I have never finished an ADOM game aligned chaotic, never mind C from start to end.
Both ultras I have finished are ULE, one with a Paladin (the epitome of a 'good' hero).
My most common regular gate closures are Neutral, mostly because of the Dwarven Mystic, and it just tumbles over.
Some additional fun, Lawful facts:
- I have never bypassed the Eternal Guardian in a violent manner, though I'm aware of how to both do it with a fast teleport as well as abuse him for experience.
- I have never opened the Dwarven Portal in any manner other than the portal quest.
- I have never in my near 20 years playing ADOM, triggered the powers of a Chaos Orb. The most common and useful one (Water Orb), I replace with piety for emergencies.
It isn't just you. Still, moving outside your comfort zone? Could be fun?
I've been tempted to try my only OCG ever with a Chaos Knight.
Would definitely be a lot of firsts for me.