For tourney-style esports games with payouts, check out leetcoin.com - they just launched.
For BETTING on those esport matches - we have that at
https://www.betmoose.com/bets - as you can see, eSports isn't very popular (though we've had them in the past). If we can find a market-maker creating esport odds, it would be very easy for us to integrate full-out live betting on your favourite games...