A top down shooter where the maps are covered in darkness and light is your enemy, as 4 players compete in a deathmatch to be the best!

Play with friends in person or remotely! A collection of party games to break the ice, have a laugh, and hang out playing. You can invite up to 16 friends to play with you! Just send them a link and they can join on their phone, or any device with a modern web browser. Start up At The Party, jump into a party with friends, and you can play any game DLC that anyone in the party owns (the game is free to play so your friends can play without buying the game DLC). If you are all in the same room, you can set up a TV, laptop or other screen for everyone to see as well. If you are in separate places, don't worry, you don't need to stream the game (but you can if you want!)—anyone can load up their own spectator view, or just play using only one screen. You can play At The Party directly on Steam, but also <a href="https://steamcommunity.com/linkfilter/?url=https://atthe.party" target="_blank" rel=" noopener" >through the website atthe.party</a>, so you can easily play from your phone or any other device with a modern web browser. If you play on the web, remember to sign in with Steam so you can play the games you own!

Atlantica Global is a free-to-play (F2P) massive multiplayer online role-playing game (MMORPG), with a tactical combat system. Venture out in to the world of Atlantis where you'll find otherworldly monsters, amazing gear, and even more battle-hardened adventurers like yourself.

ATLAS: The ultimate survival MMO of unprecedented scale with 40,000+ simultaneous players in the same world. Join an endless adventure of piracy & sailing, exploration & combat, roleplaying & progression, settlement & civilization-building, in one of the largest game worlds ever! Explore, Build, Conquer!

Recruit a team of fierce freelancers and experience rogue-lite gameplay like never before. The ever-new constellation of enemies, layouts and loot make every run unique. You’ll have to work together to survive together - so plan your moves wisely.

Enter the world of ATLYSS, a Singleplayer/Online RPG where you can fight with or against friends in a surreal world filled with creatures beyond comprehension. Customize and progress your character(s), complete quests, and discover strange locations.

ATOMIC PICNIC is a 4-Player co-op shooter roguelite! Get together with up to 4 friends, defeat hordes of monsters, and upgrade your powers to survive in an anime-style wasteland.

Welcome to the free version of Atomic Picnic – a fast-paced roguelite adventure! Explore a vibrant and dangerous world, filled with hordes of terrifying monsters and adorable yet challenging bosses. As you progress, you'll gain powerful skills that will enhance your character's firepower and give you the edge you need to survive. In Atomic Picnic you and your friends try to survive non-stop waves of enemies in a 3D Third-Person Perspective, with fast-paced gameplay that completely subverts this nascent genre. <h2 class="bb_tag">Air Gear Mechanic</h2>Every adventurer best friend is the AIR GEAR, a tool they use to reach heights and distances otherwise impossible. With this tool, you can zip and dash around the map, using the terrain's verticality in your favor. Every decision in Atomic Picnic can lead to a totally different build and playstyle. The more upgrades you pick and combine, the stronger you become. Every run is unique! Picnic with up to 3 friends in online co-op mode! Strategize and level up to defeat enemy waves and conquer objectives – but beware, coordination is vital. The game is still in development, but we want to encourage everyone to participate in it! Send us your feedbacks!

Atre: Dominance Wars is a 4X real-time strategy with a twist of God-Game elements. It offers a fresh experience in the genre: original dynamic world, unique races, and lore-based detective work. Become an almighty Elder, rise to Godhood and conquer the world that’s being torn apart by a dark magic only you can stop… if you can uncover the Truth.

Battle is joined between the man-eating Titans and Eren and his companions. Experience the illusion of being in the anime, and controlling the flow of the story. The story from the anime, with a few original twists, is yours to experience!

