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 way you named your tank in diep.io kinda looks like erect!on. Source: 7 months ago

(Has anyone else said your OC reminds them of diep.io?). Source: 7 months ago

Ok wtf the AFK destroyer troll in diep.io has evolved. Source: 7 months ago

Or even CSS media queries. Although I understand that diep.io is built on C++ (from another post), it's still compiled to Javascript on the client side. I don't use C++ that much, but there's definitely a method to get around this, in addition to that most people who play diep.io play it in the app, not the web. Source: 7 months ago

No updates , downfall started 6 years ago , barely any diep.io content creators still there , it explains it self , diep takes more skill than arras.io , meanwhile arras.io got a ton more classes and more fun , and bullet logic is different there , don't forgot arras.io gamemodes too . Source: 8 months ago