Hey, it's Missile Command. I never made the game portion of this, but the basic mechanics of intercepting missiles and the buildings being destroyed are there. The procedural buildings are pretty cool looking.
"strangely, many of them run slower on a 3+ GHz computer with Windows 10 than they did on a Pentium-200 with Windows 95. Thanks Microsoft."
I've noticed some games that ran on xp/vista/7 smoothly - but when ran on windows 8/10 you get mass FPS drops - one game that comes to mind is Hard Time