More Pickaxes
Koda_

Adds additional pickaxes to the game

Christmas Tree
ExeterDad

Adds a decorated indoor Christmas tree with wrapped gifts.

Alien Material
debiankaios

Adds new blocks, items, and tools from aliens. A new time begins.

player flying animation
GigaByte

change the player animation when flying

Scaffolding
Semmett9

Adds wooden and Iron scaffolding.

Inventory Plus
TenPlus1

Simple Inventory replacement

Colored Meselamps
devurandom

Adds colored versions of meselamps, craftable with dyes

NextGen Tinted Glass
StarNinjas

Adds tinted glass that doesn't allow light to pass through

Pigiron
TenPlus1

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

XBlocks
GamingAssociation39

Additional blocks for decoration/building

Rain Barrels and Wells
Piezo_

Replaces overpowered "water generators" with a unique water-harvesting system

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

Moonflowers
karlexceed

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

Chains
X17

Adds chains to climb or decorate

Wet Mud
Nicu

Hydrates farmland without using water directly

Quarry Mechanics
kestral

Adds quarry mechanics to stone nodes.

Oxidizing Copper
StarNinjas

This mod aims to make copper/bronze more realistic by making them slowly oxidize into a bluish/green block when exposed to water.

Basic Grenades
LandarVargan

Adds some basic grenades using the grenades API

Clay Bricks
AwesomeDragon97

Adds colorful clay bricks.

Dirtcraft
dayer4b

Adds automatic crafting recipes for making most kinds of dirt

Craftable Lava
MikeRedwood

Enables the crafting of lava from baked stone

Nettles and Other Weeds
Hypernoot

Nettles spawning on junky plots

Axis Tools
mt-mods

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

Mylandscaping
Nathan.S

Lets you put up decorative walls around your gardens, and make pretty hardscapes.

Procedural Furniture
the_raven_262

Creates furniture collections

Missions
BuckarooBanzai

Adds blocks to create missions with rewards, timeout and penalties.

More Stones
Blocky Player

Provides a variety of educational and decorative minerals and rocks.

Morebricks
CalebJ

Adds an assortment of new bricks to build with.

Candy
Kostivar

Adds candy which you can make from candy ores.

Chocolatestuff
lazerbeak12345

Adds edible chocolate tools and armor to Minetest.

Sieves
AwesomeDragon97

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

Cones: Traffic and Training Cones
ClassicAdam

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

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Pixelart
Linuxdirk

Nodes for pixelart grouped in color palettes

Transporter
mt-mods

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

Bricks Plus
X17

Adds different brick patterns

Lava Ore Gen
Coder12

Makes the lava turn stone into ore over time.

My Mason Hammer
Don

A hammer to make stairs, ladders and footholds

Tomb Stones
Nathan.S

Adds many shapes and styles of tombstones.