changelog:
0.8:
  changed resolution to 1024x768
  bezitmask files
  some big information pictures
  slower dieing & repairing things
  lots of new weapons and enemies
0.7:
  campaigns
0.6:
  stories and levels
  more things to buy
  and such
0.5:
  graphical inventory
  more fun with random sized and colored things
  explosions
  all kinds of tweaks and bugfixes
0.4:
  created a changelog
  ported everything to opengl
  started to have fun with rotating, random coloring and hardware alpha-blending