The German playwright known for crafting social critiques in his works is Bertolt Brecht. He is recognized for developing the epic theatre movement, which sought to provoke critical thought and societal change through theatrical performances. Brecht’s plays, such as "The Threepenny Opera" and "Mother Courage and Her Children", challenge conventional narrative structures and encourage audiences to engage intellectually rather than emotionally. His approach often highlighted issues of class struggle, capitalism, and alienation, making his work profoundly influential in modern theatre. Brecht's legacy continues to inspire playwrights and theatre practitioners today.