What the official listing confirms
Steam describes The Thing That Happened as an open-world, third-person action-adventure survival game. It names weapons, attachments, close-combat skill trees, and crafting as part of its play systems.
Use the listing as the baseline
This guide uses the store description as its factual boundary. It does not turn genre tags into unsupported claims about missions, enemy types, or item recipes.
Source
Official Steam listing (retrieved July 23, 2026).
Q: Is this overview official?
The facts are drawn from the official Steam listing; this wiki is independent.