Moksha-patamu, the early form of Snakes (or Chutes) and Ladders.
The board was similar to the version we know today in that ladders connected virtuous deeds to rewards, while snakes, corollary to our chutes, connected vices to punishments.
you invented Snakes and Ladders,
Shiva Vishnu Ladder - See Bottom of below link
http://lordofsnake.blogspot.com/search/label/Ladder