Nuclear Insanity? Okay, so the name doesn't really give any hints as to what this game is.
How about a hint:
That's RIGHT!!! IT'S TETRIS!!!!!!!!!! You know, that computer drug that has thousands of users hopelessly addicted! So, join in and download your very own copy. Just look for the link near the bottom of the page. Come on, you know you want to:

Now here's the best part!!! Nuclear Insanity has a great Annihilation mode. Head to Head tetris with some interesting twists. Can you survive the really small and ultimately evil dotter? Or overcome the horrors and messiness of the Randomizer? Find out just how cruel your friends can be!

So here it is! Version 1.0 of Nuclear Insanity. Just click in the screen shown to the left, or the white 'Download' below to download. (Remember to save the file!) The file is 559,758 bytes (about 547kb) and takes 3 to 4 minutes to download 14.4kpbs. All it requires is a 386 with 640K RAM. If you have a SoundBlaster, you should have 1MB of memory, just in case! You will also need some sort of unzip program. PKUNZIP or WinZIP will work fine. ENJOY!! Download! Download Nuclear Insanity!