Game engine for text games such as Dwarf Fortress or Nethack?

[PurpleMetro]

/title

What was the game engine that the guys who made Dwarf Fortress or Nethack used to make the game?

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[Katamari007]

You mean roguelikes?

[PurpleMetro]

You mean roguelikes?

uh, sure.

[dotdot: reloaded]

DF is written in SDL and Nethack has been around so long and has tons of frontends. There is no engine that these games use per se, though NetHack's source code is very readable and I would definitely recommend it. There might be some sort of ascii engine for roguelikes but I have no clue what it is.