Portal Stories: Mel achievements

8.60%

Under the Stairs

9.63%

You Shouldn't be Here

9.77%

2056

MAKE IT STOP

10.04%

Single rainbow

Not even all the way!

10.11%

Crushed

10.18%

Persistent

Check that all doors have been locked for the night

10.59%

Beyond your Range of Hearing

Refuse to Listen

10.80%

In the Vents

Get into the vents

11.97%

Forever Alone

Try to bring the cube with you

12.45%

Curious

Find all the Vitrified door messages

14.51%

System Shutdown

16.16%

Into Darkness