Word Puzzle

To unlock this achievement you must score at least 4000 points over the course of the 8 survival campaign levels. Make sure you go for this at the same time you are working on the Survival Master achievement (the achievement for beating survival mode) because if you finish the survival campaign with less than 4000 points, you will have have to play the whole thing from the very beginning again, which can take another 1-3 hours.

Just make sure you find all the regular words before the bomb words to get the most points, because once you get the bomb words, the level will end. One great method shared on one of the other achievement solutions is to use a camera to take a picture of the board, then pause the game and find all the words on the picture, that way you don't have to worry about the timer running out. Be sure to also find any pair words back to back (synonym or antonym words) and find words that have a X2 or X3 icon next to them to maximize your points.

The moment you hit 4000 points the achievement will unlock. I was able to hit 4000 by the time I reached the 5th level.