Worms

Worms is a cleverly balanced turn-based strategy game in which teams of worms battle across bizarre randomly generated landscapes for supremacy. Each team takes its turn to pick off the opposing teams using crazy weapons, tools, and other utilities, as well as whatever foul strategies they can devise.

Worms die when they lose all of their energy or plunge into the water. The winning team is the one that manages to survive the mayhem and have worms left standing when the dust settles. Sound simple? Easy to play but difficult to master, it's a game of deep strategy that belies its simple appearance.