A real-time strategy game where you design airships and then fight with them. The aim is to have pretty chaotic explodey fights and interesting ship design choices.
The coat of arms editor in Airships uses proper heraldic rules and descriptions. For example, this one is "Quarterly sanguine and or, in the first quarter a ram’s head or"
is this like a decal creator?
Pretty much, yeah. It's for creating the coat of arms ("logo") for your empire. The plan is that each different charge ("symbol") will give you a particular bonus as well.
What about our own fully original made-by-ourselves-outside-the-game coat of arms?