Nice game! Me and a friend of mine ended up racing the game, seeing who would finish it first. The texts reminded me of Cultist Simulator: they don't make a lot of sense at first, but they are really intriguing and keep you playing to see where will it all get. The music fitted nicely too. I agree with what everyone else said, but it wasn't a big deal for me (my keyboard has a clicking macro hahaha).
The only "issue" we found, which is really minor, is that I believe this upgrade can't be bought because of the cost. This didn't affect the gameplay and I don't mind it. Just thought you might want to know this.
Once again, good job: It was an enjoyable game!