is there a way to revert to older versions of the game? I really wanted to see what the older versions were like thanks in advance
The oldest version you could get is version 0.3.0 according to the following Wiki page; that build was released in August 2013. You may have seen beta builds dating back to 2012, but those weren't made available to the public as far as I am aware of.
I have a copy of the 0.3.1 setup exe, but I can't find the serial number to activate it. The only key I have is the steam key, and that doesn't work, so it's pretty useless. If anybody still has their key I could PM the drive link. Edit: this probably wont work even with a key, as the key verification on the server side is probably long gone.
You can find the first techdemo on indiedb The second techdemo is available on our wiki Version 0.4.0.6 and 0.14.0.5 are both available on Steam, in the Beta tabs I warmly recommend to be careful if you download installers from unknown sources than the one I mentioned. We don't take responsibilities. Also please note that older versions won't receive support.