GameUp is a free resource that showcases top online educational game titles and supporting material for the effective use of games in the classroom.

Chronopticon is a time travel game in which players gain an increasingly complex picture of the earth-moon-sun system and the celestial sphere, as well as how their motions relate to the passage of time. Learn how the earth’s rotation causes passage of hours and creates the day/night cycle. Discover basic configurations, motions, and positioning of the zodiac constellations and how one’s reference point in the northern or southern hemisphere affects the motion, appearance, and positioning of celestial bodies.

Food Fight is a two-player game where you can learn about foodwebs and habitats. Increase the population of your prey and watch your animal survive its predators!

Play Chronopticon and Food Fight.