LordPaul

Bloody hard to get as there (at the moment) only 22 puzzles and you need to get 20. And there are SIX that are missable - ie. once you go through a certain related missions you cant go back and get them

Check out this really handy guide http://www.powerpyx.com/mass-effect-...ons-locations/

I did this at the Taffington Boathouse

Ensure you have high Charisma (I had 10 when I did it)
* Recruit, or move 5 settlers to your location
* Build 3, lvl 3 clinics and assign 3 settlers to them
* Build 1, lvl 3 bar, and assign a settler to it
* Plant 6 mutafruit, assign the 4th settler to farming
* Build two water pumps
* Build enough defence (defence value should be higher than water + food)

Decorate/build the area until it becomes large (ie the size bar goes yellow)

Now the long haul,
1. Sleep for 24 hrs
2. Talk to each of the five settlers
3. Repeat above steps.

This last part took a couple of hours for the happiness to slowly climb to 100, but the entire time you need to stay at the settlement, as moving away can actually reduce happiness

Simplest way to do this is to make Jet

Materials are easy to come by.... just keep cooking until the achievement pops

You can get this within 5 minutes of starting the tutorial level. Upon leaving the beginning part of it make you way to the castle just left of the fountain. On the bridge to it you will see a sand village off across a pond. Go there, and standing on the furthest side from your starting point, look to your right you should see a vague outline of a ship. Go there. There will be a massive house next to it (X: -169, Y: 83, Z: 322). And just as you walk in the front door, first door on your right, should say imagination room in it will be all the colours of wool some diamond blocks and a lot of other things.

Credit goes to http://www.trueachievements.com/viewcomment.aspx?commentid=830861#vch