>> IBM announces the 3161 and 3163 ASCII Display Stations, serial-based terminals in the IBM 3101 lineage that were capable of emulating various third-party terminals. They sported the first terminal-specific IBM Enhanced Keyboards, which typically have an extra key over ANSI and ISO PC-style Enhanced Keyboards, and ASCII-style ones like 316X's often uniquely have line drawing symbols on their numeric keypads.

And of course you'll be playing rogue.

https://sharktastica.co.uk/resources/images/terminals/Wyatt8...

(Nethack came out two years later)