This is just a dungeon delve. But here is a backstory for those who like something to make sense.
Adventurer's far and wide know about Gorthaur's Madness. Down the centuries, eager fortune seekers have been employed by successive inheritors of the Licorice Tower that guards the dungeons underneath. Now, these halcyon days may be drawing to a close. The current mage, Gorthaur XIV, has made it known throughout the countryside that he is looking for brave adventurers to rid him of a curse. His ancestor, Gorthaur, was cursed by a major devil after Gorthaur helped overthrow an attempt to take over the earth. Each successive generation has been tasked with building a dungeon level underneath the tower and stocking it with monsters, or their soul will belong to Hell when they die. Thirteen levels have been constructed in thirteen generations. It is said that once the fourteenth dungeon level has been constructed, then the curse will be broken for all time.
Gorthaur will rent lodgings to you, and set aside a vault for any treasure you bring up. He asks for a 10% cut of treasure by value, and will sell you food and weapons from his general store and blacksmith. He will also identify magic items at a cost of 100 gold per item, and may even buy them from you. He needs a party of adventurers to get down to the thirteenth level, find a 10' section of blue stone flooring, and then guide him safely there, as that is where he will need to start digging a stairs to start making level 14. He has no clerical spell services available. There may very well be people for hire to help augment the party - danger and opportunity attract many types.
I will attempt to use Delving Deeper by-the-book, with no house rules (although I am sure we will need rulings and clarifications). I do not wish to use any optional character races, classes or rules for this dungeon.
I plan to have each character generate a stable of characters from which they can draw