Civilization 5

Copy and paste from here:
http://forums.civfanatics.com/showthread.php?t=355156

So well then lets step away from speculation and see what has actually been confirmed through the screen shots (Note, I'll only be adding stuff here that has been released and/or confirmed by Firaxis/2K Games/Civfanatics)

Game Content

CIV's/Leaders/Flavours 16 of 18 Civilizations confirmed

America/Washington
Germany/Bismark
Aztec/Montezuma
Japan/Oda Nobunaga
China/Wu Zeitein
Arabia/Harun al-Rashid
Mongolia/Genghis Khan
Rome/Augustus Caesar
France/Napolean
India/Gandhi/City Growth focused
England/Elizabeth/Naval Power focused
Songhai/Askia/Conquest focused
Russia/Katherine/City Expansion focused
Ottomans/Suleiman
Egypt/Ramesses
Greece/Alexander the Great

[Steam Special Addition Bonus]

Babylon/Nebuchadnezzar IINew

There have been three possible candidates for the final two spots the Inca (mentioned in the Swedish PC Gamer through the use of the Quechua Language) and the Siam and the Persian Empires (mentioned in Giochi per il mio Computer through the use of their apparent unique units, Siam Elephant and the Immortals, respectively)

Each leader has a personality made from a combination of several different 'flavours' along a ten point scale, each game the impact that a certain flavour has over this civ can be +/- two points , allowing for a different experience each game. For example Russia may have a score of 8 for their expansion flavour but at the start of the game the actual score could be any where from 6 to 10. (PCZone)

The 25 flavours are grouped into several categories including Wide Strategy, Military preferences, Recon, Naval recon, Naval growth, Expansion, Growth, Development preferences (PCZone)

Wonders

Hagia Sofia of Constantinople/Istanbul
The Pyramids and/or The Sphinx of Giza(Shown in trailer at time code 00:16)
Hanging Gardens of Babylon
The Oracle of Delphi
Shakespeare's Amphitheatre (The Globe Theater) (not known yet if this has been upgraded to a full wonder or is still a national wonder) of London
The Colossus of Rhodes

Buildings

City Walls - Gives Defence bonus, as well as allowing a ranged attack (Shacknews)

Unit Behaviour

Now only one each type of unit (Millitary/Naval/Economic)hex, this includes cities

However, some unit types, like Air & Missile unit will be allowed stack on one tile allowing Aircraft Carriers and Missile Subs. (Strana Igr)

Units move 2 Hexs during combat as a base (GamerPro)

Ranged bombardment

You will be able to swap a unit out with one next to it during battle (IGN)

Units will take longer to produce than previous civilizations and as well as this they will eventually come to have upkeep costs associated with them potentially reducing the number of units you can maintain at one time. (Gamespot)

veterancy from Civ4 will be in Civ5 (Gamespot)

Units are no longer destroyed if they lose a battle
(The Escapist)

Unit Types

Land, Naval, Air & Missile Unit Types have been confirmed

Archers
Warriors/Mace-men
Spear-men
Catapults
Jaguar Warriors
Settlers
Galleys
Great People

There are no longer Troop Transports instead, units instantly transform into makeshift floating transports (PC PowerPlay)

[Steam Special Addition Bonus]

Babylonian BowmenNew

Terrain Types

Grassland/Marsh/Plains/Desert
Snow, Tundra
Mountains/Hills, Hills provide more Defence
Several types of Forest/Jungle representing the four major land masses of Europe, Asia, Africa & America, wounded units can hide and recover in trees/forests.
Coast/Ocean/Lakes/Rivers Rivers affect those attacking across it.

Luxury Resources

One Luxury Resources is enough for your entire Empire (IGN)
Ivory/Elephants
Marble
Dye
Spices possibly shown here
Silk
Gold or other mineral resource

Strategic Resources

One strategic resources will only allow you to build a limited supply of units that require that resource i.e. one Iron will allow about 5 units bases on Iron IGN
Horses
Iron

Other Resources

Cattle
Deer
Wheat or Corn
Cotton

Map Improvements/Features

Farms (can now be built on hills)
Pastures
Roads, now cost maintenance each turn (Strana Igr)
Camps
Forts
City ruins

Research

With a gold down-payment two nations can create a joint research project (Computer Bild Spiele) that gives the players a 15% bonus to research output. (VGChartz)

Technologies


Writing- Unlocks research pacts
Calendar- Needed to see Cotton
Masonry - Allows construction of Walls (Gamereactor) (time index 2:35)

Cities

Cities spread 3 tiles out instead of two
Boarders now only expand at one hex at a time and more difficult terrain will take more time to claim (Swedish PC Gamer). You can use Gold to sped up this process, but that may bring you into conflict with surrounding Civs. GamerNode

Cities now defend themselves with a set of 'Hitpoints' that need to be taken down to zero before a city can be captured. Units can still help defend cities but instead of just garrisoning inside the city as in previous games, they merge with the city and 'boost' the cities hitpoints. GamerNode

Culturally different City designs Arabic/Asian/African/European and American Confirmed
There will be "game-specific disadvantages" in having two cities too close together(Gamespot)
When you occupy a city you can form a Puppet-State, This means that you reap the benefits of its research, culture and gold but don't get a say in what it produces (PC PowerPlay)

City States

Provides diplomatic and economic bonuses if pursued correctly, potentially more than what you could get if you took over the city. (IGN)
Singapore, Rio de Janeiro, Budapest, Florence, Venice, Sidon confirmed.

