XBlocks
GamingAssociation39

Additional blocks for decoration/building

pkarcs
TumeniNodes

Adds arched doors

XConnected
Sokomine

connected nodes like xpanes, xfences, walls

Palisade
SFENCE

Add craftable palisades in many styles. Hades Revisited is supported.

Bridges and handrails
Sokomine

Self-building bridge, small bridge building and handrails

Rainbow Source
Shara

Adds coloured water.

Simple Models
AntumDeluge

Very simple models.

Foodblocks
Blockhead

Solid cubes of food for mass storage or building.

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Abripanes
Shara

Adds faintly glowing coloured glass panes which can be used for stained glass windows or for gentle lighting.

Mylandscaping
Nathan.S

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

Alien Tools
chaosomnium

Alien Tools Mod for Minetest - adds Alien Tool, Shield, biome, etc

Stained Glass
andersje

Adds various stained glass blocks, originally by doyousketch2

Solid Color Blocks
cheapie

Colorable (via unifieddyes) solid-color blocks.

Pontoons
FaceDeer

A "floating" block that can be placed at the surface of a body of water without needing to build pilings first.

Glass
AntumDeluge

Enhances default glass to make it colorable.

Angled Stairs
TumeniNodes

Adds angled stairs to the Minetest Game.

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options to Minetest.

Morebricks
CalebJ

Adds an assortment of new bricks to build with.

Letters
Amaz

Adds a letter cutting tool with letter "signlike" nodes.

Arrow Boards
cheapie

Arrow boards for road construction

Automatic Cave Lighting
Hybrid Dog

Add two chatcommands to automatically light up dark places (e.g. caves) with lighting nodes such as torches.

Cottages for Hades Revisited
SFENCE

Build medieval cottages with furniture, window shutters and roofs, thresh your wheat.

Australia
demon_boy

Adds a wide variety of Australia-themed biomes and content

Terraform
x2048

Adds terraforming tools to your creative toolbox (WIP)

PaleoTest for Hades Revisited
SFENCE

Adds Not Only Prehistoric Fauna and Flora to Hades Revisited.

Xblox
StarNinjas

New blocks!

Framed glass
RealBadAngel

Framed glass adds glass nodes with a frame that connects automatically to neighbouring nodes

Unifiedbricks
wowiamdiamonds

This mod allows the user to re-color default bricks using Unified Dyes, and provides some pattern variations as well.

Bouncy Bed
MeseCraft

Simply makes beds bouncy.

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?

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Abriflame
Shara

Adds coloured fire through use of fire starter tool.

Fake Fire
Semmett9

Adds in a block that looks like fire, but dose not have the risk of burning down your creations.

Itemshelf
zorman2000

Generic item shelf with 3D items on display

Nyan Cat
rubenwardy

nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Portal gun
AiTechEye

Portals and stuff

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.