This 1st-person, point and click adventure game looks and feels very much like Myst and Riven.
Richard, an avid chemistry buff, unwittingly finds the portal to the strange city of Chemicus and steps in. Strangers in white hoods capture him, lock him up inside the city, and accuse him of trespassing and stealing "transmission molecules" that protect their valuable energy source. You play Richard's friend who goes to the city to rescue him.
The 3D world has many varied locations to explore, many inventory objects to find and use, and problems and puzzles to solve. The puzzles are all based on fundamental Chemistry, help for which can be found in documents found while exploring as well as the in-game science database.
The game's educational value has been given high acclaim by science teachers, students and adventure gamers alike.