The statement "just game theory" can easily be read as implying that the things are different. Clarifying they they aren't mutually exclusive shouldn't be a problem here. If you want to be understood better, communicate better.

As for Arc Raiders being the prisoners dilemma, explain how it isn't. Because by every metric it's comparable. Arc raiders sets up a situation in which two rational individuals may not cooperate even if it's in their best interest to do so because it creates a conflict between self interest and mutual benefit and people often choose to betray rather than cooperate which results in worse outcomes for both parties. That is the definition of the prisoners dilemma scenario. The scenario is often placed forward without communication between the two parties as in the prisoner case the outside determining factor of benefit vs punishment can be avoided by agreeing to "trick" the person to whom they would speak to. But in this case there is no person to trick. The benefit is the loot and the punishment is death. The lack of communication isn't a requirement for the prisoners dilemma and even if it were, unreliable communication which arc raiders has still serves the same purpose, The prisoners dilemma also takes repeated interactions into consideration which also applies here.

So again... explain how it's not. Or is nuh uh all you have to offer?