Hollow Knight: Silksong: Steam Achievements & 100% Unlock Guide
Unlock all 52 Steam achievements in Hollow Knight: Silksong by completing the main campaign across all ending branches, defeating optional bosses, acquiring all tools and Crests, rescuing all 30 lost fleas, and beating Steel Soul mode.
Hollow Knight: Silksong features 52 Steam achievements testing combat mastery, exploration, quest completion, speedrunning, and hardcore permadeath survival. Use this checklist to track your completion progress and avoid missable trophy triggers.
What are the missable achievements in Hollow Knight: Silksong?
Missable achievements involve specific NPC quest choices, speedrun timers, and Steel Soul permadeath conditions.
Key missable triggers include:
- Merchant & NPC Fate Quests: Choices made in Green Prince's questline in Sinner's Road and Yarnaby's curse clearance in Greymoor lock or unlock specific boss achievement encounters.
- Speedrun Timers: Clearing the game in under 5 hours (Achievement #32) or achieving 100% completion in under 30 hours (Achievement #33) requires optimized routing on dedicated save files.
- Steel Soul Permadeath: Dying on a Steel Soul save file permanently deletes your save data, failing Steel Soul (Achievement #34) and Steel Heart (Achievement #35) attempts.
Safe-Quit Strategy in Steel Soul: If health drops to 1 mask during a tough fight, pause and quit to the main menu. Reloading places Hornet back at the last used bench with full health restored. Equipping the Fractured Mask (bought from Mottled Skarr for 260 Rosaries) serves as a visual warning when taking critical damage.
How do you achieve 100% game completion?
Achieving 100% completion requires collecting all Mask Shards, fully upgrading the Silk Spool, rescuing all 30 lost fleas, acquiring all tools and Crests, and clearing major regional quests.
Track your completion percentage on your save selection screen after beating the game once:
- Mask Shards & Spool Fragments: Collect all 4 Mask Shards (+1 mask) and all 18 Spool Fragments (full spool upgrade).
- Fleas & Wish Boards: Rescue all 30 lost fleas for the Caravan and complete settlement Wish board requests.
- Hunter's Journal: Defeat every enemy type across Pharloom and return to Nuu in Greymoor.
Complete 52 Steam Achievement Directory
| ID | Achievement Name | Classification | Hidden | Unlock Conditions & Notes |
|---|---|---|---|---|
| 1 | Equipped | Progression | No | Craft or purchase your first Tool at a bench. |
| 2 | Arsenal | Progression | No | Find or craft every Tool in the game. |
| 3 | Bound | Progression | No | Bind your first Silk Skill (Silkspear) in Mosshome. |
| 4 | Woven | Progression | No | Locate and bind all six Weaver Silk Skills across Pharloom. |
| 5 | Claimed | Progression | No | Claim your first Crest (Reaper Crest in Greymoor). |
| 6 | Consumed | Progression | No | Collect all 7 Crests (Hunter, Wanderer, Reaper, Beast, Witch, Architect, Shaman). |
| 7 | Protected | Progression | No | Collect 4 Mask Shards to increase max health by one mask. |
| 8 | Masked | Progression | No | Collect every Mask Shard in Pharloom. |
| 9 | Restored | Progression | No | Collect 2 Spool Fragments to increase Silk Spool capacity. |
| 10 | Extended | Progression | No | Collect all 18 Spool Fragments to fully upgrade the Silk Spool. |
| 11 | Regenerated | Progression | No | Find all three Silk Hearts. |
| 12 | Cartographer | Exploration | No | Purchase every area map from Shakra or her Bone Bottom camp. |
| 13 | Connected | Exploration | No | Unlock every fast travel Bellway station in Pharloom. |
| 14 | Transported | Exploration | No | Open all Ventrica lift stations inside the Great Citadel. |
| 15 | Keen Hunter | Quest | No | Complete Nuu's hunting checklist in Greymoor Halfway House. |
| 16 | True Hunter | Quest | No | Complete the Hunter's Journal and return to Nuu. |
| 17 | Flea Finder | Quest | No | Rescue 15 out of 30 lost fleas across Pharloom. |
