I haven't played this game in so long... So what's up ? ^^
I would like to ask, why are there two versions ?
=> Are v0-27ex and v0.49 meant to be downloaded together or are they two separate things ?
So the reason for the two versions is that v0.27EX is a polished, single level of the game, close to the final gme's quality (full voicework, start to finish playthrough with cutscenes, story variants, finalized powerups, etc.)
v0.49 is a patreon build though that's meant just to show progress on the game, so it's very "janky" by comparison, no voicework, unfinished maps, things like that. It too is a single level, though, as all demos for the game are single levels; we're saving the versions with all the levels connected for beta testers and the final game.
(The reason for splitting the levels is because if we make a small change to one level, we didn't want to have to add that change to every other level, every time we made a change, which would have cost us many, many hours of dev time, instead of just doing all the final changes in one shot like we're doing now.)
All that said, due to v0.27EX being a polished version of the
original v0.27P demo, that makes it actually the "newest version" of the game, despite it being numbered lower.
tl;dr
v0.27EX = polished single level demo
v0.49 = unfinished/janky single level demo