I had a lot of fun playing your game! Congrats! I cleared 23 doors, I think that might be good!
The core design got me really interested! I like the idea of moving characters around and combining them. Really got me hooked. Loved the descriptions of each "adventurer". The graphics were on point. I really liked the design of the adventurers (they are really cute) and the enemies, they blend well together.
I kinda forgot what the abilities of each adventurer does, it'd be cool if in the info tab while playing you had that info as well. I feel it would also be good because there are many different adventurers that you can gather and they were introduced at the same time, so it was difficult to remember exactly what they do.
PD: Got to 25 on my second playthrough!