Rouge is make-up or the colour red in French. One of the original, if not the the very first dungeon crawlers was called Rogue. Any similar games are known as Rogue-likes. Nethack is a rogue-like and so is Powder.
Random character generation would ruin the game for me. None of the decent rogue-likes force you to play as a randomly generated character, but some do allow you to randomise the character by choice. I'm surprised they couldn't code custom character generation into the game. Are you sure it is a bug? I'm thinking it is just laziness or a deliberate game design choice.
