Zapper

Zapper was published by Eidersoft and written by Janko MrsicFlögel. It is loosely based on the well-known Arcade game Space Invaders. In the game, you are defending a planet from swarms of aliens descending from above - there is nowhere to hide, just you and your trusted laser weapon. Fast and furious, the aliens can get past you to attack again from above and the more you shoot, the faster they move. Featuring excellent graphics, the game is controlled by cursor keys or cursor emulating joystick. The main issue with the game is that you can only fire one missile at a time.

Advertised features included:

100% Machine Code game
8 Levels of Multicolor Graphics
Super Smooth High Speed Action
Sound and High Score
65K Code Length
Load Time 1 Min
Supports TV/Monitor
Joystick/Cursor

The program was originally advertised on its own (see the black inlay which was a larger format box), but in October 1985, Eidersoft started to bundle it with Eagle, for the same price.

Title: Zapper
Language: 68000 Machine Code
Author: Janko MrsicFlögel
Publisher: Eidersoft
Year of Publication: 1985
Platforms Suitable for: All Sinclair QLs and emulators
Commercial Status: Commercial
Price as at July 1985: £10.95
Reviews: QL User (October 1985), QL World (October 1985), QL User (December 1985)
Sources Available from: n/a
Latest Version available from: Unknown