Games

Deals with	astrophysics // chemistry // computer science // geography // geology // physics // programming
Intended for	elementary school // middle school // high school // university
Available on	Web
Cost

Deals with	astrophysics // computer science // technology development
Intended for	high school // university
Available on	Windows // Mac
Cost	paid // free demo

Deals with	astrophysics // math // physics
Intended for	middle school // high school // university
Available on	Web // Windows // Mac
Cost	free demo

Deals with	astrophysics // chemistry // physics // science
Intended for	elementary school // middle school // high school
Available on	Web
Cost	paid