“Tetris is not a puzzle to be studied, but a reality to experience. You must play and flow with it.”
— Galactoid
Thank you for buying this Tetris guidebook’s physical version for super-casual players! Its digital version is entirely free on my howtotetris.com website.
About the Author
Hello! I am Aquila Goh, often known as Galactoid, the creator of the Galactoid Tetris WordPress and HowtoTetris guides (6 Tetris books in total).
I am a Tetris 99 main and an exceptionally efficient Tetris player, having completed 510,000 T-spins. I have a T-spin-per-line-clear ratio of 0.2-0.25 (top-tier). Here is a screenshot of my account as proof of my qualifications in teaching Tetris. I go by Ei’lara on Twitch and Tetris 99:

Magnified, compressed, and upscaled for clarity:

I have played Tetris since 2020, and it has become my obsession. I commonly terrorize Tetris 99 lobbies by doing 100 T-spins in some matches.
I have spent 5 years experimenting and testing Tetris techniques to find the most viable and streamlined methods. My Galactoid Tetris WordPress website has nearly 100 guides in every Tetris skill area.
These are some of my Tetris feats from my mid-game when I stream on my Twitch channel below. I create them at a rate of between 1.7 and 2.2 pieces per second. Note the cleanliness and minimal T-piece wastage in the stack. These are Tetris 99 screenshots:


The above screenshots demonstrate my Tetris finesse, mid-game mastery, and experience to guide others.
With nearly 3,000 hours of playing and researching Tetris, I have distilled my experience into this guide to help you master Tetris.
The Goal of This Guidebook
I have written this book as an entry-level guide for the super-casual Tetris demographic.
It is primarily tailored for a modern Tetris audience. However, many shared fundamentals are still applicable to Classic NES Tetris.
Although I have written many Tetris books, they are more tailored to serious Tetris players, ranging from beginner to expert.
However, these books can be intimidating for the ultra-casual demographic.
Therefore, this current book provides a super-easy, idiot-proof, and short introduction to Tetris.
I provide you with the core essentials, distilled from my thousands of pages of guides, to help you enter the Tetris battleground in just a few days of study!
Please enjoy this easy-to-learn Tetris course for readers who simply want a quick entry into the game, without years of sustained effort!
Enjoy the Book!
While I strive for perfection, a few errors may remain, as the book is self-published with limited manpower.
This book series’ official website is https://howtotetris.com/
My Tetris research blog is: https://galactoidtetris.wordpress.com/
My Tetris tutorial YouTube channel is:
www.youtube.com/@GalactoidTetris
My HowtoTetris website contains an errata page that catalogs all errors found in the book series, which I will update frequently.