Tales of Maj'Eyal
Tales of Maj'Eyal(Tome in short) is a fully graphical roguelike that started out as a rewrite of PernAngband 5.x, but legal difficulties led to a version of PernAngband 5 to be re-released as ToME 1. Actual version is Tome 4. After 43 beta releases and 4 RC releases it finally went into 1.0.0(now its 1.0.4). Tome 4 is most notable for its easy to start attitude and merciless rape at higher levels of difficulty.
Story
The people of Maj'Eyal: Humans, Halflings, Elves and Dwarves. The known world has been at relative peace for over one hundred years, and people are prospering again. You are an adventurer, setting out to find lost treasure and glory. But what lurks in the shadows of the world? - In-game description
In fact, the world in a game is recovering after Spellblaze, magical equivalent of a nuke that tore apart whole continent, blasted off some land into space and made certain people very angry at mages.
Depending from the chosen race, You will start in one of few starting locations with little back-story why are you there. After clearing all starting locations You will venture into many wondrous places. Like frozen mountain/active volcano filled with dragons, underwater temples inhabited by Eldritch horrors or good old necromancer tower.