Portal Stories: Mel achievements

8.54%

Under the Stairs

9.57%

You Shouldn't be Here

9.71%

2056

MAKE IT STOP

9.99%

Single rainbow

Not even all the way!

10.06%

Crushed

10.12%

Persistent

Check that all doors have been locked for the night

10.54%

Beyond your Range of Hearing

Refuse to Listen

10.74%

In the Vents

Get into the vents

11.91%

Forever Alone

Try to bring the cube with you

12.40%

Curious

Find all the Vitrified door messages

14.46%

System Shutdown

16.12%

Into Darkness