What are some alternatives?
2048 Alphabet - Version of the 2048 game - 2048 Alphabet wiht letters,
Witeboard - A real-time whiteboard for your team. No signups required.
Digit Disorder - Digit Disorder is an easy to play but hard to master video game that is specially made for math lovers.
Jamboard - It's like a whiteboard, but waaay better. From Google.
Fives - Fives is a Quite Challenging Puzzle video game by Higher Bar LLC.
Deekit - An unlimited canvas for you and your team to draw, write, edit and work with other content.