End-of-year key cleanup

Just a few invite-only GAs for some keys that I've cleared out. Nothing special, some don't even give any CV anymore, but maybe some of you would enjoy them. They all end pretty early in the New Year, the earliest on 1st January and the latest on 6th January. If you want, tell me something happy. :)

System Shock 2: You Take The Very Same (less than 7) Characters In These words And Numbers And Add v
PixelJunk Shooter: ABCDE --- A=2+2, B=P, C=9-6, D=c , E=L
Skulls of the Shogun: puzzle
SPACECOM: z.W.G.m.5. (remove the .)
Hammerfight: 0Mjp?, ?=E