Crawl and war-game planets are seeded biological systems whose overgrowth produces elements harvested as interstellar fuel.
Odette tells Carl that every planet used for a crawl, Battle Royale, Land War, or similar game ultimately serves a resource-collection purpose. Seeded biological systems produce an overgrowth whose byproduct includes valuable elements.
Those elements are harvested as fuel. The entertainment industry was added later, partly because collection and planetary operation are extraordinarily expensive.
Odette claims the resulting infrastructure supports so much civilization that abruptly shutting it down could kill half the known universe. Her proposed reform therefore seeks to end the crawl's suffering while preserving a humane method of future collection.
A living seeded planet feeding luminous elemental streams into a vast interstellar power network.
The collection system is the hidden material purpose beneath the dungeon's entertainment spectacle.