Shadow Complex
A title update borked my save file (it kept my level, but my progress was gone!) - so I got to play the first few hours of the game all over again. The second time through, it was actually more fun. By virtue of its easy-to-understand mechanics, Shadow Complex revels in its details, as each new item and new passageway is a joy to find.
Despite not being especially new, Shadow Complex has really grown on me. Its occasional flaws (aiming, camera, pacing, saving) are no match for some good-old-fashioned game design.
Progress: 68% map, 44% items, Level 17