Although it may not sound very appealing to constantly dig through layers of rock and backtrack to the surface to sell your loot, the gameplay works. SteamWorld Dig is addicting, rewarding, and highly entertaining. It combines the mining game style very well with the focus on platforming and exploration seen in classic Metroid games, providing a satisfying and stylish experience that feels fresh and unique despite its obvious inspirations.
Source: N4G PC SteamWorld Dig Review