You will get the following games:
1 Heart - Mostly positive (Steam User Reviews)
Betrayer - Very positive
Guns N Zombies - Mostly positive
Kraven Manor - Mixed
Montague's Mount - Mixed
The Path - Mostly positive
The Moon Sliver - Mostly positive
The Samaritan Paradox - Very positive
Have fun.
Betrayer on it's own is worth the money. One of the few small time games I've actually sat down and played through to the end, and I own over 1.2k games on Steam.