Hmm . . . I wonder if you'd like Full Bore. No jumping, but it's got lots of exploring and item-hunting, plus some really satisfying tunneling. https://www.youtube.com/watch?v=1ej7bjZrDig

(Fair warning: the trailer only hints it at the end, but it's actually something of a horror game--just a really sneaky one that keeps its scares in moderation. You will be freaked out at some points.)