This is a cute little puzzle game by Elusive Games, the makers of Plunge! and Lands of Kachitoria. The mechanics of this game is a bit of mix between Tetris and Bejewelled. You drop groups of sludge blocks (3 at a time) from above and the goal is to keep the well from filling up. In order to do so, you must line up the blocks to match 3 blocks of the same type of sludge, either vertically, horizontally or diagonally. When you do, the blocks evaporate and any blocks that were resting on them fall down. Time is also against you as the blocks slowly harden. Once hardened, the blocks can only be cleared when adjacent blocks evaporate.

This game is light and fun, the graphics are decent and in my opinion this is the best game from Elusive Games yet. Everything is classic DHTML with sound delivered via SoundManager2.