In a strategy game, you have multiple players whom each control their armies. These players can be human or ai. The problem I have is with the signification of the word player. When we talk about characters that are AI in games, we say NPC for Non Player Character. This implies that a player cannot be AI. In this context, we have characters that are either player or AI.
In a strategy game, the player and ai are not characters as per se, but invisible beings that oversees to their troops. What is a word for that overseeing entity that can be either player or ai?