Drill straight down a shaft packed with coloured blocks — clear matching clusters to keep descending while loose blocks tumble in around you.
You pilot a drill down a vertical shaft filled with coloured blocks. Clear connected groups of four or more of the same colour to open the way down, and keep moving as dislodged blocks fall in behind you. Get pinned or crushed and the run ends — depth is your score.
Deep Bore draws on the drilling puzzle of the late 1990s — bore down a shaft of colored blocks, clearing connected groups while dodging the blocks that tumble when you dislodge them, and keeping a ticking air supply topped up. A tense, downward twist on the falling-block puzzle.
Deepbore is an original free browser game in the connected-group block-clearing tradition, set in a descending shaft with two difficulty levels. No download needed.