“The game was popular in ancient India by the name Moksha Patam. It was also associated with traditional Hindu philosophy contrasting karma and kama, or destiny and desire. It emphasized destiny, as opposed to games such as pachisi, which focused on life as a mixture of skill (free will) and luck.” … “ The morality lesson of the game was that a person can attain salvation (Moksha) through doing good, whereas by doing evil one will be reborn as lower forms of life. The number of ladders was less than the number of snakes as a reminder that a path of good is much more difficult to tread than a path of sins. Presumably, reaching the last square (number 100) represented the attainment of Moksha (spiritual liberation).”
Any flow state you can get into with games is not very interesting compared to fiddling with your own mind.