Pack merchants

Pack merchants give upgrades to inventory space in. Unlike other merchants, they do not buy or sell items. They can increase one's inventory from 60 to 140 spaces, with each upgrade giving 10 spaces. Other inventory spaces can be obtained from horse training (60 max) and the Bristleneck War Boar (5), for a grand total of 205.

Note that bag space can also be purchased from the Crown Store. This is more cost-effective in terms of Crowns after most upgrades have been purchased with gold.

The Level Up Advisor will give a free bag upgrade upon reaching level 12 if no upgrades have been bought.