Ars Magica Digital Codex

Ship Damage

City & Guild provides rules for damage that objects, ships included, can take before breaking (page 77). In brief, the item has a number of Base Damage Levels determined by its quality. This number is multiplied by a modifier determined by its size. For ships, this is listed in the Ship Sizes and Capacity table.

Quality B ase Dam Lvl
Shoddy 1
Standard 2
Superior 3
Excellent 4
Supernatural * 5

* Wondrous Items as in City & Guild.

Ships normally only take damage from storms, fire, naval combat, and magical attacks. In addition, enchanted items, ships included, gain a bonus to any Stress Checks equal to the magnitude of all invested effects. These things combined make enchanted ships particularly hardy.

If you are not using the City & Guild sourcebook, it is enough to remember that enchanted devices are tougher than their mundane counterparts, and the magic invested in them continues to function until the device is completely broken.