King's Quest VI - Heir Today, Gone Tomorrow © 1994 Sierra On-Line, Incorporated.
The back cover of this Amiga version contains the following information: "Beautiful graphics in 256 colours or 32 colours (two versions available)." but the game was released only in 32 colours version. Sierra originally planned to release a 256 colours version but decided that 32 colours version looked so good already so they shelved the idea.
The game was ported to the Amiga by Revolution Software, though the company wasn't credited on the box or in the manual. This is why this version uses Revolution's Virtual Theatre engine instead of SCI.
Game's ROM.