This page lists the various available online versions of Crumble. I encourage anyone who wants to, to make their own online version and let people use it for free. If any money is going to be involved, please contact me to discuss it first.
Crumble isn’t for sale in stores. You make your own homemade set of pieces very easily though.
Questions and discussions can be found on the google group.
https://crumble-online.com/ was written in 2021 by Adam Sandstedt. It supports remote play between distant players, by accepting "challenges" from a pool of available games. Although the site's features are not yet fully fleshed out, it's already possible to find opponents and play full games online.
http://flooey.org/crumble/ was written in 2008 by Adam Vartanian, one of the original Crumble playtesters. When we held the very first Crumble tournament in New York, Adam won first place. To play Crumble on flooey, input the game notation into the text field. Each move should be inputted below the previous one, so that in the end, every move of the game will be shown in the text field. For example, cut-and-paste the following set of moves in their entirety, into the text field on flooey, and hit "Submit":
2,1VW
2,2VWSW
1,2HN
0,2HNEE
3,2HNW
3,4VW
1,1V2-2W-WSS
1,3VWNEN
0,4H2-1N-NEES
2,6HS
1,4V2-2W-WNE
1,5HSEN
2,8VW
You can also download the open source crumble app by Adam Sandstedt, and even participate in development if you like coding in Java.