http://ageofempiresonline.com/en/articles/blog-20130308Un resumen general.
Returning existing beloved features:9 Single Player Campaigns
18 Civilizations from the original Age of Empires II and the Age of Empires II: The Conquerors expansion
Available Language Localizations:
Game Audio & Text Localizations available for the following languages: French, Italian, German, Spanish, Simplified Chinese and Korean.
(Text only localization available in Portuguese (Brazil), Dutch, Russian and Japanese)
New for Age of Empires II: HD Edition:Enhanced Graphics with Classic Feel
1080p+ high resolution support
Updated lighting effects and improved fire & water effects
32bit terrain
Multi-monitor support
Windowed mode
New Steam Features, including:SteamWorks Multiplayer
Up to 8 Players
Quick-match Matchmaking
Game Lobby Browser
Invite your Steam friends to custom games
Leaderboards
Steam Workshop Support (Edit and upload custom game types, scenarios & more!)
Achievements
Community FeaturesIn-game Launcher for news and community updates
Community events, forums and support