Cave Story+ is free to own forever.
As long as you grab it before 15:oo UTC on the 7th September.
Cave Story features a completely original storyline wrapped with personality, mystery and hours of fast-paced fun. Cave Story is an action-adventure game. Overflowing with unmatched charm and character, Cave Story takes you into a rare world where a curious race of innocent rabbit-like creatures, called Mimigas, run free.