I find this to be a very interesting question, because I’ve been dissatisfied with the common attempts at definition of rogue-lites.
A rogue-like is quite well defined, mainly: top-down dungeon crawler, procedurally generated levels, procedural weapons and loot,
permadeath without hold over for restarts, and a few I can't quite remember now.
Now, the puzzling thing is that people think there’s some commonality between rogue-like and rogue-lite. None of the above
definitions need apply to a rogue-lite, except, normally, the procedural levels. A rogue-lite can be an FPS, a platformer, any genre
with procedurally generated maps, really. I’ve even come across one or two games that called themselves rogue-lite (can’t remember
the names now), although the levels were hand-crafted but the loot was procedurally handled.
So, this means that rogue-likes and rogue-lites need, if you apply the definitions, to have nothing in common whatsoever. It might
mean that any game that has one or two characteristics of a rogue-like may call itself rogue-lite (sort of mix-and-match), but this
is not anywhere near a satisfying definition.
But still, strangely enough, I mostly find myself being able to tell which game is a rogue-lite, and which ones aren't.