Resident Evil was created by a team of staff members who would later become part of Capcom Production Studio 4. The inspiration for Resident Evil was the earlier Capcom horror game Sweet Home. Shinji Mikami was initially commissioned to make a game set in a haunted mansion like Sweet Home, which Resident Evil was originally intended to be a remake of. The game was initially conceived as a first-person shooter, but soon the gameplay system inspired by Alone in the Dark was adopted instead. According to Mikami, "technically it wasn’t good enough." The game's engine was a modified form of the engine designed for the SNES game Goof Troop, which Mikami worked on as a game designer.