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Shell Inside Achievements

Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.

Total achievements8
Rarest rate5.80%
Ultra rare0
Last checkedOct 18, 2026
Delayed official data

Rates and award counts were last observed on Oct 18, 2026.

1
Podcast Enthusiast

Listen to the audio log until the very last word

Rare
5.80%last reported global rate
2
Rebel

Refuse to follow the rules and stay in the first room

Rare
5.80%last reported global rate
3
Secret X

unlock Room X-000

Rare
5.80%last reported global rate
4
Drowned in Memories

Drowned in Memories river

Rare
17.6%last reported global rate
5
Back to Reality

You managed to wake up

Uncommon
23.5%last reported global rate
6
Going Deeper

The second location is cleared

Uncommon
23.5%last reported global rate
7
Safe Zone

Find a hiding spot

Uncommon
23.5%last reported global rate
8
Divergence

You have cleared the first location

Uncommon
35.2%last reported global rate