Cities and Castles in Heroes 2

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This is one of the main aspects of the game, as it is where you can hire heroes and troops. Castles are like cities, but protected by a fortress wall and a central turret. You cannot build buildings in cities; construction is only possible after creating a Castle. A Castle brings the player 1000 gold per day, while a city brings 250.
All buildings can be divided into 2 groups:

Main Buildings
Buildings for Hiring Troops

Main Buildings:

Magic Guild:
This building allows your heroes to learn magic and buy spellbooks. In a Castle, you can build 5 levels of Magic Guild:
Level 1 - 2000 gold, 5 wood, and 5 stone;
Level 2 - 1000 gold, 5 wood, 5 stone, and 4 of each other resource;
Level 3 - 1000 gold, 5 wood, 5 stone, and 6 of each other resource;
Level 4 - 1000 gold, 5 wood, 5 stone, and 8 of each other resource;
Level 5 - 1000 gold, 5 wood, 5 stone, and 10 of each other resource.

Tavern:
This building increases the morale of the Castle's defenders by 2. Tavern can be built in all Castles except for the Necromancer's Castle. It requires 500 gold and 5 wood to build.

Thieves Guild:
This building provides information about all players. The more Thieves Guilds you have, the more complete the information will be. It requires 750 gold and 5 wood to build.

Shipyard:
This building allows you to build ships. It requires 2000 gold and 20 wood to build.

Statue:
This building gives the player 250 gold per day. It requires 1250 gold and 5 stone to build.

Marketplace:
This building makes it possible to exchange resources; the more Marketplaces you have, the better the deal. It requires 500 gold and 5 wood to build.

Well:
This building increases the weekly growth rate of armies that can be hired by 2. It requires 500 gold to build.

Left Turret:
Left Turret - a left turret for defending the Castle. It requires 1500 gold and 5 stone to build.

Right Turret:
Right Turret - a right turret for defending the Castle. It requires 1500 gold and 5 stone to build.

Moat:
The Moat prevents enemy troops from penetrating the Castle's territory during a siege. It requires 750 gold to build.

Captains Quarters:
Building Captains Quarters in your Castle will give you a captain. It requires 500 gold to build.

Shrine:
Shrine increases the Necromancy skill by 10%. You can only build Shrine in the Necromancer's Castle. It requires 4000 gold, 10 wood, and 10 crystals to build. (Available on extended maps)

Fortifications:
This building strengthens the walls of the Knight's Castle. It requires 1500 gold, 15 wood, and 5 stone to build.

Coliseum:
This building increases the morale of the Barbarian's defenders by 2. It requires 2000 gold, 10 wood, and 10 stone to build.

Rainbow:
This building increases the luck of the Sorceress's defenders by 2. It requires 1500 gold and 10 crystals to build.

Storm:
This building increases the magic power or captain's strength by 2 in the Necromancer's Castle. It requires 1000 gold, 10 mercury, and 10 sulfur to build.

Library:
This building adds one spell of each level to the Wizard's Castle. It requires 1500 gold, 5 wood, 5 stone, 5 mercury, 5 gems, 5 crystals, and 10 sulfur to build.

Dungeon:
This building gives the player 500 gold per day. You can build it in the Warlock's Castle. It requires 3000 gold, 5 wood, and 10 stone to build.

Buildings for Hiring Troops:

For convenience, buildings for hiring troops are divided into 6 groups. Choose the Castle you are interested in: