Crystal Kingdom Dizzy is an adventure video game featuring the character Dizzy released in December 1992 by Codemasters. The Oliver Twins—who were heavily involved in the design and programming of previous Dizzy games—had less involvement with this one. The game was the last title to in the core Dizzy series until the release of Wonderful Dizzy in 2020. The Spectrum version of the game knocked Rainbow Islands from the top of the UK sales chart, and prevented Street Fighter II from being number one. This version was voted number 70 in the Your Sinclair Readers Top 100 Games of All Time.