Thomas was alone is about shapes.. Yes shapes. It has a narrator that gave these shapes (quadrilaterals) a personality, a character, and they have names. This is a puzzle game that requires for the player to switch between the quadrilaterals to be able to complete each level. Each quadrilateral has different abilities and such.
[Youtube]http://www.youtube.com/watch?v=2rfW-Rk8lp0[/media]
Steam download: here
This game has actually become one of my favorites due to its humor and great storyline.