Dead Money a challenging survival adventure with a touch of horror, that approaches things differently. Unlike the main game, where you sit safely on your pile of wealth, in Dead Money you'll be scrounging for every shell of ammuntion, every kind of food to keep you alive in a hostile environment full of enemies, traps and other threats.
This can make the DLC quite frustrating to play, but the intriguing story motivates you to pull through.

LIMBO is not a masterpiece. LIMBO isn't even very good in particular. It's a tedious trial & error physics platformer that starts out great with a dense atmosphere and creepy makeup. But as soon as the first setpiece is gone the game kinda forgets about the whole horror-theme and just becomes obnoxious trial & error that resolves in a sudden and disappointing ending.

For 5€ a game with a surprising amount of content and diversity.
The high diffculty and the trial and error mentality of the game can be frustrating at the start, but once you settled into the Binding of Isaac it's well worth it's price, especially since it brings that nostalgic feeling of a real challenge back.