New builds of my games on Google Play should be available shortly.
They contain whatever changes the PC versions have accumulated over the last couple of years.
More importantly, the new builds target a more recent version of Android, so they should work on newer devices.
I've been meaning to update them for a while, but I'd been unable to find the signing key for Google Play, and I didn't want to start over.
Fortunately I found the key by coincidence while going through an old backup the other day. Important reminder to backup everything always.