Diamond Drop

Diamond Drop is a variation of the old Atari Arcade game Avalanche. It is keyboard controlled only. This game was developed by Eric Brandon and published by COMPUTE! Publicatins, Inc. in COMPUTE! 1983/09 (Issue #40), as well as COMPUTE!'s First Book of C64 Games

It was also released by Alpha Software Ltd. and released in Europe under the name Collection Day and published as part of "The Big One" Collection.

Also released in Norway under the name Diamant Slipp by Data-Tronic