It's 2026. Can LLMs Play Nethack Yet?

Ah, NetHack. Despite playing for years off and on, I never quite made that first ascension, only managing to find an increasing number of unique and creative ways to die. Picking it back up recently (with similar results), I wondered how effectively modern LLMs could navigate the procedurally generated dungeons of NetHack and whether maybe, just maybe, the Amulet of Yendor was within reach for them. What follows is my journey towards building a new agent harness for NetHack; if you prefer to skip ahead to the project itself, take a look at the GitHub repo. ...

January 30, 2026 · 16 min · 3347 words · Kenny