what kind of boostsers can you really use and collect during game to really unlock this one ? i tried several tries with some combinations but i cant make it work

Why is F12 not working? I cannot take a screenshot in Steam in this game.

These 2 achievements appear to be broken as far as I can tell? I've killed at least 250 enemies with Armageddon, I would estimate in the game where I got to level 42, that I did about 250 in that one alone, but it has not unlocked. I've used every booster and weapon type, and also just used them all in a single game just to make sure that wasn't the problem, but have not received omniSCIENCE either....

Tried to load this up, keep getting the following error:- "Extracting file failed, it is most likely caused by low memory(low disk space for swapping file) or corrupted Cabinet File. Is the game supposed to be a single running file ? Any help appreciated !...

Dear DEV, the Linux-version does only download zero bytes. I see two options here: a) fix this ASAP and verify that it really works OR b) remove the Linux/Steam-OS-logo from the page and I get refund. I'd prefer a). Thanks, LC