Hmm I'm planning to develop few games such as backgammon let's say player1 put 0.01mbtc and player2 do the same and they play against each other.. You think it's necessary to have gambling license ?
Yes absolutely, A license also adds integrity to a gambling site and a big plus on the trust you will give to the gamblers. Most of the online casino nowadays has their gambling license and without having, it might have a chance that gamblers might not have interest in playing on your casino.
Btw, P2P games are the ones I'm very interested in. I don't have any idea how backgammon works but I can learn it when your future casino is launched. Of course I will play on a promotion period.