10
Table Comparing Dungeon World to 5 Hacks
(troypress.com)
Man - according to this table, I should be very interested in Unlimited Dungeons - but the link in the table appears to be broken?
EDIT: I did find a link to a copy of a backup from Oct '21: https://drive.google.com/file/d/1pv6kVVJhbJi1vr8hVeWh1NqrDQJKgY1B/view?usp=drivesdk
You can also find the UG rules on the Dungeon World Discord: https://discord.gg/dungeon-world-236959672538628096