You might try out Sword of the Stars or Dragon Age (this was mentioned before).
The former one is particularly 'gripping' in MP, the later has awesome between-character dialoges.
("And now we have a dog, and Alister is still the stupidest member of the party")
Though I'm from Austria, I am in now way whatsoever involved with patents,
I tried to look "AM 7738/2003" up @ patent search engine, without luck.
I just noticed that when I filter for Austrian patents the prefix changes to AT XXXXXXX, so I'm not sure what to make of the AM
FYI, there is a patched version flying around the openttd forums which implements cargo and passanger destination, which means that cargos and passangers want to go to a specific location not just to any city,
this gives the game much more depth