Great Buildings are special buildings inspired by world history which can be built to provide powerful benefits to the player. Each Age offers two Great Buildings (with No Age, Arctic Future and Oceanic Future ages having three Great Buildings each and Space Age Asteroid Belt having one Great Building), each one with its own unique bonus, graphic and space required to build.
Unlike conventional buildings which require only coins / supplies, Great Buildings have requirements of goods and a full set of blueprints which must be collected before the Great Building can be constructed. Once the Great Building's requirements have been met and the foundation laid, it will be at level 0 and must be "levelled" to level 1 before granting benefits to the player.
For Great Buildings to gain levels, Forge Points must be placed into them. For each level gained, the inherent bonus of that Great Building increases, as well as the rewards paid to the top 5 donors. At level 10, the Great Building will no longer be able to advance until a full set of blueprints are "spent" to unlock the next level. Once this is done, a single additional level will be unlocked. A full set of blueprints is required for each level after level 10.
Buildings
| No Age | Observatory Guild Goods GvG Support Pool |
Oracle of Delphi Supplies Happiness |
Temple of Relics Relic Hunt |
Galata Tower Goods Plunder Repel |
| Bronze Age | Tower of Babel Goods Population |
Statue of Zeus Military Boost |
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| Iron Age | Colosseum Medals Happiness |
Lighthouse of Alexandria Goods Supply Boost |
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| Early Middle Ages | Cathedral of Aachen Coins Military Boost |
Hagia Sophia Forge Points Happiness |
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| High Middle Ages | St. Mark's Basilica Goods Coin Boost |
Notre Dame Supplies Happiness |
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| Late Middle Ages | Saint Basil's Cathedral Coins Fierce Resistance GvG Support Pool |
Castel del Monte Forge Points Military Boost |
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| Colonial Age | Deal Castle Medals Fierce Resistance GvG Support Pool |
Frauenkirche of Dresden Goods Happiness |
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| Industrial Age | Capitol Supplies Population |
Royal Albert Hall Goods Supply Boost |
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| Progressive Era | Château Frontenac Coins Quest Reward Boost |
Alcatraz Military Unit Happiness |
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| Modern Era | Space Needle Coins Happiness |
Atomium Guild Goods Happiness |
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| Postmodern Era | Cape Canaveral Forge Points |
The Habitat Coins Population |
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| Contemporary Era | Innovation Tower Forge Points Population |
Lotus Temple Coins Happiness |
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| Tomorrow Era | Voyager V1 Supplies Plunder Goods |
Truce Tower Supplies Aid Goods |
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| Future Era | Rain Forest Project Goods Blueprint Boost |
The Arc Guild Goods Contribution Rewards |
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| Arctic Future | Gaea Statue Medals Happiness |
Arctic Orangery Forge Points Critical Hit |
Seed Vault Helping Hands Supplies |
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| Oceanic Future | Atlantis Museum Goods Chance of Double Plunder |
The Kraken Forge Points Chance of First Strike |
The Blue Galaxy Medals Chance of Double Collection |
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| Virtual Future | Terracotta Army Advanced Tactics |
Himeji Castle Supplies Spoils of War |
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| Space Age Mars | The Virgo Project Coins Missile Launch |
Star Gazer Goods (Previous Age) |
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| Space Age Asteroid Belt | Space Carrier Special Goods Diplomatic Gifts |
Blueprints
All Blueprints can be viewed in the inventory menu which is located at the bottom left orange "inventory" icon of the screen. This is also where you can build the Great Buildings.
You can acquire the 9 blueprints in the following ways:
- Aiding other players by polishing and motivating.
- Plundering buildings after attacking another player. This has a lower blueprint rate than motivating / polishing.
- Receiving rewards from certain quests, Guild Expeditions, Daily Challenges and Incidents.
- Helping in construction of a Great Building of another player by donating Forge Points. The blueprints will be received when the building levels, if you finish in reward position. See here.
