Archetypes

Invader

Warden - DLC

Invoker - DLC

Engineer

Archon 

Gun Slinger 



This is what you need for a second archetype

You must purchase a second archetype item in ward 13 or come across one during game play (in this case, you bring the item to Wallace and, among other things, need a simulacrum to activate this archetype). 

So possessing a second arcetype is not enough. This item must first be prepared for use, and that also costs materials.

When the item is ready for use, you can recognize it by a flashing exclamation mark on the archetype tab of your menu. Later in the game you will encounter or purchase multiple archetypes, but you can only actively use two at a time, and only the active ones are leveled.

So for a second archetype you need: