I find some pure html js apps in github and I put them here.

• 2048
• sudoku
• tetris
• tetris 2
• MobileMeteor
• allthatcounts
• snake
• rubik
• Rubik3
• AnimCubeJS
• pegsolitaire
• pegSolitaire2
• solitaire
• Asteroids
• taptaptap
• flappybird
• huarongdao（klotski）
• huarongdao2（klotski）
• huarongdao3（klotski）
• number klotski
• 羊了个羊
• Editor
• TouchDrawer
• reader
• pptx2html
• practicalprojects
• koreankeyboard
• japanesekeyboard
• koreanromanize
• audio transcript player
• Javascript AST Visualizer