single-player Games

Molly of Denali: Learn about N

Play and Learn Engineering: Ed

Ready Jet Go! Space Scouts

Paint by Numbers Nonogram

FCross Link-A-Pix puzzles

CFCross Link-a-Pix puzzles

Sudoku - Logic Puzzles Sudoku

Monsters Hockey: fun mini game

Jigsaw puzzles for everyone

Angband (plus variants)