Cooperative Multiplayer <ul class="bb_ul"> <li>Revive, heal, damage boost, raise defense, and remove debuffs from your allies. Reduce the defense and remove buffs from the enemies. </li><li>Online multiplayer with no limit on the amount of players. </li></ul>In-Depth Mechanics <ul class="bb_ul"> <li>Clear dungeons to gain Ability Points, and unlock new abilities. </li><li>Gain Skill Points when leveling up, and use them to enhance those abilities. </li><li>Find synergy between abilities and skills. </li></ul>High Difficulty <ul class="bb_ul"> <li>Challenging game mechanics to master. </li><li>Get swarmed by enemies; each with differing attacks. </li><li>Face hard hitting bosses, with several devastating attacks. </li><li>Avoid environmental dangers, such as lava and chasms. </li><li>Survive with a fragile amount of HP. </li></ul>PVP <ul class="bb_ul"> <li>Battle in a free-for-all with other players. </li><li>Respawn instantly for constant action. </li></ul>Fast-Paced <ul class="bb_ul"> <li>Immediately get back into the action after a game over, with frequent checkpoints and no loading times. </li><li>Damage enemies/bosses and avoid their attacks, at the same time. </li><li>Enemies and bosses are always vulnerable, and have attacks that require quick reflexes to avoid. </li></ul>Customization <ul class="bb_ul"> <li>Set your name, and its color. </li><li>Gain Equipment Points by leveling up and completing dungeons, to unlock and equip upgraded swords and shields. </li></ul>

Aurendor is an open world survival game set on a large island that requires players to test their survival and crafting skills. Players must gather resources, cook their food and fight dangerous creatures on the island. 
 
There are many different types of resources in the game. Trees, stones, mines and plants are vital to players' survival. To collect and use these resources, players need to craft different tools and equipment that they can use skillfully. 
 
Players' cooking skills also play an important role in the survival process. Players can replenish their health points by cooking various dishes. 
 
Aurendor offers players the option of multiplayer gameplay. Players can play together by cooperating with or battling other survivors. You can form a bigger and stronger community by teaming up with your friends, or you can take control of the island by fighting your opponents. 
 
The game's graphics and sound effects have been carefully designed to bring players closer to a real survival experience. Players can enjoy a realistic environment while fighting creatures or interacting with nature. 
 
Aurendor is a great option for players who are interested in survival and crafting games. By playing together with your friends, you have the chance to build a stronger community on the island or fight your opponents.

Build anything you can imagine in an infinite world with mountains, rivers and forests. Use tools like copy &amp; paste, undo, redo and other building tools to shape the world from your imagination.<h2 class="bb_tag">Copy &amp; Paste</h2><h2 class="bb_tag">Fill in Area:</h2><h2 class="bb_tag">Undo &amp; Redo:</h2>

Get ready, the zombies are coming! Avatar Raiders is a viewer game for Twitch streamers. Your viewers can join the defense against endless waves of zombies. Let your viewers join via your chat, throw emotes or grenades and compete together against a mighty army of super cute zombies.<h2 class="bb_tag">Attention! You must be a Twitch broadcaster to use this product!</h2> Usage: You can include Avatar Raiders as a transparent overlay in your broadcaster software, as well as display it as a full-screen game. Just select the appropriate background scene for your lobby and match, and you're ready to go. No matter if you want to stream the game permanently or if you want to start a match with your viewers only at certain times. The control is yours. Avatar Raiders is also available as a category on Twitch, by the way. Viewer integration: Avatar Raiders connects to your Twitch chat. Your viewers can join a round via chat commands. During the preparation phase, teammates can equip themselves with grenades and use them during the fight. Procedure: A round runs in two phases. Phase 1, Preparation. Your spectators join the game and equip themselves while the countdown displays the remaining time. If you wish, the game characters can also react to chatemotes from the players during this time and throw them in the air. Phase 2, Defense. Teammates advance in waves of a maximum of 10 defenders each and try to stop the advancing zombie hordes. Who will manage to eliminate the most zombies and secure the settlement? Spectators can control when to throw a grenade of their character via chat. At the end of a game round, the points scored are posted once again in the chat.

A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.

The world has never been the same ever since the outbreak happened.
The year is 2032, after the outbreak began, various citizens began their escape from towns, and resorting to
making villages and camps in the woods.
The sources of the virus are unknown, nobody knows why it happened or why it began.
You, among many others, are a survivor who woke up in one of the settlements in the woodlands.
Beware of the zombies, some may be faster or stronger than others.

