• Clip-fed Ballista. (Because who WOULDN'T want to launch giant arrows at their foes?!
  • Fire arrow
    
  • Armor Piercing arrow
    
  • Arrow whose tail pops open into a spinning blade after it lands
  • Explosive tipped arrows
    
• More ammo types for catapult (Like bomb, or fireball) These could be: Cluster of small stones, boulder, poison bomb, and even a hunk of ice (freezes enemies...like when you fly too high)
  
• Spinning Blade and/or bomb launcher. When used a mechanism gives them lots of spin (like a top) and then launches them. They should function like THIS
  
• Realistic Flamethrower. The one the game has right now basically sprays a short range "mist" of fire. This isn't at all how flamethrowers work, AND it sucks because enemies on fire that touch you set YOU on fire. I'd love for it to spray an arc of fiery liquid like this
  
• Pole-arm. Basically something that is both pointed at the tip and has an axe-head. Downside is that the entire length of it doesn't do damage (the handle)
  
• Mortar. Stumpy one-shot mortar comes pre-arced for increased range over cannons. possible with various ammo types
• Barrel of Oil. Can leak flammable oil on button press, or be launched to cover the target area in a large glob of oil. Great in combination with fire to create impassable fire trails or to burn pesky archers.
  
• Various sizes/kinds of cannon for different ranges/purposes. With the ability to choose ammo types
  • Shot (pellets, like a shotgun)
    
  • Ball
  • Chain?
  • Explosive (less blast radius than bomb, obviously)

• Ability to reload cannons using the following system: You would need to store a powder-keg (obviously dangerous to do) and the type of ammo you want to use on your machine. The amount of shots a single powder-keg can reload is TBD based on game-balance, as is the SIZE of the keg (bigger to make it harder to store more vs smaller, etc etc). The reload times should be long, but I think this is a fair way to do this.

• Slanted (45 degree) armor. Because this is a physics based game it DOES matter at what angle incoming cannon-fire hits you. The more acute angle will deflect it better, keeping you from having parts break off.
• A smaller, un-powered wheel. like a shopping cart wheel
• More building materials:
  • Stone: Isn't flammable, but weighs a LOT more and is more brittle (easier to break by shock forces)
  • Light wood: Lighter and visibly more spindly than the normal wood. Flexes VERY well but doesn't have much HP. (for flying)
    
• Tail fins
• Longer wings
• Being able to control the Spinning Block's speed and direction (like the wheel). Either that, or give the player the ability to throttle it while playing.
• Gear blocks of a few varieties and sizes...to allow the creation of really complex and useful machines.
• Rope/pulley system (for various tasks, but mainly because the springs are so un-reliable. Half the time they break your machine.
  • Side note: Give springs a very slight default tension, so that they cannot achieve infinite length as is currently possible.

• Ability to adjust Suspensions height and strength preferences (to allow low/hard suspensions or high/squishy rides or whatever we need)

That's it for now, but if I think of anything else, I'll probably add it here.