Grubfather's Rewards

Deep within the Forgotten Crossroads, the benevolent Grubfather eagerly awaits the return of his lost children. Rescuing these adorable, trapped grubs is not only a noble deed but also a highly rewarding endeavor, as the Grubfather bestows valuable items upon the Knight for each grub saved. This guide details the rewards you can expect and offers strategies for maximizing your grub collection.

Finding the Grubs

There are a total of 46 grubs scattered across Hallownest, often hidden behind breakable walls, within challenging platforming sections, or guarded by enemies. Equipping the Grubsong charm (obtained after rescuing 10 grubs) is highly recommended, as it provides Soul when the Knight takes damage, making exploration and combat more forgiving. Additionally, the Grubfather's Map, purchased from Iselda in Dirtmouth, will mark the general locations of unrescued grubs on your map, though it won't pinpoint their exact hiding spots.

Reward Tiers and Strategies

The Grubfather's generosity scales with the number of grubs you bring home. His rewards are cumulative, meaning you'll receive each item as you hit the respective milestone. It's often beneficial to prioritize grub hunting early in your playthrough to gain access to powerful charms and geo boosts.

1 Grub: 100 Geo. A small but welcome starting bonus.
2 Grubs: 150 Geo. Continues to aid early game purchases.
3 Grubs: 200 Geo.
4 Grubs: 250 Geo.
5 Grubs: 300 Geo.
6 Grubs: 350 Geo.
7 Grubs: 400 Geo.
8 Grubs: 450 Geo.
9 Grubs: 500 Geo.
10 Grubs: Grubsong charm. This is a crucial early-game charm. When the Knight takes damage, it generates 15 Soul. This can be a lifesaver in tough encounters or when exploring without a reliable Soul source.
11 Grubs: 550 Geo.
12 Grubs: 600 Geo.
13 Grubs: 650 Geo.
14 Grubs: 700 Geo.
15 Grubs: 750 Geo.
16 Grubs: 800 Geo.
17 Grubs: 850 Geo.
18 Grubs: 900 Geo.
19 Grubs: 950 Geo.
20 Grubs: Grubberfly's Elegy charm. A powerful charm that allows the Knight to shoot white projectiles from their nail when at full health. This significantly increases your ranged damage output and is excellent for boss fights or clearing groups of enemies from a distance.
21 Grubs: 1000 Geo.
22 Grubs: 1050 Geo.
23 Grubs: 1100 Geo.
24 Grubs: 1150 Geo.
25 Grubs: 1200 Geo.
26 Grubs: 1250 Geo.
27 Grubs: 1300 Geo.
28 Grubs: 1350 Geo.
29 Grubs: 1400 Geo.
30 Grubs: Pale Ore. This rare material is essential for upgrading your nail at the Nailsmith in the City of Tears. You'll need four pieces of Pale Ore in total for all nail upgrades, so every piece is valuable.
31 Grubs: 1450 Geo.
32 Grubs: 1500 Geo.
33 Grubs: 1550 Geo.
34 Grubs: 1600 Geo.
35 Grubs: 1650 Geo.
36 Grubs: 1700 Geo.
37 Grubs: 1750 Geo.
38 Grubs: 1800 Geo.
39 Grubs: 1850 Geo.
40 Grubs: Mask Shard. Collecting four Mask Shards will grant you an additional health mask, increasing your survivability significantly.
41 Grubs: 1900 Geo.
42 Grubs: 1950 Geo.
43 Grubs: 2000 Geo.
44 Grubs: 2050 Geo.
45 Grubs: 2100 Geo.
46 Grubs (All Grubs): King's Idol. This rare artifact can be sold to Relic Seeker Lemm in the City of Tears for a substantial sum of Geo (1500 Geo). It's a fitting reward for completing such a monumental task.

Post-Game Considerations

After rescuing all 46 grubs and receiving the King's Idol, returning to the Grubfather's home will reveal a disturbing, yet ultimately rewarding, transformation. The Grubfather will have consumed all of his children, becoming a massive, bloated creature. Striking him will cause him to drop a significant amount of Geo, representing the final "reward" for your efforts. This act does not negatively impact your game progression or achievements, and is simply a unique, if unsettling, conclusion to the Grubfather's questline.