Can someone explain roguelike game?

You'll see roguelite a lot too, and that's what most people actually mean now. Strict roguelike means nothing carries over when you die. A roguelite lets you keep some unlocks or upgrades between runs, so you slowly get stronger even when you lose. Hades and Dead Cells are roguelites.

a game where dying sends you back to the start and the levels are randomly generated, so every run is different. name comes from an old 1980 game called rogue. strictly speaking most of what people call roguelikes now are roguelites - you lose the run but keep some upgrades between runs. hades and dead cells are the usual examples. if you want to know whether you'd like the genre, try one of those first.