Geo is the currency of Hallownest used in Hollow Knight. There are three types of Geo drops:

Type
1Geo.png
5Geo.png
10Geo.png
Worth Geo.png1 Geo.png5 Geo.png25

Use

Used to buy goods from merchants or to pay tolls for Stag Stations and Benches. Also used to pay the Nailsmith to upgrade the Knight's Nail.

Tolls


Merchants

  • Geo.png1079 for all of the maps from Cornifer (Geo.png1515 if bought from Iselda)
  • Geo.png1780 for Iselda's stock (charms and pins)
  • Geo.png1286 for all three Fragile Charms bought from Leg Eater (Geo.png1046 if wearing Defender's Crest)
  • Geo.png1350 to unlock all of the trials at the Colosseum
  • Geo.png100 to make a bank account with Millibelle
  • Geo.png7050 to fully upgrade the Nail
  • Geo.png5410 to buy everything from Salubra (Geo.png1690 for the Charms + Geo.png2920 for Notches + Geo.png800 for her Blessing)
  • Geo.png9260 to buy everything from Sly
  • Grimm Troupe Icon.png Geo.png36,000 to upgrade all Fragile Charms to Unbreakable at Divine

Miscellaneous


Infinite Purchases

The following can be bought at infinite supply, provided the player is not on Steel Soul Mode.

  • Geo.png80-100 per Rancid Egg bought from Tuk
  • Geo.png120-350 per repair of a Fragile Charm at Leg Eater

Summary of Costs

  • Geo.png69235 to buy everything at the most sparing prices
  • Geo.png69911 to buy everything without extra exertion (Geo.png676 difference)

How to Acquire

A Geo chest

Geo can be gained in several different ways:

While the Gathering Swarm Charm is equipped, a small swarm will gather any dropped Geo for the player, except those fallen in acid. Fragile Greed (as well as its unbreakable variant) increases the amount of Geo enemies drop.

Keeping Relics to sell to Lemm when Geo is needed is particularly useful because unlike Geo, these items are not lost upon death.

A great early source of Geo is the Husk Guards in Forgotten Crossroads. Many enemies in the City of Tears, especially Great Husk Sentries, as well as Hoppers and Great Hopper in Kingdom's Edge, are also great sources of Geo.

The fastest ways to farm Geo later in the game are to continuously complete the Trial of the Conqueror or to farm Dirtcarvers and Carver Hatchers in the Failed Tramway with Fragile Greed or Unbreakable Greed equipped.


Large Geo deposit

One-time Major Sources

  • Gorgeous Husk in the City of Tears drops Geo.png420 upon death (Geo.png672 with Fragile Greed equipped)
  • In Kingdom's Edge, there is a hidden passage accessible by breaking a wall in a room with a Great Hopper and a lot of spike pits. At the very bottom of it is the largest Geo deposit in the game, rewarding Geo.png420. This value is not increased by Fragile Greed.
  • Millibelle the Thief will return roughly 1.5x what is deposited in her shell, when in the Pleasure House. See here for more details on this process.

Gallery

Trivia

  • The maximum capacity for Geo is 9,999,999.
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