What are some alternatives?
Threes - Threes is an Amazing Challenging Puzzle video game developed and published by Sirvo LLC.
2048 by Uberspot - Port of the 2048 game by Gabriele Cirulli. It's playable without network connection.
Play2048.co - Puzzle game written by 19 - year old Italian designer Gabriele Chirulli based on 1024.
XOLT - Smart and addictive number game puzzle in a beautiful Stonehenge theme!
2048 Alphabet - Version of the 2048 game - 2048 Alphabet wiht letters,
Digit Disorder - Digit Disorder is an easy to play but hard to master video game that is specially made for math lovers.