Zoning out? Can't concentrate on your studies?

May I recommend the Arkham City soundtrack? Also, Skyrim.

Final Fantasy 7, 8, 9, 10

Try Dark Cloud's amazing soundtracks, I love Black Knight Pendragon's Music, Ice Queen La Saia's, Divine Beast Dran, and Wise Owl Forest. :3

There are even some soundtracks that I find to HELP concentration. Mostly I use them for running, but ambient music in the background while studying does help

I'll put in a word for all songs made by Two Steps From Hell, Enya and the album "The Freak Inside" (Made by a Thomas with a long surname).

Definitely Assassin's Creed soundtrack, Metal Gear Solid ,Forza Horizon and CoD MW2 by Hans Zimmer

scott pilgrim vs. the world game soundtrack or megaman x4 soundtrack

Lets talk about flappy bird guys.