Dungeon Bash is not available on Google Play Store (there is no 64 bit version) but you can grab the APK here anyway and side load it.

here is the APK: https://drive.google.com/file/d/10dGTUzoG-5jmRZNHtTW-MqS4J8y7oBrL/view?usp=sharing

For iOS users, the ipa is here, and if you can work out how to side load it to your device, great! Good luck!

Here is the IPA: https://drive.google.com/file/d/10pMzGz9oFUlA_YtVeW5joPMv-Zog8h-A/view?usp=sharing

A look at the game before development stopped.