The anonymous millennia
Senet, the Royal Game of Ur, Go, chess, mancala and playing cards were all designed by someone, and refined by everyone: games spread and mutated like folklore, with no notion of a designer to credit. Where names attach at all, they attach to codifiers and masters rather than inventors. Dice games drew religious and legal suspicion in many cultures, which kept the making of games a trade practiced quietly rather than a title worn proudly.