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This mod lets you temporarily remove water around you, so you can walk (and see, and do stuff) as if the water weren't there, and it lets you permanently remove water if you want to clear an area out.

This mod lets you place water anywhere you want (as long as the ground is low enough) without having to connect it to existing water and wait for it to fill. So you can just dig a lake anywhere and fill it up easily.

This mod lets you keep specific areas of the regular outdoors loaded in memory, even if no players are nearby. This is useful for a few situations, including the mod "Simple Machine Automation" which normally stops running if you go too far away.

Automatically picks up items on the ground, produced by machines, harvested, and more. Safer in multiplayer than alternatives. Leaves items alone if you drop them on purpose, so you can still plant stuff. Adjustable range (including infinite). Configurable blacklist of item types to not pick up.

This mod adds an FPS (frames per second) meter to the in-game clock.

This mod allows you to non-destructively pick up and move many objects, such as rocks, ore deposits, trees, bushes, ferns, and tall grasses, and place them down outside anywhere they will fit without having to wait for them to regrow. You can even take stuff from the deep mine to redecorate your desert.

This mod allows you to grind bones into bonemeal, which can be used on anything that grows to advance its growth without having to wait a day, and also improves the yield of converting bones into fertilizer.

This mod allows you to input a world seed shared by someone else to make your own version of their world, it allows you to browse and preview random seeds to find a world you like to play, and is a modding framework for creating new types of world in addition to the base game's normal island layout.

This mod adds advanced functionality to the metal detector that will scan the island for treasure (the range depending on a new license to purchase) and put an arrow above your character's head to point towards it as you move around while holding the metal detector.

This mod adds the Animal Crossing photos feature, where you do tasks for residents and (if they like you enough), they will give you their photo as furniture.

This mod lets you put a large number of additional things (like trees, rocks, grasses, corals, and bonsai versions of a lot of them) in flowerbeds and flowerpots.

When you connect to a server, it does not send you the entire world: You only receive parts that are near you, or parts that other players change while you are connected. This mod forces the entire world to update so that you have an actual up-to-date version.

The map in the game is very reluctant to update when things in the world change (like placing down paths). This mod forces it to stay updated in real time so you can see the changes you make.

This mod prevents you from picking up empty flowerbeds or flowerpots unless you are holding down a key (configurable), so that you can gather your flowers from them easily and leave the beds alone.

This mod affects the "outside" music of the game (when you're not in a tent/building). It will shuffle all the different songs (daytime themes, night, underground, rainy, and windy), and you can even shuffle in the shop, regular interior, and main menu themes if you want. Or, just turn off the outdoor music entirely.

This mod lets you move your tele-towers around (after you have repaired them). They are fully-functional this way so you could even carry one (or more) around with you as a personal transport device like "mark and recall", or you could just delete them all if you don't want technology on your island.

This mod makes it so that whenever you split a stack, all stacks in your inventory will balance with it automatically, so (for example) you can just split any stack three times quickly and you will end up with 4 stacks all of the same size.

This mod lets you generate images of the world produced by various random seeds from inside the game, so you can generate a bunch of them all at once and find one you like, or you can even share with others and use seeds shared with you.

There are "natural" quarries in the game, called the Rough Soil biome filled with rocky dirt, where you commonly see copper and tin spawning after sleeping. (Iron and opal can spawn too, but rarely.) This is a helper mod that makes sure those areas have as high of a chance to spawn ore as possible.

This mod allows you to edit the ground underneath placed buildings without having to move them, as well as under other things like trees and rocks. You can change the ground material, add/remove grass (including mowed), and add/remove paths. It will not change the height of the ground: Only what's on it.