The more adventures you experience on the Radioactive Atlas server, the more your need for high-quality items will increase. In Atlas, you can create improved items with the help of blueprints. Blueprints can be found, for example, at the Pirates & Navy factions or with Haunted Land Chests, Haunted Ocean Chests or Sunken Sea Chest.
There are 7 different quality levels on the Radioactive Server:

Common / Ordinary

Fine / Good

Journeyman / Journeyman

Masterwork / Masterpiece

Legendary / Legendary

Mythical / Mythical

Unique
As the values of the individual quality levels overlap, it can sometimes happen that you find a blueprint for a Journeyman cannon with more damage than a Masterwork cannon that you already have in your cupboard, for example. As a rule, the durability of the Masterwork cannon will be significantly better. About the Grinder you can upgrade your construction plans.
The quality of your blueprint essentially determines how expensive it will be to build your structure. Here is a comparison between a Fine and a Unique cannon:


