Here is a discussion where the author of the original 2048 game says that he was inspired by 1024: https://news.ycombinator.com/item?id=7373566
. Apparently the 2048 author hadn't even heard of Threes. He made a free game, and made the source available too so that others could learn from it and build on it. That's great, nothing wrong with it at all, but it is a bit sad to see so many people who didn't build on it to make something new or better but just put it on the App Store or on ad-filled websites as is in hopes to get rich.