My Wood Slopes
Don

Make slopes with wood blocks.

My Dye
Don

More dye colors

Node houses
MatyasP

Node houses is a mod by MatyasP that adds one-node block of houses, for crafting using items from mode default.

My Siding
Don

Adds lines on one side of block to make it look like siding

X Clay
SaKeL

Adds hardened clay.

My Default Lights
Don

Simple lights made from default material

More Snow
Sokomine

snow and wool for stairs - nicer winter landscape and snow-covered roofs

My Paint Wood
Don

Paint wood

Maple tree
Duvalon

Adds a maple tree placed during world generation.

Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Better Ice
TheFanne

Modifies ice so that it melts into water when broken, and will be melted by torches

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

My Pipes
Don

Mechanical pipes

More Mese Post Lights!
1F616EMO

Add more mese post light

Prefab Redo
cheapie

Cheapie's version of Dan's old prefab mod, which adds pre-fabricated concrete elements: catwalks, benches, ladders, railings...

plots
bookgirl

plot world system inspired by PlotSquared for Luanti

My Ladders
Don

Adds different ladders to the game

My Paths
Don

Dirt paths.

My Cobble
Don

This is a simple mod that lets you turn cobble into gravel and gravel into sand

Columnia
mt-mods

Adds simple pillars and columns

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

Weedstone Random Mod Thing
chaosomnium

Originally meant to be a simple electronics type mod inspired by redstones, I messed around with the code after getting bored and got this weird mod, and now it's this thing. Enjoy I guess?

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

My White Block
Don

a white block

My Flooring
Don

A basic set of flooring

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

Rotting Wood
Polynium

Causes wood to slowly rot while exposed to water

Parcdeco
Floatland

adds grass-like nodes that have flowers

My Parkour
Don

Nodes for making a parkour track

Pink Lava
TenPlus1

Adds pink lava to certain depth of map with new mahogany obsidian block

Color Blocks
mt-mods

Contains colored building blocks.

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Autobuilder
limafresh

Adds a GUI for building cubes with customizable width, height, and length.

Colored Stone
Clyde

provides colored stones.

Dyeable Steel Blocks
nemokitty9

Allows Players to dye Steel for decorative blocks.