By that definition, a CD code is DRM too, as is a codewheel, and there has never been a time without DRM. Meaning, such a definition is useless
Here's a list (not sure how up-to-date):
http://www.gog.com/forum/general/list_of_drmfree_games_on_steam/page1
Because in 3465375634756234 years from now, or a few less, when Steam dies, noDRM games will still be running.
I already knew I'm old but I didn't know I'm a nobody too !It's just become accepted that nobody cares anymore.
I'm just surprised that Namco Bandai plays along with that. But yeah, the gog.com version it'll be.