WeiBoard

You claim a pixel block for 0.001 ETH per unit, place your image and link on it, and establish your own price. Monthly upkeep costs 5% of your asking price. Set a higher price for more security but pay more to maintain it. Price it low and it's cheaper to keep but easier for others to buy out. When you're bought out, you collect your sale price plus any remaining deposit. If your deposit runs out, the plot can be claimed by anyone at the base price.

It functions as a strategy game built on a single principle, so the canvas constantly changes hands. Everything operates on an unchangeable, permission-free contract with no admin authority over plots or funds. No token and no NFT exist—only ETH. It's also economical to begin: roughly 0.001 ETH per block, and changing what appears on your plot costs no gas.