It's funny to me that people are asking for Steam or GOG codes in retail copies of The Witcher 3.
No DRM mean no codes in the box, no activation of games, no online activation of games, the games are not linked to no profile or account. So don't ask for DRM in a non DRM product.
The Witcher 3 retail = 1 game. Steam code = 1 game. GOG code = 1 game. If the retail product comes with a Steam or GOG code then that = to 2 games. And you ain't going to get 2 games for the price of one.
If you want the Collectors edition for the all the goodies but you also want the Steam DRM version, then what you have to do is, sell the retail game and buy the Steam version. Yes you can sell your PC version of The Witcher 3. That option is made available because of no DRM. That is a very important feature that comes with The Witcher 3.
Thank you CD Projekt RED for no DRM. The retail PC gaming market needs no more DRM products.
Technically no DRM means unlimited games.