(WARNING, this is not written or balanced for general play, it's written from my playgroup. You are however free to use this if you wish)

Worldcrafters create the world around themselves, using magic to manipulate the battlefield, craft items, or to build grand structures with only their minds.

Impiran Setting Specific Lore: Worldcrafters were a prestigious class among the Non society. They could use their psychic powers to create anything they desired, and were commissioned to make grand cities and vistas for their emperors. Now there are few Non worldcrafters still in existance, as their society was wiped from existance by gods thousands of years ago. While the worldcrafters of old could make massive structures easily, the weakening of the Non has reduced their abilities to be far less godlike. Even now however, Worldcrafters can exert some influence on the world around them.

Tool Proficiency

3rd-level Worldcrafter feature

You gain proficiency with Cartographer's Tools. If you already have this proficiency, you gain proficiency with one other type of artisan’s tools of your choice.

Worldcrafter Spells

3rd-level Worldcrafter feature

You always have certain spells prepared after you reach particular levels in this class, as shown in the Worldcrafter Spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

Worldcrafter Spells

Artificer Level	Spell
3rd	Create or Destroy Water, Fog Cloud
5th	Dust Devil, Web
9th	Erupting Earth, Wall Of Sand
13th	Watery Sphere, Fabricate
17th	Creation, Control Winds

Worldcraft

3rd-level Worldcrafter feature

You have three points of Worldcraft that refresh on every long rest, and can be spent on various abilities. At 5th level this increases to 5 points, at 9th level this increases to 7 points, and at 15th level this increases to 9 points. As you level you will gain access to new Worldcraft abilities. All Worldcraft abilities require an action to use.

Alter Terrain - (Costs 1 Worldcraft Point) You create more of the local terrain within 10 feet of you, up to a 5 foot cube, that will be created in any simple geometric shape you desire. This terrain has hit points equal to 1D6 per your Artificer Level, and will disappear if it's hit points are depleted. This terrain will disappear after 1 minute spent not concentrating on it, if you concentrate on it for a whole 12 hours it will become permanent.

Tunnel - (Costs 1 Worldcraft Point) You can create 5 foot wide hole in a wall (or floor or ceiling) that is up to 10 feet deep. This hole will not be created if there is no open space on the other side.

Liquid Creation - (Costs 2 Worldcraft Points) You can create enough of a single liquid to fill a 5 foot cube. This liquid must be able to remain a liquid at room temperature (AKA, no magma).

Create Furniture - (Costs 2 Worldcraft Points) You can create a piece of furniture, you can have it be made of common materials such as stone, cloth, wood, and common metals. The Furniture cannot be larger than a 10 foot cube

Create Flora - (Costs 2 Worldcraft Points) You can create fully grown, nonmagical plants. If this plant bears fruit, you can create it currently bearing edible fruit. Small plants such as flowers can be made as much as you want within a 30 foot radius. Bushes and Trees can only be made as a single plant and trees cannot be wider than 5 feet in width at their trunk. Trees will disappear after 1 minute spent not concentrating on it, if you concentrate on it for a whole 6 hours it will become permanent. Fruit removed from the tree before it's disappearance will remain in existence.

Create Fauna - (Costs 3 Worldcraft Points) You can create a single beast of 1/8th CR or lower. You have no control over this creature, it simply exists.

Advanced Worldcraft

5th-level Worldcrafter feature

You have new creations you can make with your worldcraft points

Create Building - (Costs 4 Worldcraft Points) You can create a building in an unoccupied space, it can have up to five rooms, two floors, and will be empty upon it's creation. You can choose the style of how the building looks. The building cannot be larger than a 30 foot cube. The building can be made a mix of Stone, Wood, Metal, Mud, and any other common building material.

Create Arms and Armor - (Costs 4 Worldcraft Points) You can create a single simple or martial weapon or set of plate, chainmail, or leather armor. They can be visually styled in any way you wish.

Cloudcall - (Costs 4 Worldcraft Points) You create clouds in the sky, while making them you can choose for them to precipitate, allowing you to make snowy, rainy, hailing, or stormy weather.

False Replica - (Costs 5 Worldcraft Points) You can make a visually perfect replica of any creature, weapon, or item. However, it will not be alive and will hold no magical properties. When replicating creatures, you can choose between making it stiff (like a mannequin) or limp.

Flow of Creation

5th-level Worldcrafter feature

For every three spells of first level or higher you cast during combat, you gain one temporary worldcraft point that lasts until combat ends.

For every three worldcraft points you spend, regain a first level spell slot.

Malevolent Terrain

9th-level Worldcrafter feature

While in combat, you may spend a worldcraft point as a bonus action to make the terrain under a creature of your choice that you can see always be difficult terrain for one minute. This difficult terrain will follow them. Additionally, the target creature has disadvantage on dexterity and strength saving throws.

You may spend a worldcraft point as a reaction to give an attacking creature of your choice that you can see disadvantage on their attack roll.

Masterful Worldcraft

15th-level Worldcrafter feature

Create Geyser - (Costs 6 Worldcraft Points) You may create a geyser with an up to 10 foot diameter hole at a point within 30 feet of you, full of boiling hot water. You may specify this geyser to shoot hot water into the air up to 3 times a day.

Grand Monument - (Costs 6 Worldcraft Points) You may create a stone monument or statue no larger than a 40 foot cube, it may have any design you wish.

Recolor The Sky - (Costs 7 Worldcraft Points) You may change the color of the sky for a single day. If you use this ability every day for a month, using the same color each time, the sky will permanently stay that color.

Split River - (Costs 8 Worldcraft Points) You may create a new fork in a river that you are within 40 feet of, causing it to branch in a direction of your choice.

Create Hill or Valley - (Costs 9 Worldcraft Points) Raise or Lower all terrain within a mile radius into being a hill with a height of up to 100 feet centered on you.

Change Biome - (Costs 9 Worldcraft Points) You can change the biome of everywhere within a mile of you, you must choose between Arctic, Desert, Forest, Grassland, Mountain, or Swamp. This will replace all flora and fauna of the surrounding area and will change the soil to match the biome type. Otherwise the area will stay the same. The biome may change back over time, or quickly if the biome is enforced by magic.

Godcraft - (Costs 9 Worldcraft Points) You create a shard of a potential god. Every time you use this, the shard will grow stronger. After 100 uses of Godcraft on the same shard, you create a new god in the world, you determine it's alignment, look, gender, personality, and domain