I actually made it up to 4k I think before the game hit me with four words at once. Is the secret supposed to be revealed through what you're meant to write?
While I enjoyed the game, it might be interesting if there was more back in forth in combat, (type a word to attack, then type a word to defend maybe?) instead of it just being you miss a word you die.
I also thought the writing sound that plays when you type was a bit too loud.