| 18 | Fleafriend | Quest | No | Rescue all 30 lost fleas and return to the Caravan in Putrified Ducts. |
| 19 | Liberated | Boss | No | Defeat the wild Bell Beast in its nesting pit in The Marrow. |
| 20 | Pharloom's Welcome | Boss | No | Defeat Lace in her first duel in Deep Docks. |
| 21 | Servant | Boss | No | Defeat the Fourth Chorus guardian in Far Fields. |
| 22 | Fanatic | Boss | No | Defeat the Widow boss inside Bellhome. |
| 23 | Judge | Boss | No | Defeat the Last Judge guarding the Grand Gate in Blasted Steps. |
| 24 | Last Dance | Boss | No | Defeat the Cogwork Dancers in Citadel Choral Chambers. |
| 25 | Tragedian | Boss | No | Defeat the theatrical butterfly boss, Trobbio. |
| 26 | Granted | Quest | No | Complete any request from a local settlement Wish board. |
| 27 | Glutton | Quest | No | Complete "The Great Taste of Pharloom" quest for Grand Gourmand. |
| 28 | Trail's End | Quest | No | Complete Shakra's personal wish after buying all her maps. |
| 29 | Resident | Quest | No | Complete all Bellhart restoration requests and speak to Pavo. |
| 30 | Harmonious | Quest | No | Perform the Threefold Song in Cogwork Core. |
| 31 | Completion | Challenge | No | Achieve 100% completion on your save file and finish the game. |
| 32 | Speedrunner | Challenge | No | Complete the entire game in under 5 hours. |
| 33 | Speed Completion | Challenge | No | Achieve 100% completion and finish the game in under 30 hours. |
| 34 | Steel Soul | Challenge | No | Finish the game in Steel Soul mode (hardcore permadeath). |
| 35 | Steel Heart | Challenge | No | Achieve 100% completion and finish the game in Steel Soul mode. |
| 36 | Lamenter | Boss | Yes | Defeat Clover Dancers. Save Green Prince in Sinner's Road, enter Verdania in Act III. |
| 37 | Bonded | Boss | Yes | Defeat the hidden Bell Eater boss in Act III. |
| 38 | White Knight | Boss | Yes | Defeat Lace in her second duel within the Cradle. |
| 39 | Grey Ghost | Boss | Yes | Defeat the Phantom guardian inside Exhaust Organ via Sinner's Road Mists. |
| 40 | Heretic | Boss | Yes | Defeat optional boss First Sinner in the Slab (requires Key of Apostate). |
| 41 | Tyrant | Boss | Yes | Defeat optional boss Crust King Khann in Coral Tower during Act III. |
| 42 | Seed | Boss | Yes | Defeat hidden boss Nyleth in secret segment of Grand Gate in Act III. |
| 43 | Diva | Boss | Yes | Defeat Skarrsinger Karmelita in Far Fields performance area in Act III. |
| 44 | Hero's Call | Boss | Yes | Defeat Lost Garmond. |
| 45 | Fatal Resolve | Boss | Yes | Defeat hidden boss Pinstress in her lair. |
| 46 | Entwined | Quest | Yes | Bind Eva in Weavenest Atla after meeting her slot unlock thresholds. |
| 47 | Remembrance | Quest | Yes | Claim the Everbloom in Red Memory after collecting all three Old Hearts. |
| 48 | Weaver Queen | Ending | Yes | Defeat Grand Mother Silk at end of Act II and choose "Bind" (Ending 1). |
| 49 | Snared Silk | Ending | Yes | Defeat Grand Mother Silk and entrap her with Soul Snare (Ending 2, unlocks Act III). |
| 50 | Twisted Child | Ending | Yes | Defeat Grand Mother Silk while cursed by Twisted Bud (Ending 3). |
| 51 | Sister of the Void | Ending | Yes | Defeat Lost Lace in the Abyss during Act III (Ending 4, True Ending). |
| 52 | Passing of the Age | Ending | Yes | Complete Mister Mushroom's questline across Pharloom (Ending 5, Epilogue). |
For 100% Steel Heart runs, complete all optional bosses in Act I and Act II before triggering Act III, as Act III void corruption doubles baseline enemy damage.
Does quitting to main menu invalidate Steel Soul achievements?
No. Quitting to the main menu when health is low is a standard safe strategy that reloads your save at the last bench.
Can I get all endings on a single save file?
Yes. Reloading your save file after seeing an ending credits sequence returns you to the bench before the final boss.
How many fleas must be rescued for Fleafriend?
You must rescue all 30 lost fleas scattered across Pharloom biomes and return to the Caravan in Putrified Ducts.