Definition of "gameness" [game•ness]

• The quality of being game; bravery, courage or pluck (noun)

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• "Bred from strains of Hatch, Claret, Black, Round Head and White Hackel for height, strength, speed and "gameness," or the ability to stay and fight instead of surrendering, a prize fighting cock may sell for as much as five thousand dollars."
• "Some of them even played the first level and still couldn't see the 'gameness' of it."
• "Developers of virtual worlds that use microtransactions already pay tax on the money they accrue that way, without they would argue necessarily undermining the integrity of the "gameness" of their world."