**Speed** is a game setting in *Civilization IV* that modifies the general costs and "scales" of all actions in the game, including the number of turns. It is represented as "Game Speed" on the Game Setup menu.

Generally speaking Quick games have all their turn costs and research times 66% of their normal value (everything is a third faster), normal games have 100% of their normal value, Epic games have everything at 150% their normal value (takes one and a half as long) and Marathon games are 300% their normal value (it takes 3 times as long). There are some minor exceptions. In practice slower game modes mean: cities grow much more slowly, build times are much slower, and Workers will take much longer to build tile improvements, but units retain their normal movement speed.

## Contents

## Total Game Turns[]

Note: In Vanilla, there are less turns because the game cannot support a turn interval of less than a year. It was fixed in the Beyond the Sword expansion.

- Quick: 330 turns (320 in Vanilla)
- Normal: 500 turns (460 in Vanilla)
- Epic: 750 turns (660 in Vanilla)
- Marathon: 1500 turns (1200 in Vanilla)

### Turns and year[]

The year progresses in 6 to 8 iterations. When starting in the Ancient Era the game starts in 4000 BC and ends in 2050 AD. Below is a table showing the iterations of year progression at different game speeds.

#### in Vanilla and Warlords[]

Iteration | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
---|---|---|---|---|---|---|---|---|---|

Quick
speed |
Years per turn | 60 | 35 | 30 | 15 | 10 | 5 | 2 | 1 |

Turns | 50 | 30 | 30 | 25 | 30 | 55 | 50 | 50 | |

Years span | 3000 | 1050 | 900 | 375 | 300 | 275 | 100 | 50 | |

Start year | 4000 BC | 1000 BC | 50 AD | 950 AD | 1325 AD | 1625 AD | 1900 AD | 2000 AD | |

End year | 1000 BC | 50 AD | 950 AD | 1325 AD | 1625 AD | 1900 AD | 2000 AD | 2050 AD | |

Normal
speed |
Years per turn | 40 | 25 | 20 | 10 | 5 | 2 | 1 | |

Turns | 75 | 60 | 25 | 50 | 60 | 60 | 130 | ||

Years span | 3000 | 1500 | 500 | 500 | 300 | 120 | 130 | ||

Start year | 4000 BC | 1000 BC | 500 AD | 1000 AD | 1500 AD | 1800 AD | 1920 AD | ||

End year | 1000 BC | 500 AD | 1000 AD | 1500 AD | 1800 AD | 1920 AD | 2050 AD | ||

Epic
speed |
Years per turn | 30 | 15 | 6 | 3 | 2 | 1 | ||

Turns | 100 | 140 | 70 | 70 | 40 | 240 | |||

Years span | 3000 | 2100 | 420 | 210 | 80 | 240 | |||

Start year | 4000 BC | 1000 BC | 1100 AD | 1520 AD | 1730 AD | 1810 AD | |||

End year | 1000 BC | 1100 AD | 1520 AD | 1730 AD | 1810 AD | 2050 AD | |||

Marathon
speed |
Years per turn | 15 | 10 | 8 | 5 | 2 | 1 | ||

Turns | 200 | 150 | 40 | 90 | 60 | 660 | |||

Years span | 3000 | 1500 | 320 | 450 | 120 | 660 | |||

Start year | 4000 BC | 1000 BC | 500 AD | 820 AD | 1270 AD | 1390 AD | |||

End year | 1000 BC | 500 AD | 820 AD | 1270 AD | 1390 AD | 2050 AD |

#### in Beyond the Sword[]

Iteration | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
---|---|---|---|---|---|---|---|---|---|

Quick
speed |
Years per turn | 60 | 40 | 30 | 20 | 10 | 5 | 2 | 1 |

Turns | 50 | 30 | 20 | 30 | 25 | 40 | 65 | 70 | |

Years span | 3000 | 1200 | 600 | 600 | 250 | 200 | 130 | 70 | |

Start year | 4000 BC | 1000 BC | 200 AD | 800 AD | 1400 AD | 1650 AD | 1850 AD | 1980 AD | |

End year | 1000 BC | 200 AD | 800 AD | 1400 AD | 1650 AD | 1850 AD | 1980 AD | 2050 AD | |

Normal
speed |
Years per turn | 40 | 25 | 20 | 10 | 5 | 2 | 1 | 1/2 |

Turns | 75 | 60 | 25 | 50 | 60 | 50 | 120 | 60 | |

Years span | 3000 | 1500 | 500 | 500 | 300 | 100 | 120 | 30 | |

Start year | 4000 BC | 1000 BC | 500 AD | 1000 AD | 1500 AD | 1800 AD | 1900 AD | 2020 AD | |

End year | 1000 BC | 500 AD | 1000 AD | 1500 AD | 1800 AD | 1900 AD | 2020 AD | 2050 AD | |

Epic
speed |
Years per turn | 25 | 15 | 10 | 5 | 2 | 1 | 1/2 | |

Turns | 140 | 90 | 40 | 90 | 70 | 100 | 220 | ||

Years span | 3500 | 1350 | 400 | 450 | 140 | 100 | 110 | ||

Start year | 4000 BC | 500 BC | 850 AD | 1250 AD | 1700 AD | 1840 AD | 1940 AD | ||

End year | 500 BC | 850 AD | 1250 AD | 1700 AD | 1840 AD | 1940 AD | 2050 AD | ||

Marathon
speed |
Years per turn | 15 | 10 | 5 | 2 | 1 | 1/2 | 1/4 | 1/12 |

Turns | 100 | 300 | 170 | 201 | 129 | 180 | 264 | 156 | |

Years span | 1500 | 3000 | 850 | 402 | 129 | 90 | 66 | 13 | |

Start year | 4000 BC | 2500 BC | 500 AD | 1350 AD | 1752 AD | 1881 AD | 1971 AD | 2037 AD | |

End year | 2500 BC | 500 AD | 1350 AD | 1752 AD | 1881 AD | 1971 AD | 2037 AD | 2050 AD |

## Building Costs[]

- Quick: 67% normal hammer costs
- Normal: 100% normal hammer costs
- Epic: 150% normal hammer costs
- Marathon: 300% normal hammer costs

## Tech Costs[]

- Quick: 67% normal tech cost
- Normal: 100% normal tech cost
- Epic: 150% normal tech cost
- Marathon: 300% normal tech cost

## Unit Costs[]

- Quick: 67% normal hammer costs
- Normal: 100% normal hammer costs
- Epic: 150% normal hammer costs
- Marathon: 240% normal hammer costs

## Culture Requirements[]

- Quick: 50% Culture requirements
- Normal: 100% Culture requirements
- Epic: 150% Culture requirements
- Marathon: 300% Culture requirements

## Wood Chops and Whips[]

All chops and whips are multiplied in line with the factors above. A woodchop will provide 3x as much wood on Marathon as it does normally.