Bad news browser-based Gnarshmallow players, the Flash technology Gnarshmallow for web browsers depends on is no longer supported by Adobe , and many of you will no longer be able to play here as of January 12, 2021. You're stuck until I move the game to another technology, and I have no idea when I'm doing that.
If you still have an outdated version of Flash player (older than version 32.0.0.387) and a compatible web browser you may still be able to play below, but remember it is a security risk to your computer. I haven't tested this out.
Gnarshmallow for iOS and Android are still available, although they definitely lack some features the Flash version has.