The prizes do not look encouraging to participate:
A total of 3 winners with the highest scores at the end of the contest period will be selected by SIA. Winners will be informed via email by 12 May 2017.
The Prize is KrisFlyer Frequent Flyer Miles which are equivalent to their game points collected, which can be used to redeem a free trip*. (1 game point = 1 KrisFlyer Frequent Flyer Mile)
*Free trip is based on round-trip Economy Class Saver award ticket on Singapore Airlines and SilkAir flights only. Taxes, surcharges and fees are applicable in addition to the required redemption mileage and must be separately paid by the passenger. The KrisFlyer miles will only be valid for 1 year from the date on which it is credited into the KrisFlyer member account of the winner of the KrisFlyer miles, and no extensions will be permitted.
You can only use the points to redeem Econ Saver Ticket and taxes are payable.