SINCLAIR ZX81 Flight Simulator Computer Cassette Game Psion 16K RAM

Sinclair ZX81 16K game - 3D DEFENDER by J.K. Greye Software, Gamestape 5 - 1981

Sinclair ZX81 16K game - Othello By CDS Microsystems

Sinclair ZX81 16K game - BACKGAMMON / DICE By PSION - Working

Sinclair ZX81 16k game - CATACOMBS by JK Greye Software, Gamestape 3 - 1981

Sinclair ZX81 16k ZX80 16k - Fantasy Games - see description

Chess by Micro-Gen for the Sinclair ZX81 Cassette Game

Sinclair ZX81 16k game - CATACOMBS by JK Greye Software, Gamestape 3 - 1981