Antiriad

A passive and peacful society established on Earth by the year 2086 has its idyllic existance shattered by an invasion of an alien attack force. The populace are sent to work in the aliens' mines. Some rebelled, but one stood out as the most hardy and courageous. Named Tal, he was instructed by the elders to explore the land in search of the legendary item which humans had
worked so hard to perfect. This item is, of course, the eponymous Sacred Armour - an anti- radiation (Antiriad) suit which renders the wearer impervious to just about any form of attack. As Tal your first objective is to find the armour, and then somehow overthrow the alien regime. Once you've managed to get hold of the armour, the next problem is to seek out the various items which will make you even more magnificent - anti-grav boots, particle negator, pulser beam and implosion mine are the vital elements. The implosion mine is perhaps more important than any of the other items. This is the object needed to destroy the aliens' base. 

Quit                    - Q
Running jump            - Fire while running
Throw rock              - Fire while standing
Pick up object          - Crouch in front of it
Enter armour            - Walk in front & face outwards
Leave armour            - Run left/right