Théophile Monnier is a game designer who is one of the central figures of the wargame industry in France. For more than 15 years he has created magazines dedicated to strategy wargames. In 1995, he co-founded the wargame magazine Vae Victis with Francis Vauvilliers. In 2002, he founded the game magazine PC4War. He also once created a fanzine on ASL Tactics. He designed games in the Champs de Bataille system.