Few would have been aware of SteamWorld Dig’s existence before the last Nintendo Direct saw Satoru Shibata rather casually announce that it was to launch on the eShop immediately after the end of the presentation. I’ll admit, I dismissed it on sight: though it looked nice enough, it reminded me too much of the disappointing Dillon’s Rolling Western, if only for the Morricone-esque whistling on the soundtrack. Well, more fool me, because SteamWorld Dig is an unexpected joy, a winning blend of Metroid’s exploration and atmosphere with the tension of Mr. Driller’s careful path plotting and limited resources. Toss in a pinch of Spelunky’s…