The sea never stops rising. Hold the line as long as you can.
Borders: Natural Earth via world-atlas. GDP & population: World Bank (2023, rounded). Mean elevation & coastline: CIA World Factbook. Terrain is generated from each country's real outline and mean elevation.
New run
How fast does the water rise?
Choose your country
Stars combine how expensive your coastline is to wall off against your GDP, and how low your land sits. Starting a new run replaces any run in progress.
Pick a country
Match history
Funds
Income/yr
GDP
People
Sea
Wall
Margin
Rising
Land lost
0%
The sea has passed another metre. Choose one boon for the rest of this run.