Lair of the Evildoer was released for the Xbox Live Indie Games service this week, and it's a twin-stick shooter. Wait, don't stop reading! It's a twin-stick shooter with RPG elements modeled after Runic Games' Torchlight, and it works better than you'd think.

Lair of the Evildoer is a relatively short game consisting of 20 procedurally generated levels. Players earn experience by carving a bloody swath through each floor's waves of zombies. Each new experience level gives players five skill points to allocate among four attributes, and damage output can be upgraded by finding stronger weapons.

It's definitely Torchlight-inspired, in other words. The twin-stick gameplay ensures that Lair of the Evildoer is more than a simple clone, however, and the streamlined inventory system keeps the game moving at a brisk pace. I'm only a few floors in, and I've already gotten my dollar's worth.