Sorry to hear that. I hoped that game itself give you idea how its meant to play. See, book on the left bottom is actually presents your keaboard. If you use letter on that wave it would be unavaileble until next wave. Fulling green crystall indicate approaching next wave. thats all game. Maybe i should written rules more properly.
I wanted to make WebGL build! It would be perfect! But my unity crashed on attempt and now I cannot have access on game at all ! Had to load build that have on me on that time. And I thought that you cant change game after deadline. Or not?
But before my next jam I should figure out what went wrong with web build. Thank you for comment.