Keyboard: Up and Down arrow keys move the Sun by four percent, hotter or cooler. Hold Shift for twelve percent. Left and Right arrow keys steer the cold wind. Press 1 for Storm, 2 for Calm, 3 to Refill the lake.
The Terrarium · Rain Maker

The Rain Maker

Lake0.86
Cloud0.08
Rain0.0/s
Turns0
Sun heat
Cold wind still