Yeah these demos usually last for that amount of time I am aware. I just end up being a madman and try to max most of them out lol
But seriously the clankers spawning not spawning sometimes at the beginning is the biggest thing and I am glad that is being fixed. I suspect this isn't the problem in the main game after a while. Excited to see how it develops!
Tbh the weapon mechanic is really intriguing makes me want to play and unlock more