Steam doesn't require use of its DRM either, and it's well-known that several titles don't have any: https://steam.fandom.com/wiki/List_of_DRM-free_games https:

Steam doesn't require use of its DRM either, and it's well-known that several titles don't have any: https://steam.fandom.com/wiki/List_of_DRM-free_games https://steam.fandom.com/wiki/List_of_DRM-free_games