Tremor is a Keeper Spell in Dungeon Keeper 2 and Dungeon Keeper Online (in which its name translates to Seismology). It causes an earthquake and cave-in, damaging creatures and walls (Fortified Walls become Rock) in the vicinity.
| ||Armageddon / Call to Arms / Cave-In / Chicken / Conceal Monster / Create Imp / Destroy Walls / Disease / Heal / Hold Audience / Lightning Strike / Must Obey / Possess Creature / Protect Monster / Sight of Evil / Speed Monster|
| ||Call to Arms / Chicken / Create Gold / Create Imp / Heal / Inferno / Possession / Sight of Evil / Summon Horny / Thunderbolt / Tremor / Turncoat|
| ||Assembly / Create Imp / Deception / Detection / Electric Shock / Enchant / Exorcism / Heal / Possession / Seismology|
| ||Time Bomb|
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