TensionSplice
477
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Day 1: Set up a basic system that placed buildings and trees completely at random and generated rolling hills on the terrain based on perlin noise.
Day 2: Set it up to assign varying textures to the terrain based on height & slope. Set it up so the buildings cluster together in "cities" using a function similar to the one I used to generate the terrain slopes.
Day 3: Added lakes. Didn't quite get the smoothness right around the edges yet.
Day 4: Added randomly placed enemies.
Day 5: Added rivers, figured out how to get the terrain properly smoothed around the edges of the water features.
Day 6: Added an algorithm that makes the edges of rivers and lakes bumpier for a more "natural" look.
Day 7: Added a better water effect including foam & wakes. Added ship enemies.
OrangeCraterStudio
Wow, the progress in one week is pretty amazing! is it a tiling system or like WFC?
TensionSplice
Some of the features are generated using perlin noise, textures get assigned based on a mixture of height and slope and then things like rivers and lakes get drawn around randomly selected points.