What are some alternatives?
Digit Disorder - Digit Disorder is an easy to play but hard to master video game that is specially made for math lovers.
2048 - Puzzle game written by 19 - year old Italian designer Gabriele Chirulli based on 1024.
Fives - Fives is a Quite Challenging Puzzle video game by Higher Bar LLC.
2048 Game - Play 2048 Game Online. Join the numbers and get to the 2048 tile!
White - Real-time interactive whiteboard
2048 by Uberspot - Port of the 2048 game by Gabriele Cirulli. It's playable without network connection.