A game is a structured , usually undertaken for enjoyment and sometimes also used as an educational tool. ( The term "game" is also used to describe simulation of various activities .

Online games can be played in a browser anywhere , anytime the user has an Internet connection . Online games are popular across virtually all countries and age groups.

The large number of puzzle games that have been created can be divided into categories, for example a maze is a type of tour puzzle. Other categories include: construction puzzles, stick puzzles, tiling puzzles, transport , disentanglement , sliding , logic , word , picture puzzles, jigsaw puzzles, lock puzzles, folding , and mechanical . A meta-puzzle is a puzzle game which unites or incorporates elements of other puzzles   More detail...