I know the Keen series, Duke Nukem and Jill of the Jungle
aren't abandoned.
Megaman is ESA protected.
Lode Runner is abandoned, according to the oldwarez list.
Same for Turrican 2.
Same for Framed.
Same for Bard's Tale, although 1 isn't listed.
Aces Of Europe, can't find it. If you mean Aces Over Europe it's ESA protected.
As for Tankwars, no idea.
Cyril Cyberpunk, not on the oldwarez list. Reality Studios, not on the ESA-list either, but that one's outdated, I believe?
Bifi 2 - Action in Hollywood is freeware, and should go on AR.
And I don't know if the site's interested in german games. Propably only if they're only available in that language (Most of them are difficult to find anyway, and I'll leave that to a better searcher :P ).
Pfew, that's all, I believe
Final edit (I hope): Yes, you should contact an admin about this