
libtorrent:
The client sometimes downloads some stuff at login. It could use a torrent to do that instead of just hitting the server. No need to write p2p code from scratch, something like libtorrent should do the trick. Additionally, the download will most likely just max out the bandwidth of the user since it will be extremely well seaded.
zeronet: https://zeronet.io/
zeronet is a cool system for p2p websites. They are various limitations. But it would be nice to have some of the websites on the zeronet network. A static copy of the wiki and forum would be appreciated. At least I would use them. Because they are so few websites on zeronet (very young project), it will also give additional advertisement to the game.