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They Are Billions Guide by

They Are Billions Guide

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Difficulty Level | They Are Billions Game guide They Are Billions guide, walkthrough

Last update: 27 June 2019

Before you start the game, you can select your difficulty level - Difficulty Level | They Are Billions Game guide - Beginners Guide - They Are Billions Guide

Before you start the game, you can select your difficulty level. This is determined by the Score Factor and is expressed in a percent value. The higher the factor, the more difficult the game is. This, on the other hand depends on parameters you select, such as the type of the map, the duration of the match, density of zombies (number of the infected on the map). Match duration translates directly into how early waves of zombies start incoming. As of now, there are 5 durations, 4 maps and 5 types of density available. To unlock the second, third and fourth map, you have to beat the first map with score not lower than 20%, the second one with score of at least 60%, and the third one with score of 100%.


80 days

100 days

120 days

150 days

Wave 1

Day 11

Day 14

Day 16

Day 20

Wave 2

Day 19

Day 23

Day 27

Day 35

Wave 3

Day 28

Day 33

Day 40

Day 50

Wave 4

Day 35

Day 43

Day 53

Day 65

Wave 5

Day 40

Day 51

Day 61

Day 75

Wave 6

Day 46

Day 59

Day 69

Day 85

Wave 7

Day 52

Day 64

Day 78

Day 96

Wave 8

Day 58

Day 71

Day 85

Day 108

Wave 9

Day 65

Day 78

Day 95

Day 117

Wave 10

Day 73

Day 91

Day 110

Day 138

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