Fallout 3
Okay, so it doesn't qualify as "old school" but there's no denying Fallout 3 is an instant classic. Once it pulls you in, forget it. You'll swear you've lived through a nuclear holocaust.
March 5, 2010
Temporarily sidetracked with a different Silverlight project but it's all goodness. It'll be featured on this site within a few days, then attention shifts back to RAGE.
A* Pathfinding
Ever wonder how enemies semi-intelligently track you in some games? Check out this outstanding article by Patrick Lester.
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Buddy Knavery 3
Steel Saga: The Training Grounds 6
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WPF and Silverlight 4
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Old-School Games and Nostalgia 2