The Basement Collection will include Time Fcuk, Aether, Spewer, Grey Matter, Meat Boy (flash prototype), Triachnid and a locked, secret title updated with new content, soundtrack, difficulty modes and achievements. Each game will come with bonus content such as development sketches and early prototypes, and The Basement Collection will feature four "very large bonus unlockables that should make fans of my work quite happy," McMillen writes.
The Basement Collection will also come with a free soundtrack with bonus indie remixes. Try out (i.e. "play") all of these titles for free via McMillen's Newgrounds page now, if you can spare a moment for puketastic, interstellar, time-traveling fun.