Sid Meier’s Civilization VI – The Civ6 Exploit that Hasn’t Been Patched for Over a Year, or How to Win the Black Death Scenario on Deity in 30 Turns

Guide for Sid Meier’s Civilization VI – The Civ6 Exploit that Hasn’t Been Patched for Over a Year, or How to Win the Black Death Scenario on Deity in 30 Turns

Introduction

The Civ6 Exploit that Hasn’t Been Patched for Over a Year, or How to Win the Black Death Scenario on Deity in 30 Turns: 
 
Want to Cheat (the Black) Death? Are you having trouble getting the Danse Macabre achievement? Worry no longer! 
 
I found this exploit when the Black Death scenario first came out, and I’m frankly surprised that it would seem no one online, nor the dev team, has noticed that there is an awful exploit that practically guarantees a victory for what is likely one of the most difficult challenges in the entire game. Here is the explanation: 
 
To win the Black Death scenario, you must unlock either the last tech on the tech tree or the last civic on the civic tree. This means our goal must be to get as much science or culture as possible. 
 
The scenario, especially on Deity, can be ridiculously difficult because you will have to suffer a slew of debuffs, negative yields, and your cities having their production murdered or simply rebelling. The current meta is to bypa*s being dependent on city yields by pillaging enemy campuses for science. 
 
If only there were a way to generate infinite science or culture… 
 

The Exploit

Enter the Flagellant, a scenario-exclusive unit that produces 10 culture every time you use the "Purge Sins" ability on a plague-stricken city. Now it may appear immediately obvious that 10 culture is a measly amount, and that one would never be able to produce enough of these units for the culture to be useful, since using this ability consumes the unit. BUT: 
 
The third civic in the civic tree, Labor Economy, allows you to unlock a government policy card, Public Servants, that reduces the costs of all gold purchases by 50% 
 
Although it does not say so on the card, Public Servants also reduces faith purchases by 50%. 
 
The Flagellant may be faith-purchased for 70 faith instead of being trained via production, or 35 faith with Public Servants. 
 
"Purge Sins", in addition to producing 10 culture, instantly yields 50 faith. 
 
Usually, when you faith/gold purchase a unit, it spawns with 0 movement points and you must wait until the next turn to use it. 
 
If you are playing as Castile, you have a special ability where you can spend 10 faith to restore a unit’s movement points, meaning that you can use a faith purchased unit the same turn you purchase it. 
 
Combine all of this together, and so long as you have 35 faith by the time you (beeline) research Labor Economy (about 30 turns) you can train an infinite number of flagellants and produce an infinite amount of faith and culture without even needing to press "next turn". 
 

The Method

Here is an explanation of how best to go about doing this right (on Deity difficulty). 
 
Given that we will automatically win the game once we achieve that policy card and purchase a flagellant, this means we only have two goals: 
 
1. Research Labor Economy as quickly as possible 
2. Have 35 faith by the time it is researched 
 
or in other words, we must produce as much culture and faith as possible. I would also advise placing an interest on keeping up your gold per turn, as gold purchases may help you get enough faith in time. 
 
Begin the game (as Castile of course) building holy sites and theater squares in all of your cities. After researching the first tech, research Castles. What you do with your builders is somewhat arbitrary, so just improve whatever you see fit. Send your swordsmen to neighboring free cities and try to pillage their stuff for some bonus yields. Your swordsmen will most likely die, but that’s ok. 
 
After building holy sites and theater squares, you will likely have a few awkward turns before you have unlocked flagellants. You can spend these turns constructing shrines for extra faith, or entertainment centers to boost your theater square’s adjacency bonuses. Build walled quarters as well, once Castles is researched. 
 
Whenever you receive a random event and must make a choice, remember your priorities are, in this order, Faith, Culture, Gold. Choose whichever option that does that best. Science can be ignored entirely. One event that fires commonly will give you a government policy card, Pogrom, that generates lots of culture and gold for your cities. 
 
Speaking of gold, the best way to get some is to build a caravel. You can use the policy card that reduces military production cost to pump one out. Use it to pillage the harbors in Portugal and Aragon; they will produce more than enough gold for your purposes. 
 
As soon as you unlock Flagellants, it is imperative to begin training them WITH PRODUCTION in two or three of your cities that are the most far away from the plague. You will likely still have negative faith by the time you unlock Labor Economy and will not be able to faith-buy a flagellant by then. Consider using your plundered gold to buy shrines in your cities not yet hurt by the plague to boost your numbers. 
 
Side note: sometimes, you may be hit with a random event that will cripple you horribly. It may be best just to restart and try again. 
 
If you have played your cards right, you will have unlocked Labor Economy by about turn 30, and if you do not have 35 faith, you at least have enough flagellants trained to get 35 faith (remember, they produce 50.) Wait until you have unlocked Labor Economy before using any of your flagellants to Purge Sins, as you may have a negative faith per turn and suffer a loss. 
 
Slap Public Servants into your government as soon as possible, and faith purchase a flagellant in any of your cities that are plague-stricken. Use the Holy Fervor ability to wake it up, Purge Sins, buy another flagellant, and rinse and repeat. 
 
Congratulations! 
 

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