Yeah, that seems to be it. I just tried to make some space but it's not helping. I'm so confused by this. I have no trouble running heavier games that should be using much more RAM.
Just remembered that this game exists and can happily say that the newest version runs flawlessly on my PC with the highest settings. No idea what was wrong with the old build but I'm glad to see my computer wasn't the issue and isn't simply too weak to handle it.
Great game from what I could tell with my first test. Will look into it further.