Experiment (level 25) Experiment (level 25 arachnid) Experiment (level 51)
Release date 31 January 2005 (Update)
Members? Yes
Combat level 25, 51
Always drops Bones
One of Fenkenstrain's failed experiments.

It has a key hanging from its collar.

Combat info
Hitpoints 100, 40
Aggressive No
Poisonous No
Max hit 1, 6
Weakness None
Attack Styles
Slayer icon Slayer info
Not assigned
Combat icon Combat stats
Attack icon Strength icon Defence icon Magic icon Ranged icon
1 1 30 1 1
Attack icon Aggressive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+0 +0 +0 +0 +0
Defence icon Defensive stats
White dagger White scimitar White warhammer Magic icon Ranged icon
+0 +0 +0 +0 +0
Other bonuses Immunities
Attack icon
Strength icon
Ranged Strength icon
Magic Damage icon
Poison hitsplat
Venom hitsplat
+0 +0 +0 +0% Not immune Not immune
Attack speed
Monster attack speed 4

Experiments can be found in the experiment cave which can be accessed during Creature of Fenkenstrain quest. They are accessed after the star amulet is placed on the easternmost memorial with the indent on it and then pushed to reveal their dungeon.

Due to having very high hit-points, low resistances to melee attacks and very weak attacks (rarely hitting above a 0), the level 25 experiments are popular for players wishing to train combat skills from 1-70.


The level 51 experiment may only be killed during the Creature of Fenkenstrain quest in order to obtain the cavern key. If the player already has a cavern key in their inventory or if it has been used on the gate, they can no longer attack this experiment and instead receive the message "You don't have the heart to kill the poor creature again."


  • The half sheep half wolf experiment may refer to the saying A wolf in sheep's clothing. Or possibly 'sheep-dog'.
  • The half man half spider is a reference to 'Spider-Man'.
  • The half wolf and half woman is a reference to 'She-Wolf'.