Every time I play this game, I always have a problem with alot of crates and no keys.Can you make it so the foes drop keys?
In a word, yes. It’d probably be pretty simple for the Devs to do, but they won’t.
They want you to spend money to get pramins for keys, or just show up day after day for that free pramin, so they probably won’t ever make keys a drop. There used to be a lot of posts like this, back when the boxes first came out.
However, there is that one free pramin a day, so save up to get a key or two, and beyond that, nothing in the boxes is essential. You can easily play the game without ever touching a box.