All of the Eager Zebra games are great for earning TCredits and MRP however my favourite is Knockout Trivia. There are several entry costs including games you can enter for free, some cost 1 TCredit and the Big Dog games costing 5 TCredits. Usually the Big Dog games have bigger TCredit prizes.
Playing Knockout Trivia is also a great source of learning and broadening ones mind. It is great looking at the flags of all the countries and see who you are playing against.
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