Sculpt a landscape, seed a storm, and watch runoff carve the basin.
The final build connects terrain generation, surface water, sediment transport, and session review.
Balanced default
A steep but plausible catchment with moderate infiltration, realistic sediment settling, and enough storm input for visible short-session erosion.
Look for channels that organize gradually, with visible sediment motion but fewer instant trenches than the older high-gain setup.
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Operator actions
Scenario reading
Finish a study to see how the selected basin behaved.