On the level below the Quest portal, there is another magic portal to part or a whole of another role’s Quest. Possibly this leaves off the home and goal levels, consisting of only the filler and locate levels, or only the locate level as a single-level branch, or else it removes the nemesis and artifact, removes the restriction on going past the home level, and gives the quest leader some insulting lines to offer to this competitor for the Amulet.

When you complete the Quest and get recognition from your leader, you get 5-10 points of Charisma, because now you have a great reputation as a hero.

The game should store the reason for your first alignment violation, so that when your quest leader tells you that you are not worthy to keep the quest artifact they can give a reason for it.

The quest leader either sometimes or always asks for the quest artifact back when you return with it, to replace the weird flavor in most quests that the leader is desperate to get the artifact back but is then completely fine with you adventuring off with it after retrieving it.

If you refuse to give them the artifact back, they turn hostile. If it’s a chance-based system, the chance might be dependent on your alignment record, so a character that has misbehaved is less likely to be found worthy of keeping the artifact. However, since you must have +20 alignment to enter the quest and get a massive amount of alignment from killing the nemesis, it’s questionable whether anyone’s alignment will ever be in a bad enough state to increase the chances. Luck has also been suggested as a variable that influences the chance, but most players will already have maxed their luck by the end of the quest.

In order to keep the player from just dodging the quest leader on their way out of the quest so that they can keep the artifact, various enforcement mechanisms have been proposed:

• Incentive-based; returning the artifact gives you +5 alignment record (and set to 0 if negative) and +3 to luck. Rewards should be better than the incentive of killing the quest leader to get the artifact back, or else penalties applied if you kill them (e.g. the artifact blasts you even though it’s your own quest artifact).
• Strict: you must show the artifact to the quest leader and have the quest marked completed in order for the invocation to work. Alternatively, the quest leader has the Bell of Opening and will only surrender it when you present the artifact, whether or not they demand it back. Or the quest nemesis has cursed the Bell and the leader will lift the curse after you show them the artifact.
• Delayed: you don’t have to go without the artifact forever, but the leader demands it back for some time so that they can fix whatever problem the artifact needed to solve. This could manifest as either a variable number of turns, or a requirement to go explore a certain number of new levels/area, before they’re done with it.

In variants where you can kill the quest leader to gain access to the quest: implement alternative dialogue for the quest guardians after you kill the leader.

The Arch Priest specifically offers to open up a magic portal to the Plane of Earth if you talk to him with the Amulet of Yendor, as a Priest benefit, to skip the last dozen or so levels of the Dungeons of Doom.

If you attack a peaceful monster in sight of your quest guardians and leader, they give you a warning rather than instantly becoming angered.

When you complete your Quest and return the artifact back to your Quest leader, and if you return to them with the Amulet, you are rewarded with a (one-time) hero’s feast. This restores HP and fills your nutrition to just below Satiated (and increments the turn counter?)

Quest leaders verbalize their confusion at the player’s change of gender if the player has changed from their original gender.

Your quest leader can heal you if you come to them injured or sick.

The Norn and Valkyrie quest friendlies have different messages if you talk to them after having been changed into a man.

When you ascend, you receive an elaborate role-specific message with your quest leader congratulating you (if they are alive).

In variants or proposals where you can kill your quest leader to get the Bell of Opening, if you have permanently converted alignment already, killing your Quest leader does not give you a massive alignment penalty.

The Bell of Opening is carried by your quest leader, who gives it to you when you return to them with the quest artifact. This solves the problem of making a game unwinnable by permanently changing alignment, since you can also get it by killing the quest leader. Should the leader leave the level (by levelporting down, for example), they are considered derelict of duty and the player can start the quest.