If you want the benefit of a DRM game, yes. Otherwise you still don’t own the game. GOG has removed games from libraries before and will again at some point in the future.
Which games have they removed from libraries? Typically, these storefronts (including GOG) will remove games from sale, but not from the libraries of customers who already bought them. For instance, they deep discounted WarCraft 1 and 2 before Microsoft requested their delisting, but I’ve still got them in my library.
If you want the benefit of a DRM game, yes. Otherwise you still don’t own the game. GOG has removed games from libraries before and will again at some point in the future.
Which games have they removed from libraries? Typically, these storefronts (including GOG) will remove games from sale, but not from the libraries of customers who already bought them. For instance, they deep discounted WarCraft 1 and 2 before Microsoft requested their delisting, but I’ve still got them in my library.