Puzzler World is a collection of over 1000 puzzles. Some of them are easier, some are harder - but you can acess half of them at any point. Second half are bonus challenges, paired with regular ones. You unlock them by completing first one from the pair.
There are 14 challenges, like crosswords, spot the diffrence, wordsearches, hangman ect. It may seem boring, but completing it is both fun, and challenge.
After each game (both regular and bonus), you pick a present. It may contain a hint, or a letter (7 of them grant you with around 100 hints). Hints are aviable only in regular challenges, and they provide a bit of help when you need it. They are divided into 3 groups: 5, 10 and 20. The more expensive the set is, the bigger is help, and effects vary in diffrent challenges.
Not much more is possible to be said - it looks a bit like childs game at the beggining, but it's actually quite a nice game.
If you like achievements - this is a perfect game. It takes less than 6 hours to get all of them here, as there are only achievements for completing 10 of each challenge, and nothing for having 100% of the game. Only hint - turn off the music as soon as possible.