Not trying to be pedantic:

https://en.wikipedia.org/wiki/Roguelike

It's games that are like Rogue.

Way too many headlines (and accompanying stores!) on HN that don't bother to explain themselves.

There's enough distinct sets of knowledge and experience that there will always it problems communicating succinctly (a title) and effectively to everyone. In this case, if you visit the link, one of the header menu items is "Roguelikes?" which explains it.