This was FANTASTIC! It's now sharing a spot with my other favorite game so far in the jam. Quite addictive, played it to the end although I was falling asleep last night. Very witty and endearing party banter, very nice combat mechanic, great exploration, what can I say? Got no negatives to complain about.
One balance issue: Not sure if possible, but there could be scenarios where you can't complete an encounter due to not having anyone with high enough damage to overcome armor. When fighting the Alien Explorer, I had just one character that could do 1 damage to him on a single roll. Not sure if you account for that when randomizing mobs so that it's always possible to defeat them, but just something to be aware of.