A genre of Puzzle Game
with some sort of terrain to dig through and Selective Gravity
, wherein objects fall down (squashing characters in their path) but characters generally don't. They can be seen as Puzzle Platformer
with a flying protagonist, or a Maze Game
with a more obstructed environment; the emphasis on solving puzzles as opposed to dexterity varies from one game to another.
The Trope Codifier
is Boulder Dash
(of which a huge
number of freeware ports exist), and many games in the genre name themselves after a kind of gemstone, a kind of cave, or both.