With this Grim Dawn calculator, you can choose from several different classes, known as Masteries. Masteries are ideally representing various archetypes from the world of Grim Dawn. You can combine them or mix-and-match to create your own customized play style. 

At level 2, you can select your first Mastery, with other developments lying in the higher levels. 

At level 10, you will now have the option of selecting a second Mastery to complement your initial choice, creating a Dual-Class character. 

It also works on mobile via Chrome on Android but it’s not optimal. You won’t be able to enjoy that much. Perhaps an app for mobile use will be released in the future.

The tool allows you to customize the built-up of your character, including selecting equipment, masteries, skills and devotion. At the same time, you’ll be able to see all character statistics calculated based on your choices. 

Basically, you can do virtually anything and everything related to character build in the game itself. So, it provides unlimited unique theory crafting possibilities. 

You can always check out the current game version at the top right hand side corner as well as in the “build version”. This is the version of the game for which the build was created. All builds are made backward compatible, so old builds will never be broken.