If you are looking for a game that kills time and meet great people, this is the game you should try.
All puzzles are unique and are challenging/fun, i have MUCH more hours on this game off steam, ive played it twice in the past and it is still a great game with a strong economy.
You can play puzzles that help out during pillages that include Bilging, Carpentry, Sailing, Rigging, Navagation (or Battle Navagation),Gunning (CAUTION: Really hard to get used too), and the new Patching
There are puzzles outside the sea, Crafting skills include: Blacksmithing (My Fav puzzle!), Tailoring, Distillery, Shipyard, Alchemy and more!
Also during pillages you may find treasure islands which contain the Foraging Puzzle, depending on what island it is you can forage for treasure or forage for Gems, you can also find sunken ships which contain the Treasure Haul Puzzle, the more you haul the better the loot.
Also Some awesome PvP Puzzles like: Swordfighting and Rumble (Combat Puzzles); Poker, Spades and hearts (Usual Card Games); and some funny puzzles like Coin Drop or Drinking Game, all of these can be found at all Taverns
The community on this game right now is really friendly, Crews are a great way to interact with other people if you manage to find/make a good crew, though there are some unfriendly players. they are rare to see around.
There is ALOT more to this game then you might think, i say give it a try and see what puzzle you may be great at!