Arkenelle
Install once
Install with the itch.io app from kjp403.itch.io/arkenelle. Later releases update inside the app. Browser downloads will not auto-update.
Where to start
Talk to the Hall Keeper in Castle Garden. That first quest is orientation, not a class lock. Every Hero can train every weapon and every profession.
Guilds
Join or found a guild, capture a territory banner, and earn Glory for as long as you hold it. See Guild in-game, or the live leaderboards.