The Fear Trap in Dungeon Keeper 2 scares creatures away.
Vampires, Skeletons and any creature that has been in the Casino for too long can dismantle a Fear trap in no time, but everyone else takes a time out while they work up the nerve to approach (if ever). Use to protect traps such as the Sentry Trap and Lightning Trap and slow down enemy assaults along certain routes.
There is also a Fear Trap in Dungeon Keeper Online, which behaves like its Dungeon Keeper 2 counterpart.[1]
References
