This bug has been around for a while, but I figured now's the best time to report it since the ADOM team has been so active =)

In Tiles mode (ONLY), if you begin a gambling session and then hold down the enter button to continue for a long time, the game will *eventually* crash. It takes a while (probably about ~1,000,000 gold worth, seems to be different every time), but it will always crash.

Attached is a save standing on a slot machine, simply hit 'h' and then hold down enter for a while to see the crash.