Grey House Demon Door:
Complete the Mayor's invitation quest to marry Lady Grey of Bowerstone to open the Demon Door and get the Axe of Ronok which is behind it.

Barrow Fields Demon Door:
Open the Demon Door to get Will Master's Elixer by being obese with a full health bar. Do this by quickly eating red meat, apple pies and drinking beer.

Darkwood Marshes Demon Door:
To open the Demon Door and obtain Will User's Dark Suit successfully defeat a horde of Hobbes in the challenge set by the Demon Door.

Rose Cottage Demon Door:
To obtain Will User's Bright Suit give the Demon Door a rose or a cheap gift.

Greatwood Gorge Demon Door:
To obtain Wellow's Pickhammer the Demon Door will require that you do one of the following evil deeds:
A) Eat Crunchy Chick food in front of it
B) Commit Murder in front of it
C) Be 100% evil

Greatwood Caves Demon Door:
To obtain the Cutlass Bluetane at the Demon Door take a combat challenge to test your multiplier, your multiplier must be at least 14 when you approach this Demon Door. Use a physical shield during the challenge to keep your multiplyer from dropping off and use Slow Time to avoid damage.

Heroes Guild Demon Door:
Buy a lamp in Bowerstone and Shine the Demon Door with it and it will open to reveal the Tattoo Card, Books and Elixer of Life.

Knothole Glade Demon Door:
To open this Demon you have to shoot it with a bow which is at least as powerful as the Ebony Bow. When the Demon Door has been opened you will receive an Elixir of Life.

TwinBlade's Camp Demon Door:
This Demon Doors requirements to open is that you bring three of its friends. This Demon Door has bad vision and can be fooled into seeing three of its friends by getting three members from your party to wear the following clothes:
1) Dark Will User's Clothes
2) Bandits Gear
3) Bright Plate Armour
You will find the Dollmaster's Mace behind this door.