Preferences › Games lists the programs using the most memory first, leaves out your system’s own, and takes a program’s file name you type. On Linux, the next AppImage keeps Chromium’s sandbox on: on a system that refuses it, the AppImage explains how to install the .deb instead of opening without it, and your messages, settings and sign-in are kept. Kemble Desktop 0.2.1 on Linux shows a one-time notice about this before the update, with a link to /download. Reset Kemble now also turns game sharing off and forgets your games.
Kemble Desktop: a Games page, and an AppImage that keeps the sandbox on
The next Kemble Desktop update adds Preferences › Games, and on Linux its AppImage never turns Chromium’s sandbox off; 0.2.1 on Linux is told beforehand.