Not sure how new categories are brought in. But can we add Ancient Dungeon as a category? It was a fairly popular romhack that plenty of people played. Can a seed number be locked in so its less rando? Or an anyseed?

For something like this, it'd be better to start a new game. I know we have Outlands on Z1CE, but its typical for a romhack game to have its own leaderboard and that's what should have been done for Outlans. Having a Z1: Ancient Dungeon leaderboard will also make it a lot simpler and tidier to have as many Z1AD categories as players feel are valuable.

Is there a discord for Z1 Ancient Dungeon?

I agree it would be cleaner if you had different categories etc. I dont know of a discord for it but doesn't mean it doesn't exist.

I think if you're interested in having a Z1 Ancient Dungeon leaderboard, you should start it. It's an easy process that the SRC Help pages will guide you through. https://www.speedrun.com/support/learn/requesting-a-game If you need additional help, let me know.

I read up on it last night, put in a support ticket, and got it approved this morning. I'm going to be looking into setting it up. Should be fun. May want to borrow several things that the Z1 and Z1CE leaderboards are doing.