According to Steamlessness 19.41% of FM 2014 players have the Superb Strike Achievement (Your player collected a goal of the season award).
I thought it near impossible but see (on the Steam community stats) 25% got it on 13 and 32.3% on 12

(12 I knew would be higher but still).
So Fallout: New Vegas Old World Blues DLC achievement (not sure how many have it already)
Cardiac Arrest--
Once you get into the DLC, and for those like me who forgot the Mohave Drive-In is where you go to get into it, after the Human Tanks level of dialogue (seriously, I don't know if I've ever wanted to skip dialogue in Fallout: NV more then near the start of Old World Blues) it's pretty much all available to you. Go to X-13, follow the quest for the stealth suit will lead through everything well.
Before you start the test, go through the room and destroy all the turrets and robots, there are 3 robots and 4 turrets (counting the one by the door) I believe. If you want to save time, go through the door with the "employees only" sign right of it, and destroy the robot in the first hall, continue forward killing the robot and turret near the L, and that should be all you need to avoid them. The sonic wave whatever gun they give you works well for the robots here.
If you have a repair or science of 50+ (think it was repair), should take out the tripwires on the wall too. If you use the employee's only door, there is one just past the L, I believe the thing to turn it off is on the right side wall before the door to the office. In the office there are two, don't remember exactly where they are, but should be pretty easy to find, one in each room.
Finish the test and you have the achievement. In the test the EO door is behind an average level lock by the way, so read a skill book or something if for some reason you don't have a lockpick skill high enough. After the test you'll have to fight at least 3-4 roboscorpions which I thought were a pain in the ass to kill (more then 3-4 if you plan on leaving X-13).
If you don't have 50 science (somehow) or repair, you'll have to find the tripwire node thingy in the hallway and 2nd office area to know where to jump. The first (hallway) you have to jump over, and the final one (2nd office) you'll have to jump over. The first office one, if you jump on the desk or over the chair by the desk, you'll be able to get around it. Can also just jump over it probably.
Playtime wise, I didn't count but probably guess maybe an hour? Most of that is all the dialogue near the beginning. This is assuming you are at a decent level, think they said at least 15+, I went at 26 and it hasn't been easy, though I hardly have the best guns with me. The roboscorpions are the toughest so far.
EDIT: The KHAAAANNN (however it is written) achievement for Magicka is at the end of Chapter 5 apparently, not sure how long that'd take but guessing a decent amount?
CK II first two seem pretty easy, thus most probably have it but if you haven't played it since achievements were added maybe not?