Draconus is a 1988 release on the Atari 800 by British developer Zeppelin Games. It is a platform game with more than a hint of Metroidvania about it.
Developed and published by Zeppelin in 1990, Santa’s Christmas Caper is a rarity: it is a Christmas-themed “Bullet Hell” shooter that is actually not too bad.
A British platform game that came quite late in the life of the Atari 8-bit computers (released by Zeppelin Games in 1990), Cavernia is a fairly simple left to right run-and-jump-a-thon but with nice presentation and decent controls.
Santa’s Christmas Capers is a Christmas-themed game, published on the ZX Spectrum by Zeppelin Games in 1990.