Go (game)
Go is an abstract strategy board game for two players, in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. 
A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia.
Tables (board game)
The ancient Egyptians played a game called Senet, which belonged to the same family of "race games" as modern tables games, with moves controlled by the roll of dice as early as 3500 BC. The Royal Game of Ur, played in ancient Mesopotamia, is another member of the family. Recent excavations at the "Burnt City" in Iran showed that a similar game existed there around 3000 BC. The artifacts include two dice and 60 pieces. The set is believed to be 100 to 200 years older than the sets found in Ur. Though they are all race games they cannot be direct ancestors of backgammon.