Troubles of Middle Earth, or ToME, is one of the more popular Angband variants. It is also currently one of the most "Tolkienized", as the world map is a sort of ASCII conversion of the real Middle Earth maps. This means you can walk around in Middle Earth and visit Lothlorien just as you imagined when you read The Lord of the Rings. This is one of the two main points that sets it apart from "vanilla" Angband and other variants. The other is the sheer amount of stuff in the game. For example, there are currently 22 races, 9 race modifiers or subraces, and 29 classes, far more possible combinations than vanilla Angband. It's a great laptop game, as it requires little computing power and doesn't need a mouse of any kind.