I have very little hope that anyone remembers this game, but I am going crazy trying to remember it.

This would have been around the late 2000's or early 2010's. It was an early access game that I think I supported on a platform like kickstarter. It was an isometric dungeon crawler. It was all very simple geometry, maybe voxel based, and had a sort of tilt-shifted aesthetic to it. You would go from room to room, everything was randomized, and I think it was co-op? I also remember a tavern that you would always start at before going into a door (maybe a trapdoor in the floor?) to begin the dungeon.

I haven't played this game in probably a decade or thought about it since, but it has been stuck in my brain for the past week and I cannot remember what it is. I've already tried logging into kickstarter but there is nothing there, and I don't even know if it was on kickstarter. Hell, the game might have become abondonedware as I don't even know if it came out. It's a long shot but maybe someone here knows or remembers the game I am talking about?

Problem is, apart from the kickstarter thingy (and 2000/2010 feels way early for that sort of thing), it's the description of absolutely all the aRPGs ever.

So, dunno, Soldak stuff like Din's Curse or Depth of Peril ?

If it was indeed on KS, Indigogo (or elsewhere), you should be able to find it here:
https://en.wikipedia.org/wiki/List_of_video_game_crowdfunding_projects

Set the tab "Campaign end date" to "descending", and you'll get all the games from 2009 up.