The objective is to capture 75% of the map territory, and the game is played at a fast pace. A brief campaign serves as an extended tutorial, but eleven maps are available for skirmish and online play. The minimal interface misses some traditional features like double-click selection. Fixed buildings can be captured and used to produce new units, while the Sentinel captures territory and subordinate units are used to attack and defend territory. The AI is decent at the game, but can sometimes be backed into a corner. While the pace may be too hectic for some, Interloper does have some interesting minimalist real-time strategy trappings.