The Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme. It features both single player and online multiplayer combat.

Explore the world of Wesnoth and take part in its many adventures! Embark on a desperate quest to reclaim your rightful throne... Flee the Lich Lords to a new home across the sea... Delve into the darkest depths of the earth to craft a jewel of fire itself... Defend your kingdom against the ravaging hordes of a foul necromancer... Or lead a straggly band of survivors across the blazing sands to confront an unseen evil

Features

• Units hand-animated in a vibrant pixel art style, with semi-realistic portraits used for dialog.
• 16 singleplayer campaigns and 46 multiplayer maps to choose from.
• Over 200 unit types in six major factions, all with distinctive abilities, weapons and spells.
• Face off against other players over the Internet, or challenge your friends over a private/local network or hot-seat.
• Translated into over 30 different languages.
• Highly moddable engine
• Tons of player-made content available from the official add-ons server: new campaigns, factions, and multiplayer maps with new and unique mechanics and artwork.