World events are random things that can happen from time to time. They can be positive or negative. Most of them go away after some time.
Ancient Discovery[]
Type: Positive
Ancient Ruin world feature appears near affected city.
Baby Boom[]
Type: Positive
Minimum turn: 31
Duration: 5-15 turns
Race: May affect every race other than Unhallowed
Increases population growth by flat +100
Bad Moon[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
???
Blood Moon[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
???
Blue Moon[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
???
Breakthrough[]
Type: Positive
Instantly finishes current spell research.
Call to Arms[]
Type: Positive
Instantly finishes current unit production
Chaos Moon[]
Type: Negative
Minimum turn: 61
Duration: 2-5 turns
???
Comet[]
Type: Negative
Minimum turn: 81
Part of population in affected coastal city dies (10-25% probably).
Destroys 1-3 buildings.
Corrupts 2-5 tiles.
All units in affected city receive 8d8 fire damage.
Dark Presence[]
Type: Negative
Minimum turn: 31
2-5 land tiles in affected city's range become corrupted.
Dawn of the Dragons[]
Type: Negative
Minimum turn: 151
1-2 hostile Fire Drakes appear near affected city.
Disjunction[]
Type: Negative
Minimum turn: 31
Random global enchantment gets dispelled (this includes all city and unit enchantments cast from strategic map).
Earthquake[]
Type: Negative
Minimum turn: 81
Part of population in affected coastal city dies (10-20% probably).
Destroys 1-2 buildings.
All units in affected city receive 15d6 bludgeoning damage.
Enter the Titan[]
Type: Negative
Minimum turn: 151
Devs suggest you should have already won by now by spawning aggressive Neutral titan near affected city.
Equinox Celebration[]
Type: Positive
Minimum turn: 51
Duration: 5-20 turns
Race: May affect every race other than Unhallowed
-20 unrest in all cities.
Famine[]
Type: Negative
Minimum turn: 31
Duration: 5-15 turns
Race: May affect every race other than Unhallowed
Affected city receives -75% penalty to food production.
Fauna Bloom[]
Type: Positive
Minimum turn: 31
Animal resource appears close to affected city.
Flora Bloom[]
Type: Positive
Minimum turn: 31
Plant resource appears close to affected city.
For the Good of the Empire[]
Type: Positive
Minimum turn: 51
Adds 25-100 gold to your treasury.
Gaia's Blessing[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
???
Gaia's Curse[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
???
Gift of the Gods[]
Type: Positive
Minimum turn: 81
Player receives random item.
Good Moon[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
???
Great Infusion[]
Type: Positive
Minimum turn: 31
Duration: 5-15 turns
Somehow improves power of all nodes.
Gremlins at Work[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
Race: May affect every race other than Unhallowed
Affected city receives -5% food production, -5% research, -5% gold, -5% production.
Harvest Moon[]
Type: Positive
Minimum turn: 31
Duration: 5-15 turns
Race: May affect every race other than Unhallowed
Increases population growth by flat +100
Hero's Aid[]
Type: Positive
Fame required: 0-40 depending on a Hero
Opportunity to recruit hero.
Hurricane[]
Type: Negative
Minimum turn: 81
Race: May affect every race other than Unhallowed
Army on the sea/shore tile receives 6d20 damage.
Local Bandits[]
Type: Negative
Minimum turn: 31
Duration: 5-20 turns
Race: May affect every race other than Unhallowed
-10% Food Production and Gold
Lost Settlement[]
Type: Positive
Minimum turn: 71
Duration: 5-20 turns
Race: May affect every race other than Unhallowed
???
Lunar Eclipse[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
+20 unrest in all cities.
Mana Short[]
Type: Negative
Minimum turn: 31
Duration: 5-20 turns
???- I think nodes stop giving you power for the duration.
Mineral Discovery[]
Type: Positive
Minimum turn: 31
Mineral resource appears near affected city.
Nature's Rebellion[]
Type: Negative
Minimum turn: 121
Spawns hostile army near affected city.
Nature's Resurgence[]
Type: Negative
Minimum turn: 31
Purifies 2-5 tiles close to affected city.
Plague[]
Type: Negative
Minimum turn: 81
10%-25% of population in affected city dies.
Planar Conjunction[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
Temporary one way portal to other plane appears. You need to defeat its guardians to pass.
Political Marriage[]
Type: Positive
Minimum turn: 81
Neutral city joins your empire.
Riots[]
Type: Negative
Minimum turn: 41
Affects a city that has unrest different than 0. Rioters destroy building.
Silver Moon[]
Type: Positive
Minimum turn: 31
Duration: 5-20 turns
Race: May affect every race other than Unhallowed
All cities receive +25% bonus to gold production.
Solar Eclipse[]
Type: Negative
Minimum turn: 31
Duration: 5-25 turns
+50 unrest in all cities.
Solstice Celebration[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
-50 unrest in all cities.
Tsunami[]
Type: Negative
Minimum turn: 81
Part of population in affected coastal city dies (10-30% probably).
Destroys 1-2 buildings.
All units in affected city receive 6d6 bludgeoning damage.
Trade Winds[]
Type: Positive
Minimum turn: 31
Duration: 5-25 turns
Targets all players. Effect currently unknown.
Travelling Fair[]
Type: Positive
Minimum turn: 31
Duration: 3-5 turns
Race: May affect every race other than Unhallowed
Affected city receives +25% to gold production and +25% production.
Volcanic Eruption[]
Type: Negative
Minimum turn: 31
Tile turned into Volcano.
Wandering Bard[]
Type: Positive
One time +5-+10 boost to your fame.