Game with good graphics, just to relax and hear your music while collecting blocks procedurally generated by the song your listening to. Recommended!

Hacking game! Simple graphics and complex gameplay. If you're into that stuff of stealing information and being illegal, that's a good option!

Probably one of the best multiplayer experiences you can get. Interesting strategy/action/2D game in which you have lots of levels to play with friends.

Easy to learn. Altitude is a 2D game where you control airplanes in different gamemodes from Soccer to Deathmatch! Really addictive, recommended!

Good graphics, easy to play, good story. One of the most immersive horror experiences you can get on Steam. Recommended.

Simple to play and create with friends. When you don't feel creative the Workshop has a lot of content worth to be checked out!

Combining spells with different elements in this game just brings to it an unique gameplay. Pretty, awesome coop and original. Recommended.

Runs on Source, simple to learn, fun, intriguing, good multiplayer game. It can remind you of Trouble in Terrorist Town, but classier.

A must have for parties! It's an original racing local multiplayer game, and easy to learn and to configure with most controllers. Recommended.

Arguably the first MOBA and certainly the most complex one. Dota is a 5v5 destroy-the-base game. Every match is different, and you can never tire of it.