The cities states will not grow large nor will they compete to win the game like regular civs.(Swedish PC Gamer)

The player must choose if he is to be friendly, indifferent or hostile towards a city state. (Swedish PC Gamer)

City States can have different mentalities, for instance a militaristic bent, and thus give different bonuses if you befriend them, like warriors.(Gamespot)

City States also have their own tech tree's (1Up)

Barbarians

Will have their own Tech Tree's at least up until the 20th Century era(1Up)
Have their own Home City that you must destroy to stop them(1Up)

Victory Types

Conquest - You must conquer a certain amount of your enemies Capital Cities (IGN)

Scenarios

[Steam Pre-Order Bonus]

Cradle of Civilization Map Pack: MesopotamiaNew

Other Information

Trading items and land
New "Civilisation tree" with three different paths that give special bonuses (more concrete information needed) (Computer Bild Spiele)
Barbarians will continue to expand and advance untill all of their cites are destroyed (Swedish PC Gamer)
Civ 5 more moddable than Civ 4 (IGN)
Advisors make their return to Civ 5 (IGN)
Golden Ages are confirmed
Culture still plays a part in the game
There will be Fog of War (Gamereactor) (time index 3:40)
Religion has been altered from its role in Civ 4 however, it is not know in what form it will remain in the game

Changes and/or Omissions from Previous Games

No Technology Trading (Computer Bild Spiele)
Espionage have been removed

Game Design/Construction/Tech Features

Key People in the Civ 5 production

Jon Shafer - Lead design.
Dennis Shirk - Producer.
Dorian Newcomb - Lead artist for Civ 5.
Ed Beach - Lead AI programmer
Chris Hickman - Lead animation.
Dan Baker -Graphics lead

Required Specifications New

The game will have to be verified through Steam on first installation

Interface

Civ 5 Will have a more streamlined interface on the main screen (IGN)
This will be augmented by an in game notification system that directs you to important issues on the map (Gamespot)

AI

AI now works on four levels, Tactical (unit battles), Operational (The entire War Front), Strategic (Manages the entire empire) and the Grand Strategic (how to win the game) (IGN)
Once the Grand Strategic AI determines how they want to win the game, each of the other AI levels work in tandem to reach that end goal. This also allows for the most flexibility when dealing with the changing game.

Multiplayer Information

Multiplayer modes confirmed are hot seat, play-by-email, LAN, and online multiplayer (Tomshardware)

Internal Architecture

Civ 5 Contains a new graphic processing system new built from scratch for the game. (Tomshardware)

The new graphics engine spawns numerous small jobs, which make more efficient use of multi-core CPUs as well as implementing a new message-passing architecture, in which the main game engine communicates with the graphics subsystem through messages. (Tomshardware)

The game has been optimized for DirectX 11, benefiting players even if they do not have DirectX 11 capable hardware. (Tomshardware)

Memory allocation has been completely discarded in Civ 5. (Tomshardware)

For the first time in the series the game is being developed for dual core processors, with support for up too 8 threads. Big Download


Sources

Firaxis
Computer Bild Spiele translated Here by Civinator
Swedish PC Gamer translated Here by Danielos
Gamepro Compiled Here by Dc82
PC Jeux translated Here by Sindhforces
IGN Preview posted Here by aftrubeliever85
IGN Preview 2 posted Here by mrbee
Gamespot Preview posted Here by V.Soma
1up Preview posted Here by V.Soma
Shacknews Preview Posted here by Thunderfall
The Escapist Preview posted Here by Karramba
Gamereactor Preview Video posted here by Thunderfall
PC Gamer Blog Preview posted Here by Ddude97
Tomshardware posted Here by Magic Cat
PCZone preview posted here by V.Soma
VGCharts Preview posted Here by Camikaze
PC PowerPlay Preview posted here by Dale
Big Download Preview posted Here by V.Soma
GameNode Preview posted Here by V.Soma
GameShark Preview posted Here by NeverMind
Strana Igr interview posted here by Nevermind
Steam Announcement posted Here by V.Soma

as well as individual Screenshots that are linked accordingly

if I have missed anything, or if new information is released please feel free to post it and I will update the list.

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