WWI Source: Fight in the rain soaked trenches or charge over No Man’s Land to battle in the War to End All Wars. Use authentic weaponry to conquer the enemy, call in artillery strikes to take out enemies en masse, or use chemical warfare to disable your opponents! WWI Source is the first and only World War I game to be developed for Steam. All the current WWI mod teams (‘The Trenches 2’, ‘Fields of Horror’, ‘WWI Source’) have united to develop the best World War I game to the Steam community, using the latest Source engine. Please visit the official website for more information on WWI Source and the team.
I love this game, very fun to play, especially realisms. And for the love of God, there are servers though they are filled during weekends or weekday realisms. I love the bolting system and the Officer's Arty & Gas abilities. It makes it the same as in the real World War One. Too bad many people reject the mod because "there are no servers". Well wait for the weekend and you will enjoy it a lot :)