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Akinator - Akinator is an entertainment app that acts like a digital genie that can read your mind. The game will ask you a few questions about the character you have chosen, and it will attempt to guess the character from your provided answers.
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Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.
Kinguin - Marketplace to buy/sell game keys for a myriad of platforms including: Battle.
A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.