The phrase "siege weapons" refers to big and powerful weapons that are used for attacking and capturing fortresses or cities. They are designed to break through walls, towers, or other defenses of the enemy and help in winning a war. Full definition
Maybe not one of the most prolific new gameplay features is the inclusion of siege weapons. (thesixthaxis.com)
In Gwent, this state of affairs is represented by a deck of peasants and farmers being played onto a board where a special unit like a barricade or siege weapon needs to be protected for a certain number of rounds (by buffing or healing) in order to progress the story. (kotaku.com)
You may even get to see the firing of the greatest of medieval siege weapons, the Trebuchet. (costsavertour.com)