So, my grandfather passed away some time ago. Recently, I found his collection of old game-filled floppy disks and CDs. For most of these, the company that made them is now defunct, the original copyright owner can't be found, or the copyright is otherwise hard to place and track down. Therefore, I'm making a bunch of them available to you for a fee! Here's how it works. You contact me with the name of the game you want, and I give you an address. Then, you send the requested amount to me, and I give you the random (banging on the keyboard-generated) password. You can then download the game, I'll change the password, and wait for another satisfied customer.
Jones in the Fast Lane: A unique and awesome combination of Life and Monopoly. http://ul.to/1j2jcgup
Doom: You know what DOOM is. http://ul.to/2otyhgmg
Marble Drop: A puzzle game that requires you to think two steps ahead and get marbles through increasingly complicated contraptions. http://ul.to/eq8ybrh2
Incredible Machine 3: The best installment in the Incredible Machine franchise, featuring all the crazy parts you could ask for to build absurdly awesome Rube Goldberg machines to solve puzzles and make your own. http://ul.to/ouqfzyyl
Sanitarium: A critically acclaimed adventure game I can't say I've ever really played. http://ul.to/tap5fwps
Mini vMac: A classic Macintosh emulator, complete with its own set of games. http://ul.to/9kx9z1s6
Incredible Toon Machine: Like the Incredible Machine, but with cartoon antics thrown in. http://ul.to/sii54bbg
Life and Death 2: The Brain: A brain surgery simulator. Notorious for being extremely exact and being fun to kill your patients in. http://ul.to/gck1kntd
Air Bucks: You are an airline. Set any number of things from destinations to what kind of food you serve. http://ul.to/pd0oh8m2
Lemmings: The classic hard-to-explain wildly fun puzzle game. Often remade, but never ideally imitated. http://ul.to/242ymbru
SimLife: Control an ecosystem! Make your own plants, animals, play with the landscape, inflict natural distasters, watch evolution and everything. http://ul.to/juvwul3o
SimAnt: Control an ant colony. Defeat the rival ant colonies and eventually take over the yard and the house! http://ul.to/zzjaxun5
All games are 0.1 BTC for now. If there are any games you'd like to see here, let me know and I'll go sorting through the boxes of games my grandpa left behind.
EDIT: The Commander Keen games are still under copyright, have been removed from this post, and can be found here: http://www.3drealms.com/games.html