ToME: the Tales of Maj'Eyal

I think it would fun to have an arena mode where a larger random terrain is generated (with walls, water, anything, etc) in which you fight a hard rare. Maybe step up the level mismatch by a certain amount and generate a new totally random terrain after each battle. Perhaps indeed the only equipment that would ever drop would be orange.

A modified Arena gauntlet of some sort would be quite interesting.

A long time ago I had attempted something along those lines, but... but well, I gave up due to being quite new at that kind of thing.

Fairly sure I could give it a shot now, though, with positive results.

I remember StarKeep's early attempt.

It was a very good start.