In the game, you will be managing your stamina, hunger, thirst, O2 and temperature.
Wear warmer clothes if you are in a cold environment, or cook some food with a campfire if you kill an animal and obtain it's raw meat.
You can craft items using the resources you collect in your gameplay, and make a crafting station to craft even more items.
Find a vehicle scattered out in the world and fuel it up with gasoline if it runs out.
With weapons, you can hold the T key to attach any attachment you'd like, as long as it is fit for the weapon category you are using.
Party up with a squad of 5 people (counting you) by clicking the plus icon on the lobby!
Chop down trees using your trusty crafted axe and make wooden planks to create walls and furniture, to create your own base!
Eliminate zombies, players, animals, and gain XP for all of it, you will also be gaining xp for your skill points, which can be used to unlock skills in the skill tree!
There are various options to choose in the character creation menu, from different races to hairstyles, you name it.
In the world, you will find humans just like you! (or not) and some of them may give you quests, or just hang out, or trade with you!

You find yourself in the role of a cruise ship that fell out somewhere in the Indian Ocean. You have to face unforeseen circumstances, get new experience every time in order to ultimately SURVIVE! You have to build a shelter, dive in search of sunken ships, defend yourself from hostile animals, grow crops, and much more.<h2 class="bb_tag">Key features:</h2><ul class="bb_ul"><li>Create your own unique character. </li><li>Look around the island you'll be on when you wake up. </li><li>Stock up on resources and food in order not to starve to death. </li><li>Build a shelter to get through the night safely. </li><li>Hunt. Get ready. </li><li>Build a raft and swim across to neighboring islands. </li><li>Explore and find an opportunity to return to normal life. </li><li>Get Steam achievements, become the top link in the food chain!</li></ul>

The year is 3587. Conflict spans the stars as huge robot armies are locked in an enduring stalemate. In their bid for galactic supremacy, they call upon the most powerful group of mercenaries in the universe: the Awesomenauts! Awesomenauts is a MOBA fitted into the form of an accessible 3-on-3 action platformer. Head out to the online battlefields together with your friends as an online party or in local splitscreen, and never worry about having to wait for an online match because of drop-in matchmaking!

Axon TD infuses a new layer of strategy into Mazing Tower Defenses. Typically, you build towers on the path to obstruct enemies and make the path longer. But what if you could take control of the map layout itself and expand things directly? In Axon TD, you're given a brush, and the map is your canvas!

First / third person multiplayer shooter with single and multiplayer AI bots and monster, premade and procedural environments.

Adventure with friends in this co-op card roguelike, bravely crossing the dangerous Azoove desert. Manage resources and communicate effectively to survive the journey and return the cursed book to the Library. Strategize and make it there in time to seal the evil fiend Ur'gan!

Azulgar: Star Commanders is a Sci-Fi open world sandbox game that puts you in a command of your own custom made space ship. Explore aftermath of the Azulgar event that reshaped the face of the solar system.

B3 will be a first-person VR shooter where you have to defend your base from waves of attacking monsters. The base is protected from the back and sides by mountains. On the front side, it has a wall with firing points. To protect the base, you need to move all around these points, using a teleport system. So, when you need to go to another point, you look at the flag above it and instantly teleport to the point. Monsters appear from the side of the desert in random waves. They attack the wall. After the destruction of the wall, monsters penetrate the base. The game is over when the first monster reaches the control point inside the base. There will be several types of monsters and they will require different tactics to defeat them.

This product is a Action Adventure Roleplaying game, with the rule set of a homebrew Pen and Paper adventure module, The game will have areas that have specific goals and tasks that needs to be completed inorder to progress a specific storyline. This game is a Class based multiplayer action adventure game that relies on the players skill in the games system, for the survival of the players character.

Best PC Online Coop Games

AT SUNDOWN: Shots in the Dark

At The Party

Atlantica Global

ATLAS

Atlas Rogues

ATLYSS

Atomic Picnic

Atomic Picnic: Prologue

Atre: Dominance Wars

Attack on Titan

Augury

Aurendor

AutoCube

Avabel Online

Avatar Raiders

Avorion

Awakened

Away From Life

Awesomenauts

Axon TD: Uprising - Tower Defense

Azeriom

Azoove

Azulgar: Star Commanders

B3

Babyl Chronicles: Crypt of Corruption

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