I know that several Steam deals have been posted but I need to draw your attention to Battlezone 98 Redux.
A cracking rebuild of one of the greatest FPS strategy games of all time has been lovingly restored by Rebellion. Knocked down from £18.99, this is an absolute bargain. (£9.49 on Greenman Gaming, over £20 on GOG).
£5.09 for the base game or £6.45 for the full Odyssey edition, which includes the excellent Red Odyssey soviet storyline.
Now if only the'd release a full remake of Battlezone 2 - I played that game to death and still nip back for a fix all these years later. Pure gold! 8)
Product Blurb: One of the greatest sci-fi strategy games of all time returns with remastered visuals, online multiplayer and near unlimited mod content from Steam Workshop. Experience thrilling first person action and acclaimed RTS in this explosive alternate vision of the 1960s space race.