I was thinking about the proofreading myself. I noticed a number of instances where a preposition was missing as well. It's a minor detail and the dialog is still understandable. I also wonder why so much of the spoken dialog ends with a question mark.
This is a fun and imaginative game. Well done. Looking at the development log and how long it has taken to get to day 17, I hope it doesn't take years of game development to get to Elysium. I would hate to see the game development abandoned along the way.