So... I recently have been thinking about terraria a bit... So there's a new biome thing I thoguht off... It's the Moon! But first... The Space Dragon Boss! It's massive, just like the Wall of Flesh. It has 26000 health points. Killing it will have a 100% chance to drop a Spacecraft bench. You cannot go to the Moon until you have beaten the Space Dragon boss. Using metals like Cobalt, Iron, Mythril and Adamantite you make spaceship parts: Contoller, Turbine, Engine, Wings, Metal Blocks, Metal Block Walls, Cyan Wires, Turrets etc. The spaceship's body is made out of Metal Blocks, Metal Block Walls and Glass. The parts above are exclusively spaceship parts. Any amount of players can get to the Moon as long as they all fit in. The pilot goes to the Controller and presses the F key. The ship leaves the world's grid to move freely without stuttering like an entity. When a player exits the controller (taps F key again), the ship joins world's grid and stands still like a building. To make the Ship's Controller recognize the body blocks, they all must be connected with Cyan Wires. Ok, so here goes the Moon biome-dimension thing thing: I noticed that when you go too high up in the sky on Terraria, the gravity decreases (Captain obvious). So, if you go very high up using the spaceship, you could reach the Moon dimension-biome thing. BUT before the moon there is the Outer Space biome. If a player exits the Spaceship there, athey will suffocate and freeze to death. The animation is like the player turns blue then falls out of the world. In the Outer Space, enemy Aliens attack player's Spaceship. Players need to use Turrets they built on Spaceships there. To man an armed Spaceship, there must be two players: One as the pilot and the other as the gunner. There can be more than one gunners. Turrets can also be attached on a house for anti-zombie defense. Ok, so on the Moon, the gravity nearly equals to zero. There are Alien Slimes (that drop Green Gel), Aliens that shoot with space guns (They have 5% chance to drop a space gun of any color), Alien warriors with phaseblades (They have 2% chance to drop a phaseblade of any color) and there's an ore called Moonstone. The Moonstone has yellowish texture, with white waves on it. The Moonstone is an ore like hellstone, though it doesn't pop lava out when mined, but it needs 5 Moonstone and 1 Cobalt Ore to be smelted into a Moonstone bar. The Moon also contains Alien Bases with decent loot but they are hard to enter as they contain laser turrets that can be picked up. A player can craft Alien Tech like Laser Turrets for their homes and Spaceships once they have an Alien Blueprint of a certain item they want to craft in their inventory, at the spacecraft bench. I think that Laser Rifle, Laser Gun, Phasesaber, Phaseblade and other laser weapons of laser has to be only accessed by crafting with Alien Blueprints or stealing from an Alien Base. You can also befriend Aliens... Until they find out you steal their stuff. Alien Bases would also contain Alien Ships (A.K.A. Flying Saucers). They contain lots of laser tech witch can be reassebled or taken home. Regular spaceships crafted by players use fuel like wood, charcoal or oil. Alien spaceships use mana as fuel as they're laser-tech. If mana is depleted, the turret, spaceship, etc. will use alternate fuel: oil. Oil can be crafted using Fireblossom and a Water Bucket. One bucket can be used to travel 250 ft. The fuel tank in the ship is automatically the controller. The controller interface tells how much feet you can travel with a particual amount of fuel. To open the interface, the player needs to simply right click the controller. The spaceship's fuel consumption and speed depends on the engine and turbine number. In Alien spaceships alternate fuel is used in the same way, though they only accept oil as fuel. Charcoal can be crafted at a furnance with 1 wood to 4 charcoal. One wood can go up to 25 feet and one charcoal can go up to 15 feet. Ok, that's all for now! I gotta go and remember to post more if you have an idea! I will quote the best suggestions in right here! Thank You for Your attention! Even one "Yes" can do a lot! Bye! I especially loved the idea of Red Moonstone and Red Meteorite and how the guide encourages You! Oh, the idea with NPCs sharing crafting recipes is cool too! Thank You Moon and Star!