Really interesting concept - really like the idea of allowing freeform curses/spells. I tried some weird wordings and still managed to blast a few doors open.
I wonder if there is a way to incentivise experimenting with different spells. Right now, once you create a spell that you know works, its just about typing it quicker than the world collapses. Maybe if you had some kind of way to compare sentence similarity you could power down similar curses.