You will get the following four games:
BEEP - Very positive
Polarity - Very positive
Camera Obscura - Positive
Out there somewhere - Very positive
Great games for those of you who like platformers/puzzle platformers etc. Pretty cheap for 4 engaging games. Polarity is a lot like portal so if you liked that give it a go.
Really worth looking at as all of those games have at least a positive rating on Steam.