Below are depending on what you actually mean, with suggested paper structures and keywords for each. 1. If you mean the game Territorial.io Suggested paper title: "The Mechanics of Conquest: Game Design and Player Behavior in Territorial.io"
Computer science / game development.
Student game studies journal, Medium, or a class paper for game design. 2. If you meant Territoriality + .io (conceptual paper) Suggested paper title: "From Animal Territoriality to Digital Domination: The .io Game Genre as a Model of Spatial Competition"
Interdisciplinary (geography, sociology, game studies).