In the expansive world of Hollow Knight, players encounter a diverse array of vendors strategically located across the Kingdom of Hallownest. These merchants serve as essential sources for buying and trading goods and services, significantly aiding players in their journey through the game. The primary vendor locations are as follows:

1. Dirtmouth: Serving as a central hub, Dirtmouth features several merchants, providing players with initial access to essential items and upgrades.

2. Forgotten Crossroads: This area hosts Salubra, a crucial vendor who specializes in charms, particularly charm notches that enhance the player’s abilities.

3. Fungal Wastes: Located within this mushroom-laden region, players can find offerings that suit their exploratory and combat needs.

4. Colosseum of Fools: Known for its combat challenges, this location features merchants that cater to players striving to conquer tough battles for unique rewards.

5. Fog Canyon (Pleasure House): This vendor offers unique services and items that may not be found in other locations.

6. City of Tears: A significant area filled with multiple merchants, including notable figures like Relic Seeker Lemm, who specializes in buying relics from players, enabling them to acquire much-needed Geo.

7. Stag Station: While primarily a fast travel hub, some vendors here might offer items or services linked to the transportation network across Hallownest.

8. Royal Waterways: This often-overlooked area still provides access to unique vendors that can be invaluable during exploration.

Additionally, specialized merchants like Steel Soul Jinn, who appears only in Steel Soul mode, add another layer of interaction by offering unique services such as buying Rancid Eggs for Geo.

The distribution of merchants across both central and peripheral locations reflects their integral role in player progression. Through variety—selling charms, map upgrades, keys, and special goods—vendors contribute significantly to the customization of the Knight. Players will often find that strategically engaging with these vendors is crucial for unlocking new abilities, items, and ultimately enhancing their overall experience within the beautifully crafted world of Hollow Knight.