The dev team really DOES think of everything...

Today I got something special. One of the most well known of all roguelikes: Nethack! Originally released way back in 1987, and its roots can be traced back to the game “Rogue” which was released in 1980, Nethack is likely older than you, and its still being worked on today.

It will still be going after you die

The goal of Nethack is to obtain the Amulet of Yendor from the beyond the Mazes of Menace, and then get out alive. If the name of the dungeon doesn’t tell you this game means business than how about the fact that there are over fifty levels to that hell hole? Nethack doesn’t screw around.

Nethack knows who you are

At the start of every new game you choose your race and class with a number of selections to pick from. Classes have the typical ones you would probably expect, such as wizard, knight, and priest, who are basically what you imagine they are but Nethack also provides stranger choices, such as archeologist who start off with scientific tools, cavemen who start with high strength but ancient weaponry, or tourists who start off with a lot of money and a camera. Races who can choose from are the basic human, and dwarves, elves, gnomes and orcs. You also choose an alignment at the start, Lawful, Neutral, and Chaotic which has an effect on monsters and how hostile they are to you.

Nethack knows where you live

There is a lot to Nethack, from the randomized levels (with a few special exceptions), the cursed and blessed items, pets and Gods, you wont even see a fraction of what the game has in one go, odds are you wont see all that there is to Nethack period. What really makes Nethack is the high level of complexity and interaction in the game world. Your character can go blind, shape shift, lose limbs, then replace those lost limbs, wield dead monsters as weapons, make wishes, and starve if you don’t pay attention, and that’s really just the start.

Nethack will kill you in your sleep

Nethack uses ASCII graphics, though the option of tilesets is available if you're not into that.Whats even crazier is that Nethack can be configured so blind people can play it. I want you to think about that for a second.
...
Ok, now if any of that sounds appealing to you, you can snag Nethack here for whatever OS you use
and heres a guide for the game in general because damn this is complicated