Fans of miniature plastic soldiers, rejoice. Games Workshop has brought a host of older Warhammer and Warhammer 40K video games to Steam for the first time , alongside a dozen games that haven't been available on Valve's storefront for a few years. The new to Steam releases consist of three games from the Warhammer fantasy range — Shadow of the Horned Rat , Mark of Chaos – Gold Edition and Dark Omen — and four from its sci-fi 40K universe — Chaos Gate , Fire Warrior , Final Liberation and Rites of War .   If you're a Warhammer fan of a certain age, some of these may be formative experiences for you. I know they are for me. I can't count how many hours I spent playing Chaos Gate when I first discovered 40K at the age of 10.…