These are currently all the apps that are available via the App Store. Apps in the App Store are pre packed and ready to go installations. But you your able to install any Debian package via sudo apt-get install from the command line.
Also instead of Deluge there is transmission in the app store
I read somewhere that deluge has available in osmc via app store thats why i’m asking.
I installed deluged via apt-get but the remote access when is downloading is extremely slow.