Celestial Event

• Death of Sun
• Meteor/Asteroid Strike
• Alien Invasion
• Solar Flare
• Black Hole
• Planetary Collision

Geological Event

• Earthquake
• Tsunami
• Volcano
• Geomagnetic Reversal
• Sea Level Rise

Climate/Weather Event

• Flood
• Drought
• Climate Change
• Extreme Weather Event
  • Storm
  • Hurricane
  • Tornado
  • Wind
  • Blizzard

Biological Event

• Disease
• Emergence/Arrival of New Species
• Mutation
• Sterility

Technological/Scientific Event

• Artificial Intelligence Uprising
• New Technology

Religious/Occult Event

• Rapture
• Demonic Summoning
• Return of Supernatural Creature
• Endtimes

Ecological Event

• Famine
• Mass Extinction

Political Event

• War
• Nuclear Armageddon
• Decline of Society
• New Superweapon