Game Engines The concept, history, and future of the Metaverse are all intimately tied to gaming, as we’ve seen, and this fact is perhaps most obvious when we look at the basic code of virtual worlds. This code is typically contained in a “game engine,” a loosely defined term that refers to the bundle of technologies and frameworks that help to build a game, render it, process its logic, and manage its memory. In a simplified sense, think of the game engine as the thing that establishes the virtual laws of the universe—the ruleset that defines all interaction and possibilities.