As it stands currently, Create, Create: Aeronautics, and Create: Big Cannons add some really cool mechanics. However, the problem is that the mechanics added can't be used to their full potential. We can make trains and airships, but have nothing that needs to be transported with them. We can make cannons, but there are no mobs that they would be the best option against.

Here are some of my ideas, which I think could be made into an add-on for create. Keep in mind that these ideas are under the presumption that you're using Big Cannons and Aeronautics.

A. Enemies

\"A chance encounter\"

Boss Idea 1: The Stare

This boss is very large and has a flat damage reduction in place of armor. The size should be large enough to easily aim cannons at them, and the armor reduction should be enough to fully negate most normal weapons, forcing you to use cannons to kill them.

It would stand far off in the distance, staring menacingly at the player and send its minions to kill them.

After a certain amount of time, it would de-spawn. This is because the player might summon them without actually being able to kill them, and also to provide some pressure on the player to build up a few cannons.

The loot for the boss has to be good, since you need to put a lot of effort into killing it. Once special resource I'm thinking of is called Facsimilite, which I'll get into later.

Boss Idea 2: The Bombardier

This boss, similar to the last, is large and has the same flat damage reduction (for the same reasons). However, its method of attack is different. It fires Big Cannon projectiles at you, forcing you to be on the move or potentially damaging your vehicle. Part of this boss fight would be dealing with the repairs you would have to do.

Its form could potentially be a giant enemy airship or something, which would be cool.

Its loot would be lots of stuff to make more ammunition and better cannons (potentially some netherite).

B. Resources

Firstly, there should be resource nodes, which constantly produce a resource, such as iron, copper, or gold. They would be quite rare, so you would be encouraged to build a railroad out to one if you find one to constantly get a supply of the resource. This can already be done artificially with cobblestone generators and several processes, but a node existing would be more convenient.

Being so rare, you would have an item, like a prospector's pick, that would give you a distance to the nearest node and its size. You could then triangulate to find its exact location.

Facsimilite would be a rare resource, potentially from a node, that is destroyed when mined, even with Silk Touch. You need to move and transport it on a train or airship. Its value comes from its ability to turn into certain other resources when put into contact with them.

C. Places

The Pillaging of the Air Temple

The Air Temple is a series of floating islands that is placed under a terrible curse. Your player will die if they don't have a warding charm on them. However, there's a catch: the charm removes your ability to place or destroy blocks. It essentially puts you into adventure mode. If you want to break down the doors to the temple such that you can plunder it, you need to bring an airship with cannons.

Flying in this area are the guardians of the temple, which could shoot projectiles similar to ghasts.

Once you breach the temple gate and reach the heart of the temple, you can finally remove the curse and be able to build and mine there.