Only available for owners of World War One original, therefore World War One original is needed to play this upgrade kit

World War One – Gold is the latest edition of World War One, providing an improved and engrossing experience that covers all of the Great War, from 1914 to 1918.

New Gold Features:

• A new north-south-oriented map with a more vibrant look, including new graphic elements for submarine warfare
• Battle Logs to read up on battles and an Army Roster to find out force composition
• Stack, Army, and Fleet management window
• New 1915 scenario that includes all theaters
• War Plan and Diplomat management window now allows for administration of all leader powers in a single place

Gold Edition Improvements:

• Most event popups can now be browsed more easily, with the ability to quickly center the map on related areas
• WW1 Configuration Tool allows selection of either the new Gold map or old map mode
• Map interface has been improved in key areas to allow for quick access to important information
• Many AI improvements have been introduced, making the game much more challenging 
• Includes all player-created fixes since 2008, improving gameplay and experience; also, all previous changes since launch are included in both versions

Key Features:

• Played in alternating phases of issuing orders followed by simultaneous execution, with an original three-mode turn-base resolution
• A large selection of Scenarios (10) and Campaigns (5)
• Eight playable major nations; dozens of different troops, planes, and ships; hundreds of military, economic, political, and technological events. Over 200 historical leaders with unique abilities- An original diplomatic system featuring ambassadors to send all over the world to alter the balance of power between the Entente (i.e. Allies) and the Central Powers- Organize armies, manage supply, produce munitions, recruits, and new weapons. Use sea and rail moves, and put the best leaders in command, if politics allow. Sustain your nation’s will to fight! 
• Break the trench warfare deadlock by pursuing technological research or fighting the economic blockade
• Play secret stratagems to influence the course of events with famous characters like Lawrence of Arabia, Mata Hari, Lenin, or the Red Baron 
• Multiple paths to victory: it can be military or political, as national will, population morale and parliament all play a crucial role
• Playable via LAN or over the Internet in multiplayer mode for up to 4 players