Tetris Design Guideline

Blue Planet Software, Inc. 2009. — 96 p.Basic Game Flowchart.
Tetrimino Generation.
Controls.
Tetrimino Manipulation.
Levels & Goals.
Fall & Drop Speeds.
Scoring.
T-Spins.
Game Over Conditions.
Game Over Events.
Main Tetris Variants.
Visual/Sound Effects & Music.
Appendix A The Tetris Engine.
Appendix B Multiplayer.
Tetris Glossary.