No, the win token is used to "pay for transactions" and for staking. Since everything is settled in trx, and staking trx through tronlink will essentially give you free transactions, I don't really understand how the win token does that.
I don't know if devs/bookies settle transactions in trx or win.
You can, however, send TRX to you tronlink wallet and it will connect to both polonidex (for trading any of the alts you might get through playing games on wink) and wink.org.
It's all very smooth, and payouts are instantaneous (in TRX). I have an ok sized bag of win, and I'm ready for a wild ride. In a month we did 1000%+, retraced 50%, fell another 30%, came up 30%.
One thing that has been very clear to me is that people really don't know a lot about the coin. The information isn't very easy to find. Though I found a lot of stuff searching for "Lucia Wong" on www.baidu.com and then translating to English. They have much much more substantive information for their domestic market related to future distribution of payouts, their derivative coins, and various incentives for stakeholders.