing the genre into a deep and cerebral puzzle solving experience that you won't forget.
Bombergrounds: Reborn
BOMBERGROUNDS: Immerse in a free-to-play massive multiplayer action-packed arena inspired by classic bomber games. Dash, bomb, bat, and explode your way to victory. Your realm of relentless arcade action is just a click away—dive in and rule the grounds!
Circle of Sumo: Online Rumble!
Use your belly to your advantage! Challenge players all over the world and climb the leaderboards. Fight into the arena: charge, hit, dodge and defeat the opponents. Let's have some good old fun!
Wizards
Artillery tactics games are back! Grab some friends and get ready for an all out Wizard war! Create your own way of play with tons of unique spells to choose from. With randomly generated terrain and unlimited combinations, you'll never know what will happen next. Completely free to play.
Awesomenauts - the 2D moba
Use your power, show your might! Play this Multiplayer Online Battle Arena (MOBA) game for FREE now! AWESOMENAUTS combines 2D platforming with team-based strategy and hero based action. Whether you are a new recruit or an intergalactic legend, play AWESOMENAUTS!
Cook, Serve, Delicious! 3?!
Cook, serve and manage your food truck as you dish out hundreds of different foods across war-torn America in this massive sequel to the million-selling series!
Cook, Serve, Delicious! 2!!
Deceptively easy to learn but incredibly difficult to master, Cook, Serve, Delicious! 2!! is your journey of being the best chef in the world with your small but humble restaurant on the 50th floor of the Teragon Supertower.
Bloons TD 5
Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.
Bloons TD 6
The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available.
Move or Die
Move or Die is an absurdly fast-paced 4-player local and online party game where the mechanics change every 20 seconds! It's THE friendship-ruining game.
ShellShock Live
Demolish your friends with hundreds of upgradable weapons shot from your customizable tank in this action-packed online multiplayer tanks game. Earn XP to level up and unlock new tanks, weapons, and gear. Fight against or alongside your friends for strategic team or free-for-all matches.
Sneak Out
Sneak Out is a free to play multiplayer game full of mischief and fun for up to six players. Enter the Haunted Castle and prepare to hunt, hide, or prank 'em all, causing all kinds of hilarious mayhem while trying to win the deadly game of hide and seek!
Stumble Guys
Race through obstacle courses against up to 32 players online. Run, jump and dash to the finish line until the best player takes the crown!
Bloons TD Battles 2
From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons!
Ironsight
Online FPS game, near future background, Resource Warfare between Military Forces and PMC. More than 50 kinds of original weapons with customization option. Use Peripheral objects, Tactical drones, Active objects to experience dynamic warfare.
Hero Zero - Multiplayer RPG
Become a hero, build your own Hide-Out and start by saving your neighbourhood. Level up your skills, collect incredibly weird superhero gadgets, and join a superhero team to save the world!
Mount Your Friends
Experience the extreme simulated sporting sensation that's sweeping our digital nation! Mount Your Friends is a fiercely competitive sporting event for you to play with your friends in the contextual security of your own home, assuming that your home is not composed of sexual innuendo.
Real Pool 3D - Poolians
Real Pool 3D (Poolians) is one of the best online pool games. Play against the computer or real players all over the world! It supports 8 different types of pool games and team play mode.
SimAirport
Build & Manage Your Airport. An International Hub or a Regional Masterpiece -- it's up to you. Buy more land to scale out, or escalators to scale up with MULTIPLE FLOORS. You're in full control in this modern business management tycoon!
Guild Quest
You’ve just bought yourself a new island and it’s time to fill it up with QUESTS! Collect guildians, upgrade their guildhalls, and unleash them onto your own custom quest lines.
Business Tour - Board Game with Online Multiplayer
"Business Tour" is a free to play multiplayer tabletop game. Build your monopoly with friends. Complete daily tasks, compete against the other players and receive trade items rewards!
Anarchy Arcade
Turn your entire digital life into a game. AArcade is a 3D desktop that launches shortcuts to absolutely anything you like. Join the anarchy of the persistent online metaverse, or remain in your own private reality. Casual in-game building features, plus hundreds of thousands of addons.
King Arthur's Gold
Would you enjoy building CASTLES, traps and siege machines in MULTIPLAYER? And then undermine your opponents castle and collapse it with 2D PHYSICS & DESTRUCTION?
Head Goal: Soccer Online
Play with your friends an online multiplayer soccer game with 100% physics-based gameplay where you control one player.
Witchtastic
Witchtastic is a challenging 2-4 player coop game about brewing and delivering magic potions as fast as possible. Take on the role of aspiring witches and experience charming adventures. Need a break from all the yelling of your friends? You can practice in a single player campaign as well!
Overcooked! 2
Overcooked returns with a brand-new helping of chaotic cooking action! Journey back to the Onion Kingdom and assemble your team of chefs in classic couch co-op or online play for up to four players. Hold onto your aprons… it’s time to save the world again!
Rec Room
Rec Room is the best place to build and play games together. Party up with friends from all around the world to chat, hang out, explore MILLIONS of player-created rooms, or build something new and amazing to share with us all.
UNO
UNO makes its return with new exciting features! Match cards by color or value and play action cards to change things up. Race against others to empty your hand before everyone else in Classic play or customize your experience with House Rules.
Teeworlds
Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!
ASURAJANG
ASURAJANG is an online action PVP game that anyone can enjoy. It features an easy-to-pick-up Battle Royale mode with trendy Anime-style characters and combat that packs a serious punch. Pick your favorite character and engage in strategic battle among 33 players to claim victory!
Fallout Shelter
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.
Pit People®
In this fast-paced, turn-based, co-op adventure you'll quest and explore, find awesome loot, customize your fighters, and recruit strange species! Come master your destiny in this strategic game of positioning.
Critter Crunch
Using Critter Crunch's 'Food Chain' mechanic, players will eat their way through a smorgasbord of levels and gorge on a feast of modes, including Co-op and Versus multiplayer.