Henry is in the saloon from the beginning, as he is already needed for the game's tutorial.
So the requirement is to have a game account and log into a world.
it depends
if we talk about just accessing quest from him, then just registering into a new world, the first quest is from him.
if we talk about freely accessing him, then you have to finish quest save the saloon part 1
Nincs előfeltétele, a világra való regisztrálást követően, azonnal ő fogad minket az első tutorial, bevezető kalanddal.
There is no requirement, after registration to given world Henry Walker will meet us immediately with the newcomer's quest.