Mailing the story:
April Fools'? Battle for Wesnoth Project Introduces WesGold Accounts
Battle for Wesnoth is a completely free, feature-complete, very popular turn-based strategy game available for Linux. With Wesnoth 1.12 on its way (the second beta was released just a few days ago), Wesnoth benefits of a large, dedicated community and an active development. This is definitely a game which I love and occasionally play for a long time now.