ah, you can't actually download this for Chromebooks, unless you enable linux development platform and use something that mimics windows exes like Wine...
so the game is not made in Source, right? even if it has plenty of Source sound effects and feel (the crouching, sprinting, etc.) and the great “Node Graph Out of Date, Rebuilding…” it’s not a Source game?
this is still bloody good as we keep in mind that this entire game was made in 4 hours. Most AAA games take years to make some cash grab DLC-infested ingame purchase nightmare