The Drunken Lizard Pub

The key I found in the pit boss' office doesn't open the wood and steel door there behind which are two lucious looking chessts. What is the way in? I can't leave until I get in!

Nope that key is for

[+] SPOILER

the emergency exit back up on Level 1 at the south edge of the map.

there is no way in to that room as standard, though I think MyGameCompany's mod might include a way in.

Yes, my mod does provide a way to open that door.

Thank you both for the info. I guess I will have to leave afterall.