63 Steam achievements, 25 hidden until you've already earned them
Data from build 22529139, updated
Overview
Hollow Knight's Steam page tracks 63 achievements: 38 stay visible in your list from the start, and the other 25 stay hidden until you've already earned them. Most of the hidden batch exists to protect story spoilers. The game's four endings sit there, alongside boss kills like Mortality for the Soul Tyrant and Ritual for the Nightmare King. The visible 38 lean toward goals you're chasing on purpose instead, things like Masked for every Mask Shard, Blessed for every Charm, the three Colosseum trials, and completion tiers that top out at Pure Completion for a 112% clear. Pure Completion itself asks for every Charm, Mask, Vessel Fragment, map, and Journal entry filled in; knowing that list and routing an efficient 112% clear are two different problems.
How Achievements Work
Endings are the biggest spoiler risk on this list, and the card below names all four. Skip it if you’d rather find out for yourself.
The Game’s Endings
Four endings, four achievements. The Hollow Knight covers the default fight, Sealed Siblings needs Void Heart equipped when that fight ends, Dream No More comes from using the Awoken Dream Nail to fight Radiance instead, and Embrace the Void asks you to beat Absolute Radiance at the top of the Pantheon of Hallownest. All four sit in the hidden list, so the achievement popup is the only spoiler warning most players get.
What’s Hidden
Hidden achievements cluster around story spoilers: bosses, endings, NPC fates like Witness for Quirrel, and secrets the game doesn't want spoiled in a menu, like Passing of the Age for finishing Mister Mushroom's questline. All four Pantheon clears sit on the hidden side too, which is a strange call for content that's pure grind rather than plot.
Spoilers are blurred. All 25 hidden achievements have their unlock text covered, the four endings included. Click one to read it, or open the lot.
All Achievements
Showing 63 of 63
Achievement
Type
Unlock Condition
Protected
Visible
Acquire 4 Mask Shards
Masked
Visible
Acquire all Mask Shards
Charmed
Visible
Acquire your first Charm
Enchanted
Visible
Acquire half of Hallownest’s Charms
Blessed
Visible
Acquire all Charms and receive Salubra’s blessing
Soulful
Visible
Acquire 3 Vessel Fragments
Worldsoul
Visible
Acquire all Vessel Fragments
Falsehood
Visible
Defeat the False Knight
Strength
Hidden
Test of Resolve
Visible
Defeat Hornet in Greenpath
Proof of Resolve
Hidden
Illumination
Visible
Defeat the Soul Master
Mortality
Hidden
Release
Visible
Defeat the Broken Vessel
Peace
Hidden
Honour
Visible
Defeat the Dung Defender
Respect
Visible
Defeat the Mantis Lords
Obsession
Hidden
Rivalry
Hidden
Neglect
Visible
Leave Zote to die
Attunement
Visible
Collect 600 Essence
Awakening
Visible
Collect 1800 Essence and awaken the Dream Nail
Ascension
Hidden
Grubfriend
Visible
Rescue half of the imprisoned grubs
Metamorphosis
Visible
Rescue all of the imprisoned grubs
Purity
Hidden
Happy Couple
Hidden
Witness
Hidden
Solace
Visible
Bring peace to the Grey Mourner
Execution
Visible
Defeat the Traitor Lord
Connection
Visible
Open half of Hallownest’s Stag Stations
Hope
Visible
Open all of Hallownest’s Stag Stations and discover the Stag Nest
Teacher
Visible
Destroy Monomon the Teacher
Watcher
Visible
Destroy Lurien the Watcher
Beast
Visible
Destroy Herrah the Beast
Cartographer
Visible
Acquire a map of each area
Warrior
Visible
Complete the Trial of the Warrior
Conqueror
Visible
Complete the Trial of the Conqueror
Fool
Visible
Complete the Trial of the Fool
The Hollow Knight
Hidden
Sealed Siblings
Hidden
Dream No More
Hidden
Void
Hidden
Speedrun 1
Visible
Complete the game in under 10 hours
Speedrun 2
Visible
Complete the game in under 5 hours
Completion
Visible
Achieve 100% game completion and finish the game
Speed Completion
Visible
Achieve 100% game completion and finish the game in under 20 hours
Steel Soul
Visible
Finish the game in Steel Soul mode
Steel Heart
Visible
Achieve 100% game completion and finish the game in Steel Soul mode
Keen Hunter
Visible
Record all of Hallownest’s creatures in the Hunter’s Journal