To successfully upload a crest, the file must adhere to strict formatting standards. If these are not met, the game client will often return an "unable to find file" error. Exactly 16 pixels wide by 12 pixels high.

Must be saved as a 256-color (8-bit) Bitmap (*.bmp) .

While you can design a crest from scratch in Microsoft Paint, many players prefer downloading pre-made packs from community sites like L2 Vanir or specialized repositories.