Type the code during play:

Code - Result

[Strg]+[Pos1] - each weapon for an unlimited period
                for each shelter
[Strg]+[Bild on]- the force of gravity by 1 m/s increase
[Strg]+[Bild off] - the force of gravity by 1 m/s reduce
[Strg]+[Bild auf]+[Bild off] - the normal force of gravity


by unknown