- Trading in 2 duplicate copies of blueprints you already possess. The new one will not be either of the traded copies, but may be a different duplicate.
- Purchasing any specific blueprint with diamonds in the construction screen assuming you already have at least 1 blueprint for that Great Building.
- Building the Rain Forest Project increases the chance of getting a blueprint by polishing / motivating.
- Buying them from the Antiques Dealer
- Certain Special Buildings, like the Shrine of Inspiration and the Altar of Hestia provides a random blueprint upon collection.
- Winning them in events.
Note: The Great Building blueprint that is received from a building that was recently polished, motivated or plundered will be from the same age as that building.
Construction
To place the Great Building, you will first have to acquire the 9 separate blueprints and also the required goods of the building's age. However, the placed Great Building is level 0 and it does not give any bonus yet. See the next section. A Great Building must be connected by roads to provide benefits or to allow Forge Point contributions.
Upgrade
The Great Building at level 0 is just a construction site and it won't build itself like other buildings. Players must use Forge Points to upgrade it. Once the building reaches level 1, it is built and starts to give out bonuses, but still can be upgraded with increasing bonuses to a maximum of level 10. In Patch 1.29 (7 July 2014), the maximum level of Great Buildings has been removed. Now players can trade in a complete blueprint set to unlock levels after 10. Forge Points must be added to achieve each of these new levels.
Details of the cost of Forge Points on levels can be found on the page of each building.
Bonuses
The most important function of Great Buildings is the powerful bonuses that increase with the building's level. Depending on the building, you will get the following:
Advanced Tactics 
Attack and defense bonus for units in both attacking and defending armies.
Aid Goods 
Provides one good of the same age as the building (of a neighbor / friend / guildmate) that you aid, for the first number of buildings aided.
Blueprint Boost 
Gives an increased chance of gaining blueprints while aiding.
Coin Boost 
Raises the coin production of your houses for the first number of collections per day, adds up with productivity and motivation.
Coins
An amount of coins every 24 hours.
Contribution Rewards 
Provides an increase of contribution rewards when donating to other players’ Great Buildings. Contribution rewards consist of Forge Points, blueprints and/or medals.
Critical Hit 
When a unit attacks another unit from the same age, it has a chance of dealing 1.5 times the expected damage.
Diplomatic Gifts 
Chance to receive a random reward after sucesfully completing a negotiation.
Double Collection 
Chance to double collect the first number of buildings collected.
Double Plunder 
Chance to double the resources plundered after successfully defeating a neighbor’s defense.
Fierce Resistance 
Attack and defense bonus for units in defending army, adds up with every Great Building that has the same bonus.
First Strike 
Chance to kill one enemy unit at the start of battles (for two-wave battles, the chance applies only to the first wave).
Forge Points 
An amount of Forge Points every 24 hours.
Guild Goods 
Provides goods of the player’s age for their Guild Treasury every 24 hours.
Goods 
An amount of goods from your current age every 24 hours, from Modern Era on will produce double the amount of unrefined goods.
GvG Support Pool 
Provides the player’s guild with a support boost for Guild vs. Guild (GvG).
Happiness 
Permanent happiness bonus.
Helping Hands 
Chance of getting something extra when aiding other players, rewards consist of coins, supplies, medals, goods or diamonds.
Medals 
An amount of medals every 24 hours.
Military Boost 
Attack and defense bonus for units in attacking army, adds up with every Great Building that has the same bonus.
Military Unit 
Gives you a number of unattached military units every 24 hours from the military buildings existing in your city (whether or not they are finished construction or connected).
Missile Launch 
For the first number of battles, there is a chance of killing half the enemy units at the start of the battle, for two-wave battles, the skill applies only to the first wave.
Plunder Goods 
Provides one good of the same age as the building that you plunder, for the first number of buildings plundered.
Population 
Permanent population bonus.
Previous Era Goods Production Template:PEGP
Provides an amount of goods from the player's previous era every 24 hours.
Quest Reward Boost 
Gives you a boost on most quest rewards. This boost doesn't apply on rewards consisting of Forge Points, blueprints, or military units.
