You have a board in front of you, made up of approximately one million pixels. Any pixel that does not have an owner (which is bought for the first time) is free of charge and can be purchased by any guest (only the network commission for the transaction is paid) Coordinates start with (0; 0) the upper left corner and end with (999: 999) the bottom right corner
If the pixel already has an owner, then the pixel has a price. The pixel price is 1069120000000000 Wei (0.00106912 ETH) (±0.532$) Ethereum.
Any user can purchase any pixel, but when the pixel has an owner this operation can be done by paying X * 2 Ethereum. Where X is the price of the pixel that the previous owner paid. If you are the owner of a pixel and other user buy your pixel - you will get N * 1.5, where N is the price you paid as the previous owner.
No private accounts, where you can find convenient stories of your purchases - just take a fu**ing pen and notebook or open a text file and clap on the keyboard, if you're lazy a*s - take screenshots - remember what you bought , because otherwise you can buy pixels from yourself, the bloody bastard.
Just for fun, all as is
http://pixelhunt.io/