P42 Popular science games.
Free online educational games.

Planeta 42 website includes more than 800 games, puzzles and quizzes to explore interesting and useful topics, from various fields of study, which increase Knowledge Level by +1 each. On this site you can play either for fun, exploring the secrets of Planeta 42, or play for education, increasing your knowledge level. What you may find on this remote abstract world is fun online applications for education, exploration, examination and science exercises. Free online learning games that require no registration to play. Games for kids and students to help in classes. Fast, fun, games, tests, puzzles, quizzes, mosaics and boards, which iclude exciting and useful information studied in primary and secondary school. Arcade games, picture tests, term tests suitable for classroom tools. Interactive lessons and teacher's tools. Fun and exciting homeworks.