- XSolving Word Problems in Math
Space Mission Problem Solving- XSpace Mission Problem Solving - Journey to Mars
- XSpace Mission Problem Solving - Journey to the Moon
- XSpelling
- XStorymaker
- XStrange Encounters - You Decide
- XStrange Encounters - You Decide - Bigfoot of the Mountains
- XStrange Encounters - You Decide - Snowman of the Himalayas
- XStrange Encounters - You Decide - The Bermuda Triangle
- XStrange Encounters - You Decide - The Loch Ness Monster
- XSuper Quiz Kid
