Prior to 3.1.x the dat subdirectory didn't exist yet but data.base was present somewhere, possibly in the src subdirectory instead. I don't know whether it goes as far back as hack 1.x or even nethack 2.x. The source code for a bunch of old versions is present at https://nethackwiki.com/ but I'm not sure whether the data files are all there too. The source code for the most recent released version (3.6.7) is... Source: about 1 year ago

I am not sure what extra benefits the Steam version has, but the game is available for free either as download on nethack.org, or to play online at something like alt.org/nethack or hardfought.org. Source: about 1 year ago

You don't even need two people to play D&D, Nethack is great! Source: about 1 year ago

I've always been fond of the last quote on nethack.org. Source: over 1 year ago

It was discussed here last fall, when the home page for nethack.org was updated to mention it. The blurb includes a few other tiny screen shots and says the exhibit is scheduled to be open until mid-July. Source: over 1 year ago

The one I knew was called Powder Game[1]. I used to play it a lot in the elementary school computer room. [1] https://dan-ball.jp/en/javagame/dust/. - Source: Hacker News / 11 months ago

Powdertoy and this https://dan-ball.jp/en/javagame/dust/ are nostalgic as fuck for me. I remember wasting time in class playing these games. Source: about 1 year ago

Reminds me of Powder Game but 3d -https://dan-ball.jp/en/javagame/dust/. Source: about 1 year ago

This reminds me of the powder game. Source: about 1 year ago

This game takes me back. I used to play it here back in the day: https://dan-ball.jp/en/javagame/dust/. Source: over 1 year ago