Here is the full list of all 14 INSIDE achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Something’s not right down here
Dive back in
Shadows at noon
It comes together
Skipping stones at the beach
Do an elevator pitch
They never made it to market
Take a deep breath
Unearthing secrets
Dislodging derelict in the depths
Hanging up
Pull together
Lies beneath the city
Safe falling and hard landings