Also known as: Little Busters! EX (ero edition), Little Busters! Ecstasy (ero edition), Little Busters! Converted Edition (PS2, PSP, PS Vita, PS3)
Little Busters! is the 6th game developed by Key (Kanon, Air, Clannad), originally released by Visual Art's as an all-ages visual novel for the PC in July 2007. An adult version subtitled Ecstasy (EX) was also released one year later, followed by console ports for the PS2, PSP and PS Vita, as well as a side-story eroge called Kud Wafter. The title Little Busters! comes from a group of friends in the story, which the protagonist - Riki Naoe - has been a member of since childhood.
Producers, official website and other details: VNDB