Grandslam Interactive Ltd
Company
Also worked as Argus Press Software Ltd, ASP Software Ltd, Bug-Byte Premier, Bug-Byte Software Ltd, Computer Tutor, Grandslam Entertainments Ltd, Mind Games, Quicksilva Ltd, Shades, Starcade, Unique
ZXDB records no credits or publishing for this company. It catalogues software authorship and publishing, and has no way to express hardware or industrial design.
Same person at Spectrum Computing