Relic Hunt 
Allows the possibility of finding a Relic upon completing a Guild Expedition challenge.
Special Goods 
Provides an amount of special goods from the players current or previous eras or medals (before reaching Arctic Future).
Spoils of War 
Chance of getting random reward when winning battles (list of possible rewards detailed on the building's page).
Supplies 
Provides an amount of supplies every 24 hours.
Supply Boost
Boosts the supply production of your production buildings for the first number of collections per day, adds up with productivity bonus and motivation.
Details of the bonuses of each Great Building can be found in the topic of each building.
Donation
Players who have Great Buildings have a "castle" icon on the social menu
To help construct a Great Building, simply visit a city of one of your friends, neighbors or guild-mates in which a Great Building construction is present, and click on the Great Building. You may now donate Forge Points, and also view which reward you will receive (if any) for your current donations. You may only contribute to another player's Great Building(s) after you have researched Architecture in the Iron Age. However, keep in mind that if you level up another person's Great Building, it might cause them to lose their daily collection (if the building provides any). Good donation etiquette mandates that the last few forge points must be left for the owner to put.
When the current construction level is completed, the top four or five most generous donors (not counting the building's owner) will receive rewards:
- Medals (based on level and age of the Great Building)
- Forge Point packages (based on level)
- Blueprints (as outlined below):
| GB Lvl | Blueprints for being ranked | ||||
|---|---|---|---|---|---|
| 1st | 2nd | 3rd | 4th | 5th | |
| 0→1 | - | - | - | - | - |
| 1→2 | 1 | - | - | - | - |
| 2→3 | 1 | 1 | 1 | - | - |
| 3→4 | 1 | 1 | 1 | 1 | 1 |
| 4→5 | 1 | 1 | 1 | 1 | 1 |
| 5→6 | 2 | 1 | 1 | 1 | 1 |
| 6→7 | 2 | 2 | 1 | 1 | 1 |
| 7→8 | 3 | 2 | 1 | 1 | 1 |
| 8→9 | 3 | 2 | 2 | 1 | 1 |
| 9→10 | 3 | 2 | 2 | 2 | 1 |
| 10→11 | 3 | 2 | 2 | 2 | 1 |
| 11→12 | 4 | 3 | 2 | 2 | 1 |
| 12→13 | 4 | 3 | 2 | 2 | 1 |
| 13→14 | 4 | 3 | 2 | 2 | 2 |
| 14→15 | 4 | 3 | 2 | 2 | 2 |
| 15→16 | 5 | 3 | 3 | 2 | 2 |
| 16→17 | 5 | 3 | 3 | 2 | 2 |
| 17→18 | 5 | 4 | 3 | 2 | 2 |
| 18→19 | 5 | 4 | 3 | 2 | 2 |
| 19→20 | 5 | 4 | 3 | 2 | 2 |
| 20→21 | 6 | 4 | 3 | 3 | 2 |
| 21→22 | 6 | 4 | 3 | 3 | 2 |
| 22→23 | 6 | 4 | 3 | 3 | 2 |
| 23→24 | 6 | 4 | 3 | 3 | 2 |
| 24→25 | 6 | 5 | 4 | 3 | 2 |
| 25→26 | 7 | 5 | 4 | 3 | 3 |
Deleting
As Great Buildings cannot be stored, the only way to remove them from the city grid is to delete/sell them. The Player will not receive any compensation for deleting the Great Building - neither goods nor blueprints nor invested forge points nor diamonds will be paid back. Also, all current contributions to an unfinished level will be lost for the respective contributors. When you want to build the GB again in the future, you will start from Level 0 and you will need a full set of BP again.
When selecting a Great Building for deletion, the player will be prompted with a dialogue in which he has to confirm his wish to sell the Great Building by moving a slider all the way from the right to the left.
See also
- Buying Great Building goods kits
- Château Frontenac as Perpetual Motion Machine (guide)
- Leveling Great Buildings
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