Angled Walls
TumeniNodes

Angled & Sloped Walls, Angled Glass, & Angled Doors

XBlocks
GamingAssociation39

Additional blocks for decoration/building

Geodes
AwesomeDragon97

Adds amethyst geodes and an API for making custom geodes.

Pigiron
TenPlus1

Adds pig iron ingots which need to be crafted to make steel, also blocks and stairs.

My Scaffolding
Don

Scaffolding to help you reach high places

Gems Battle
MisterE

Bedwars-like team battle minigame

Inventory Plus
TenPlus1

Simple Inventory replacement

Irrigation
monk

Makes dry soil wet for farming

Bricks Plus
X17

Adds different brick patterns

Transporter
mt-mods

Adds a configurable technic-based transporter, with bookmarks and many options

Stripped Trees
1faco

Adds Stripped tree trunks.

Wet Mud
Nicu

Hydrates farmland without using water directly

Clay Bricks
AwesomeDragon97

Adds colorful clay bricks.

Nettles and Other Weeds
Hypernoot

Nettles spawning on junky plots

Astralcraft
EmptyStar

Adds shooting stars and and related items to Luanti worlds

XP Redo
mt-mods

Adds experience, ranks, and doors only accessible to those above a certain rank. Not actually a redo of any mod.

Portable Chests
Bob64

Portable chests you can pick up even when there are items inside.

Magma Conduits
FaceDeer

Removes default mapgen lava and adds widely-spaced vertical lava "veins".

Lava + Water > Stone
1F616EMO

Cool Lava into technically special stones for easier cleanup

More Pickaxes
Koda_

Adds additional pickaxes to the game

Invisibility Potion
TenPlus1

Craft a potion to make yourself invisible

Axis Tools
mt-mods

All the functionality of tinkers construct, but all in your inventory.

Slats
v-rob

Adds decorative slats that have a lot of uses.

Scaffolding
Semmett9

Adds wooden and Iron scaffolding.

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

NextGen Bedrock
StarNinjas

Adds an indestructible bedrock layer at the bottom of the world.

Craftable Lava
MikeRedwood

Enables the crafting of lava from baked stone

Cones: Traffic and Training Cones
ClassicAdam

Cones. Various use traffic cones and training cones. 3 sizes, 10 colors, 30 cones in total.

Chains
X17

Adds chains to climb or decorate

Zero-Effort Custom Minerals
Piezo_

A tool for registering entire materials, complete with ore generation, tool-sets and automatically generated sprites with almost no effort required

Procedural Furniture
the_raven_262

Creates furniture collections

Music Player
Jose_ManuelS18

Adds a music player and discs

Aqua Farming
Clyde

Farming under Water, now it's possible.

Moonflowers
karlexceed

Adds a rare pale blue flower that glows faintly in the darkness.

Minetest 2D
AiTechEye

Transforms the world into 2 dimensions

Mistere's Adventure Map Island Creator
MisterE

A 1000x1000 canvas for your imagination

Quarry Mechanics
kestral

Adds quarry mechanics to stone nodes.

My Mason Hammer
Don

A hammer to make stairs, ladders and footholds

Sieves
AwesomeDragon97

Adds sieves that are used to separate (occasionally) valuable debris from sand.

Infinite Chest
Dragonop

Adds a configurable chest that gives an infinite amount of something.