CellCraft is a free interactive game were students learn about the cell as they play the game. It is free to download (as long as you give credit) in three different formats: SWF for embedding on webpages, EXE to play on a Windows computer, and APP to play on a MAC.
The creators are also developing a downloadable teacher's packet with more information about the game and lab for students to use as they play the game
Via Dr. Susan Bainbridge