I made this guide to show people how to get to the Developer Playground. If a part of this guide is unclear, please tell me.

If you would prefer to watch a video then click the link below.
https://www.youtube.com/watch?v=qsktRtf-ptM

You can find my other White Knuckle guides here:
White Knuckle 100% All Achievements Guide
White Knuckle All Items Detailed Guide
White Knuckle All Creatures and Hazards Detailed Guide
White Knuckle How to Use the Cheat Console
White Knuckle All Perks
White Knuckle All Logbook Unlocks
White Knuckle How to Mod the Game
White Knuckle How to Get Good at the Game
White Knuckle Best Routes For Every Room (W.I.P)

Enter the tutorial.

Climb to the area with the white hand right before you learn about the inventory.

Grab one piton and a hammer at the inventory area.

Come back to the white hand area, and put a piton somewhere in this area.

Use the piton to climb up to the light.

Then jump to the part of the wall thats sticking out. Climb upwards from here.

Climb up to here.

Pull out the vent above you.

Traverse the vent. (You must be crouched)

Pull out the other end of the vent.

Take a left to go this way.

Go inside the hole in the ceiling.

Go to the vent from here.

You are now at the entrance.

Click the button, and you'll be sent to the Developer Playground.

Next time you come to the tutorial, there will be easy access to the playground behind you.