The slime pit is wonderful.
I've cleared about half the level without getting more achievements past 500 walls. Can we have more? I'm probably going to be fighting level 200 slimes soon with Vain Pursuit, my godlike vanilla Adventurer build, and I'd like to hold a record

Going for clearing the entire level of course. Only died once, which is when I finally started engaging defensive abilities (shields, etc.) at slime level 112. Sorry everyone, but he's frozen online at the point where he fought Atamathon, due to a bug that is recorded and had to be addressed with "Cheat Mode" at Darkgod's instruction (or he'd be stuck on the Eidelon Plane forever).
Also, my other character to attempt the slime pit has Stone Alchemy and gets 500-700 AU per visit. Probably not intended. Not that it matters at all, as you get more/better rewards from the slimes than you do from the merchant (and the risk merits it by far).
Last, but not least, there needs to be an intentional unlock feature for accessing this arena. If I do build a character to intentionally visit the pit, it currently must be Thalore. It should at least be granted automatically on winning the game. I got very lucky with Vain Pursuit.
Thanks again for the epic mini-gamemode that is the slime level. Regards,
LP