World Trivia 2018 Home World Trivia 2018 0.0 / 5 ( 0 votes ) Your Rating? Discover World Trivia 2018 – Play Free Now on GamePrimary! Fill in the correct letters to guess the names of depicted animals. The letters are being filled from left to right. You can remove filled letters. Each set consist of five questions. Complete it in the given time and gain stars to unlock the next set. Categories in which World Trivia 2018 is included: Puzzle Love 1 Player Thinking