The mysterious mastery bar is a crucial concept relatively unique to Grim Dawn and Titan Quest. We will start by defining some basics about the game so you don’t misunderstand important concepts and so that you have some orientation for what skills actually do when we get into the details of each class later.

I highly recommend reading the official game guide on Crate’s website and the incredibly excellent Grim Tools website for more information and the chance to really dig into the details of the game. I will not go into item-granted skills or in depth into the constellations on the devotion tree, because there are already good guides for that. To aid in this monumental decision, I’ve listed below every class and skill in the game, its basic characteristics, and a brief overview of why you might want to use it. Worry not, we’ve all been there at the skills screen, wondering what the heck to do with those first three skill points or maybe even what the heck to pick as our first class. There are all these skills and nodes and lines connecting some of them and a big ol’ mess of stars that are grouped by color, and who even knows what a mastery bar is? Starting your first character in Grim Dawn can be daunting.

Defense and How to Not Die Like a Chump.

Offense and How to Kill Everything and / or Everyone.

Grim dawn all classes