No missable achievements (plus 28 unknown)
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Enter the main lobby of Aperture Science Innovators
Who is that?
Discover a new way to turn down the heat
Super Drowning Skills
Solve the same test three times!
Get shot on the turret range
Get burned whilst in the goo
Shutdown AEGIS in Story Mode
Find all the Vitrified door messages
Try to bring the cube with you
Not even all the way!
MAKE IT STOP
Get into the vents
Check that all doors have been locked for the night
Refuse to Listen