Posted July 04, 2015
gunsynd: Buy at Gog as with the sales you'll do better than you would at Steam.
And it's DRM free at Gog,prices are better in the long run at Gog.
Witcher 3 is DRM free at Steam too. You only need Steam to downlad it(Steam is like the GOG Downloader or Galaxy in this example) and after that copy the game to a different place on your PC (or any other PC) and start it (without Steam). And it's DRM free at Gog,prices are better in the long run at Gog.
http://steamcommunity.com/app/292030/discussions/0/617335934149496447
http://www.reddit.com/r/Steam/comments/36jejj/the_witcher_3_can_be_run_from_its_exe_without
There are more DRM free games on Steam too. See this link for a list:
http://steam.wikia.com/wiki/List_of_DRM-free_games
http://www.gog.com/forum/general/list_of_drmfree_games_on_steam/page1
For DRM free games Steam is like GOG Galaxy.
But if you want to support the devs better just buy it here.