The creator started the game a long time ago. However he got deployed in the military and had to drop the game for a long time. So I geuss the game had been on a long hiatus, with him only recently picking the game back up. As a result, alot of the game could be considered a bit out-dated.
I dont know about military! Crouler never says, or said, anything about that. One of last posts says, he started the game when was a teen and now he's so busy with work/life he hasn't had the time to give the game the same attention. Prior to that the game saw 10 day updates on his blog. Actually before that Crouler said he moved, couldn't get his computer equipment and or it was damaged, then came covid.
I give him credit, he seems determined to finish out the game one of the very few, he's not doing it for money then abandoning the project after 1-2 years, or by waiting 2-4 months to release little if anything in updates. (Altho the 10, give or take day updates had little content but at least it was updated regularly!
After reading the change log to this update this seems like it has a good chuck of playable content, so it seems he has found some time to keep working on the game.