Flood (Civ6)

A flood is a natural disaster in Civilization VI: Gathering Storm. There are two types of floods, described below.
== River floods ==
These are normal disasters which happen along Rivers with Floodplains, which includes Rivers on all terrain types except Tundra. The level of the water rises, flooding all Floodplains tiles found along the River, and then recedes on the next turn.
* Effects:
** Damages or destroys s, improvements, and units on the Floodplains tiles near the River. This may also include a City Center, in which case it loses some HP and Defenses (if it has them).
** May kill some Citizens in a nearby city.
** Can fertilize affected tiles, adding and/or potential.
** Building a Dam or the Great Bath along a River will mitigate floods there. Fertilization rates will drop about 50%, but there will be no destruction anymore.
River floods have three levels of severity, starting with Moderate and ending with 1000 Year Flood. The Disaster Intensity setting of the game controls what levels of flooding will occur more often, but climate change can also contribute to their severity.
The Egyptians' civilization ability allows them to receive full fertility from Floods yet suffer no damage from them.
Floods can be summoned by a Soothsayer standing on a Floodplains tile in the Apocalypse game mode. 
=== Flood effects ===
The table below lists the percentage chance of all effects happening at each different severity level.
Severity 	Damages 	Damages 	Damages 	Damages 	Damages 	Damages 	Damages
Severity 	Improvement 	District	Building	Population	Civilians killed	Units 	Garrison
Moderate 	Pillaged: 100%	0 	100% 	0 	0 	0 	0
Major 	Pillaged: 100%;
Destroyed: 50%	50% 	100% 	15% 	15% 	30-50 HP	30-50 HP
1000 Year	Pillaged: 100%;
Destroyed: 80%	80% 	100% 	25% 	25% 	50-70 HP	50-70 HP
It is interesting to note that floods fertilize each type of Floodplains differently; the exact percentages are listed in the table below. Each expresses the chance of a tile to gain +1 of the given yield, and note that a single tile may gain both yields from the same flood!
Severity 	Yield type	Plains Floodplains	Grassland Floodplains	Desert Floodplains
Moderate 	 	30 	15 	25
Major 	 	45 	25 	30
Major 	 	10 	30 	15
1000 Year	 	60 	40 	45
1000 Year	 	15 	40 	25
Since the Antarctic Late Summer Update Floods will lose their fertilization effects after Climate Change Phase IV. They won't start removing yields gained, though.
== Coastal floods ==
The second type of floods happen on coastal lowland tiles, and are a direct result of melting ice caps (which in turn is a result of climate change). Coastal flooding will start occurring as climate change progresses to certain phases, and will first affect the 1-meter tiles (that is, the lowest-lying flatlands), then the 2-meter tiles, and finally the 3-meter ones.
* Effects:
** Damages s, improvements, and units in the affected tiles.
** Flood waters will make the tiles unusable (i.e., impossible for Citizens to work) until a Flood Barrier has been constructed in the city that owns them.
As climate change progresses further, coastal lowland will become Submerged. Submerged tiles are irrecoverable and become permanent Coast tiles; all districts there are lost. The tiles, however, may be worked as normal Coast tiles; they may also receive any applicable improvements (such as an Offshore Wind Farm).
== In-game disaster descriptions ==
Type 	Severity 	Description
Flood	Moderate 	Rising waters overflow the banks of the river and spill into the land beyond.
Flood	Major 	Surging, murky water rushes over the land around the river during an intense flood.
Flood	1000 Year	The river bursts its banks, and rising water covers the land for miles around. Not for a thousand years has the river flooded to such an extent!
== Gallery ==
File:Moderate flood (Civ6).png|Moderate Flood
File:Major flood (Civ6).png|Major Flood
File:1000 Year Flood (Civ6).png|1000 Year Flood
== Related achievements ==
== See also ==
* Flood in other games
Category:Disasters (Civ6)