Microsoft have announced the release of an Age of Empires II HD Edition. Re-imagined by Hidden Path Entertainment, this release is limited to Steam users. It becomes available for all non-pre-purchasers on 9 April, 2013 and costs $19.99 USD.
The (partial) remake features graphical enhancements, widescreen support, Steam Workshop integration, Achievements, more multiplayer options and netcode improvements.
A Comparison (From PC Gamer)
Minimum System Requirements:
Windows XP, Vista, 7, 8 Pro Steam 900x600 minimum display resolution Direct X 9.0c+ GPU 1.2GHz CPU 1GB RAM 2GB HDD
The Steam store page:
Details, FAQs and developer diaries: