May 14, 2018 State of Decay 2’s levelling system requires you to simply do things related to that skill. So, for example, to level up your Cardio skill, you’ll want to use LB to run around a lot and climb. RELEASE INFO State of Decay 2: Juggernaut Edition Update 19 (c) Xbox Game Studios Release Date: 07/2020 Protection: Steam+XboxLive Discs: 1 Genre: Action For list of changes read included patc..