Ghost (Word Game)

Players sit in a circle, and the first player says any letter to begin building a word.

Each following player adds one letter to the growing string, keeping a real word in mind that could result.

A player must not complete a valid word with their letter, or they lose that round.

Any player may challenge the previous player to name the word they had in mind if they suspect there isn't one.

If the challenged player cannot name a valid word, they lose the round; if they can, the challenger loses instead.

A player who loses enough rounds accumulates letters spelling "GHOST", and is eliminated once the full word is spelled.