New update from the dev, which surprised me.
Apparently the dev has been planning some updates for a while, but was trying to get some work done on fictional girls first. Now that he's made some progress there, he's turning his attention back to this. None of it's out yet, but I think it's going to be a free content update - or several - that he releases as it's ready.
Planned: 2 new dungeons (with some new enemies, including a fly in the first one, check attachment) and 8 new game overs, with cgs (base game currently only has 7, so this is huge.)
Really looking forward to this myself.