Hello,
I have a few house rules in mind related to door and quest objectives management, leveling your character, dungeon difficulty, monsters escaping, and finding equipments (maybe more to come). They are still early WIP but the goal is to allow the player to play longer with the same character, with slower and longer progression possibilities along with upgrading the difficulty.
The first thing i applied directly is, when you can level up a characteristic or a skill, instead of using +5, just apply +1. Or you can double or triple the amount of pips needed to upgrade a skill or characteristic.
By doing this, you will progress slower, and (provided you own some or all the expansions) you will need to make extensive use of the mechanics that the game offers beside leveling (Witchery, Crafting,...).
More to come, when i will have extensively play tested my ideas, but here is a start:
https://boardgamegeek.com/thread/2761181/whats-behind-doors
This game is so HUGE, that i want to house rule it to enjoy the game as long as i can with my beloved "Unnamed" Dwar Warrior character :-)