Splinter Cell: Blacklist is superb, varied and absolutely enormous - a lot of game for £30. And an wonderful stealthy, stabby, shooty mess of it for £8.99. SimplyCDKeys are willing willing to part with a Uplay code for relative peanuts, though of course, that does mean installing and using Uplay. Probably worth it in this case.
Credit to Looking4Glitches @ HUKD, who found this long before we did!