When you kill an auton, the auton that upgrades itself elsewhere on the map becomes hostile to you if it wasn’t already.

Role based on the idea of “trophy hunting”, which gains more experience than normal on killing an enemy species for the first time, and less afterwards.

New artifact “Darkenstone”, which acts like the Arkenstone except that it’s a black opal, and carrying it provides radius 2 darkness. If drow are in the game, this is often given to them as a gift.

Inhaling vapors from a potion of gain level produces a message like “You smell hard work” or “You smell elbow grease” (perhaps if hallucinating), granting you 10% of the experience points needed to advance to the next level. Monsters may be similarly affected.

Note that the 10% is calculated just based on the level thresholds and your own experience points don’t matter (only your current level). If you are level 5, with level 5 reached at 120 points and level 6 reached at 200 points, you will always get 10% of (200-120) = 8 points.

The Dark Soul, an artifact that, if it is in your possession when you die, saves your level as a bones file and respawns you in a new copy of the dungeon with the same seed and no gear. If you reach the level you died on, you are guaranteed to load the bones file.

A “druid staff” artifact, which can be invoked to create a patch of grass similar in size to a stinking cloud, radius 4-5. Enemies within the grass radius become rooted to the ground, making them unable to move (but still able to fight, shoot, etc) for some time. While wielding it, you can chat with trees, which causes them to give you some food, mana, or rarely a pet (possibly an ent).

Diluting a potion of amnesia in a water source turns the water into Lethe water. It prints “Dark clouds roil beneath the water’s surface”, or “Somebody’s poisoned the water hole!” if hallucinating.