A game in which counters or pieces are placed, removed, or moved on a premarked surface or "board" according to a set of rules. Games may be based on pure strategy, chance or a mixture of the two and usually have a goal which a player aims to achieve.

Game Board

A game in which counters or pieces are placed, removed, or moved on a premarked surface or "board" according…

An illustration of three children playing a game where they take turns blowing bubbles down a table towards a small goal.

Bubble Blowing

An illustration of three children playing a game where they take turns blowing bubbles down a table…

An illustration of hermit craps shedding their shells and finding new ones. As hermit crabs grow they require larger shells. Since suitable intact gastropod shells are a limited resource, there is frequently strong competition among hermit crabs for the best available shells. The availability of empty snail shells at any given place depends primarily on the relative abundance of gastropods in the right range of sizes, compared to the demographics of the population of hermit crabs.

Hermit Crabs

An illustration of hermit craps shedding their shells and finding new ones. As hermit crabs grow they…

This is a hunting game consisting of a contest with rules to determine a winner.

Hunting Game

This is a hunting game consisting of a contest with rules to determine a winner.

A simulated military operation, carried out to test the validity of a war plan or operational concept: in its simplest form, two opposing teams of officers take part, and when necessary, military units of the required strength are employed.

Naval Wargame

A simulated military operation, carried out to test the validity of a war plan or operational concept:…