Every shard that can fall. Shards are dealt in shuffled rounds, and each turns up as often as shown. During a game, the number shows how many of that shard are still to come before the next shuffle; faded ones won't appear again until then.
How to play
Goal: keep the cave from filling up. Fit the falling crystal shards together to make full rows, which shatter and make room.
Shards fall one at a time. Move and turn each one as it falls so it fits into the gaps below.
A row that's filled from wall to wall shatters and everything above drops down. Shattering several rows at once scores far more than one at a time.
Shards come in 3-cell and 5-cell shapes. The panel at the side shows which ones are coming next.
Stash puts the current shard aside to use later (and brings back the one you stashed before).
Every 10 rows you go one level deeper and shards fall faster. Deeper levels score more. "Start at depth" lets you begin further down.
The game ends when the shards pile up to the top of the cave.
Controls
Keyboard: ← → move · ↑ or X turns (Z turns the other way) · ↓ falls faster · Space drops it straight down · C or Shift stashes · P pauses.
Phone: slide your finger to move · tap to turn · drag down to fall faster · flick down to drop straight down · flick up to stash. Or use the buttons.