A

Plain Sight is a multiplayer arcade game about suicidal ninja robots.

Fly through space, leap over planetoids and destroy opponents with your trusty katana.

Killing fellow robots lets you steal their tasty, tasty energy. Packed with spinach-like goodness; energy makes you bigger, stronger, faster and generally more awesome.

Being all big and badass is great, but in this game it doesn’t win you the match. It makes you a target.

To win, you have to convert your energy into points…

How do you do this? Simple. Kill yourself.

Bunch of Heroes is a humorous 4 player cooperative top-down shooter for Windows through Steam. The game has online co-op with up to 4 players.

The Bunch, is the most formidable team of fighters from different parts of the world ever assembled. In the game the Earth is under attack, An Alien Invasion is threatening all of humankind, with no regard to gender, color or nationality. And these nasty Aliens have a powerful Zombie Army.

Age of Empires Online (abbreviated AoEO), is a history-based RTS. The game is free-to-play—it is free for users to play, with the additional option of earning or purchasing premium content. Premium content may include access to many special items and blueprints, and more quests and features. Also, booster packs are now available, such as Defense of Crete and Skirmish. This former gives the player the ability to play in a survival type mode game, while the latter allows up to four humans versus up to four CPU opponents in a more traditional skirmish gamemode. (Soure: Wikipedia)

Krater is a squad-based roleplaying game set in a colorful post-apocalyptic world. It combines the combat mechanics of action-rpgs with the top-down view of the classic old-school RPG and RTS games. The game brings far into the future of a post-apocalyptic Sweden.

Counter-Strike: Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched 12 years prior.

CS:GO features new maps, characters, and weapons and delivers updated versions of the classic CS content (de_dust, etc.). In addition, CS:GO introduces new gameplay modes, matchmaking, leaderboards, and more.

Diablo III is the long awaited installment in the Diablo series from Blizzard. The gameplay is a genre-defining "action RPG" that is known for it's one click per attack, and extensive "loot" system which offers near limitless upgrades to weapons, items and armor.