Fill outlined tanks from the bottom grid row upward to satisfy water-cell totals along every row and column. Gullglass Basins offers 180 distinct challenges across three difficulty campaigns, with an animated 3D bird guide, optional sound, hints, undo and a relaxed pace. Choose any level and enjoy a new miniature tabletop challenge on desktop or mobile.
How to Play Gullglass Basins
Each tank has a fixed outline. Click it to increase the number of filled rows by one; a full tank cycles to empty. Water always occupies the lowest grid rows of that tank. Match the row and column counts shown at the edges. Several fill patterns may be valid; any pattern matching every clue wins. Tap or click the 3D board, or open Button controls. Arrow keys select actions; Enter or Space activates them. H gives a hint, U undoes and R restarts. Choose 60 levels in each of three difficulty campaigns. Sound can be muted at any time.
