dyscode: Perry Rhodan, Adventure -50% €2.50. DRM same as above.
It's not particularly good as an adventure, since if you are not familiar with the PR Universe you won't get it all but for the price still worth it, IMHO.
DukeNukemForever: I can't remember which drm exactly was involved, but while there is no online activation (as far as I remember) it still needs a drm-driver to be installed to rub, which unfortunately doesn't work on modern systems. I bought years ago on gamersgate, but never played it :/
Edit: Checked my gamersgate account, you get a serial code, but as far as I remember there was no online actication. I also found the
thread ( it's in german, sorry) about the drm-problem. For Win7 you need to download and install the latest tages-driver from the tages-homepage, otherwise you get an error message and a crash directly after start. In the dark corners of the internet there are also cr... ahm "backup-patches" for that game, but it still needs the tages-driver. For that reason (I don't install tages on my system) I unfortunately never played it.
WOW thanks for the update! I'd never posted it if it mentioned Tagès.