Elder minotaurs can create earthquakes.

Dragons should still cast spells at you and use their roars after they have eaten you. They could also digest you with their own elemental damage type rather than ordinary digestion.

If you zap a cursed wand and it backfires, zapping you, the death is currently given as “zapped him/herself with a wand”. This should be changed to “killed by a wand backfire” to indicate it wasn’t deliberate.

For every demon lord you kill (not just bribe), the chance of the Magic 8-Ball giving a wish increases from its very low baseline, up to a reasonable amount where it won’t take too much spamming to get the wish after you kill them all.

When you identify a piece of worthless glass that belongs to a shopkeeper, they get angry and attack you because you have exposed their fraudulent business practice.

Make it easier to destroy non-high altars, perhaps by something as simple as digging them, but destroying an altar will cause its god to smite you hard. If you destroy a crossaligned altar, your god rewards you for it.