This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The fictional universe associated with a game.

"Some people mean something rather like what makes Lord of the Rings appealing for many, the sense that a gameworld is a "total" environment that can be explored comprehensively and has a sense of stable, consistent fictional reality to it."

gatefold