Here's some of the stuff I discovered recently that will most certainly be useful in any%. I'll update this post as I find more. Thanks to user, alpaca and fox for their contributions.
See the video descriptions for how to perform the glitches. All of these can be performed in software rendering mode. Haven't extensively tested hardware rendering mode.
Zod colony clear glitch. Despawns all devils except for xenofex. Requires 3 fire aura scrolls or similar.
Quest NPC hire glitch. Requires a fire aura scroll or similar, or cast a spell like remove fear and talk to a hired follower at the exact same time, then choose target and die with the dialogue up, no scroll needed.
Item dupe glitch. Requires a fire aura scroll or similar. Might work at other chests but avlee was convenient in the run.
In a recent discussion with someone, I was debating allowing the German version on the leaderboards. Their argument against it being that since it modifies things aside from the script, most notably the wine cellar and Lincoln to make them easier, it shouldn't be allowed.
My stance on this was that any official release should be allowed. The obvious compromise would have been to split the leaderboard but I decided against it considering how small the community is. My reasoning being that no one would bother with the original English version anyway when it's more risky and less consistent if all you get in return is the prestige. I simply assumed there wouldn't be any such purists.
I neglected to discuss this publicly before and just allowed German runs alongside English, so I'd like to ask everyone, should the leaderboards be split? Why? Why not?