Joypolis (Japanese: ジョイポリス, Hepburn: Joiporisu) is a chain of indoor amusement parks created by Sega and ran by CA Sega Joypolis. Beginning on July 20, 1994 with the original location sited in Yokohama, Japan, Joypolis centers have since opened in several cities in Japan and later China. The parks feature arcade games and amusement rides based on Sega's intellectual properties, original themes, and licenced franchises. Alongside the predecessor Galbo venues and the overseas spin-offs SegaWorld London and Sega World Sydney, they were officially referred to under the "Amusement Theme Park" or "ATP" concept by Sega in the 1990s.