game sharing with xbox

i have two accounts on my xbox, one has save the world purchased and installed, and that account is my home xbox, in the past i have been able to play save the world on my other account, but since the update where save the world was removed from the game select screen, that is no longer the case. is it still possible to game share save the world between two xbox accounts, if not, when i go onto the account that does not have save the world, it asks me to input a 25-digit code, where do i get this code from, save the world is no longer in the xbox store and there is no way to get a code from my other account, thanks in advance.

:)