Silksong Hidden Achievements: All You Need to Know

What to know

• There are 52 achievements in Hollow Knight: Silksong, with 16 hidden (secret) ones.
• Hidden achievements often link to tough bosses, rare quests, or unusual conditions.
• Some hidden achievements require being under special conditions, like fighting while cursed.
• Unlocking all hidden achievements is essential for 100% completion and the Platinum trophy.

Curiosity and tenacity pay off massively in Hollow Knight: Silksong, where secret achievements challenge you to explore every dark corner and tackle the most obscure boss fights. With spoilers kept to a minimum, here’s a detailed look at what these hidden tasks involve and how to claim them.

How Silksong's hidden achievements are structured

The hidden achievements in Silksong aren’t just for defeating obscure bosses—they tie deeply into the game’s secret endings and story routes. 16 out of the 52 total trophies/achievements are flagged as hidden, making them invisible or cryptic until unlocked. These span everything from boss rematches to rare side-quest outcomes, and some are only achievable under specific, time-sensitive conditions.

Recognizing the hidden achievements in Silksong

Here is the full list of Silksong’s hidden achievements, each one pointing to a unique milestone, boss, or questline:

How to unlock Silksong hidden achievements step by step

There’s no way around spoilers if chasing these secrets. For completionists, here’s a methodical guide:

Step 1

Play at your own pace for the first run, but track critical missable achievements like Twisted Child to avoid getting locked out. Early exploration and talking to every NPC will make sure key events aren’t missed.

Step 2

For each boss or side quest listed above, look for hints in the environment—hidden rooms, suspicious arenas, or incomplete questlines are a giveaway. Keep an extra save file if possible before story forks or applying curses. Or, if you're really out of ideas, check out our walkthroughs.

Step 3

Some tasks need a specific state, like having Hornet cursed before a boss—a state which often can’t be regained if lost. Talk to every side-quest NPC, especially in Shellwood, to track these conditions.

Step 4

Bosses with two hidden achievements (i.e., Grand Mother Silk) require facing them under different circumstances: once normally and once with a curse. Prepare accordingly, and check in-game journals for hints before major fights.

Step 5

On the final run, combine permadeath mode (Steel Soul) and a speedrun to polish off any remaining hidden achievements. By this point, insight from prior playthroughs helps with efficiency, especially for tough boss and collection requirements.

Tips and useful info for hidden achievement hunting

• Double-check every boss room and NPC hub during each story branch.
• Mark potential missable achievements before starting a new playthrough.
• Use backups or cloud saves before applying unique quest states, such as curses.
• For “Remembrance,” remember to explore memory realms after finding key quest items.
• Consult our guides if one of the 16 secret achievements seems elusive or bugged.

Hidden vs standard: What makes hidden achievements special

Hidden achievements often reveal themselves later in the game (or not until certain conditions are met). They tend to have more severe or unusual conditions (e.g. curse, variant, non‐standard gameplay). They're also further correlated with completionist goals such as collecting all crests, defeating optional or secret bosses, or doing all area explorations.

On the other hand, standard achievements are more transparent / shown in list from start, linked to progression, tools, getting mask shards etc.

Hidden achievements some players might miss

Here are a few of the hidden ones many players tend to overlook:

• Twisted Child, because defeating Grand Mother Silk while cursed is quite difficult and requires knowing how to get cursed and then still mount a successful boss fight.
• Entwined (Bind Eva), because binding Eva requires collecting multiple crests and memory lockets—things you might not focus on early.
• Passing of the Age, since it requires fulfilling the Herald’s Wish, which may be less obvious unless you explore side content.

Hidden achievements in Silksong add a rich layer of depth and reward for players who explore, experiment, and push themselves beyond the main story. Tracking which ones are still locked, planning your route to get the required skills / items, and saving wisely will help unlock them all. Even if you don’t go for 100%, aiming for a few hidden ones can change your experience in a rewarding way.