This isn't the first time RNG manipulation in NetHack happened. In 2009, Adeon released a set of RNG manipulation tools for NetHack 3.4.3 (nethack_rng_tools-0.2

This isn't the first time RNG manipulation in NetHack happened. In 2009, Adeon released a set of RNG manipulation tools for NetHack 3.4.3 (nethack_rng_tools-0.2.3.tar.bz2 -- I can't find that filename anymore, so I put up a mirror[1]). This allowed determining the RNG seed from a running game. However, he also made a patch to use a cryptographically secure PRNG[2]. I'm not sure if nethack.alt.org (NAO) ran that patch. If they did, I'm not sure why they kept random() for 3.6.1 that was apparently run by SWAGGINZZZ. [1] Since it had license headers, this is probably okay. https://xorhash.bitbucket.io/nh/nethack_rng_tools-0.2.3.tar.bz2 https://xorhash.bitbucket.io/nh/nethack_rng_tools-0.2.3.tar.... [2] https://bilious.alt.org/?349 https://bilious.alt.org/?349