WallMaster

Two corners. One preview. Build it safely.

Wallmaster is a survival-friendly building tool for creating walls, floors, and solid volumes from two selected corners.

Preview the complete structure before placing it, confirm that you have enough materials, and build it in seconds. Wallmaster spends blocks from your inventory, avoids obstructed spaces and entities, and works in both single-player and multiplayer.

Build with confidence

Live Ghost Preview — See the entire result before committing.
Wall Mode — Create vertical walls between two corners.
Floor Mode — Fill horizontal surfaces quickly.
Fill Mode — Build complete rectangular volumes.
Inventory-Aware Building — Survival mode consumes the selected blocks from your inventory.
Safer Placement — Obstructed positions and entities are skipped.
Super Sponge — Select and clear bounded volumes of water without placing dozens of vanilla sponges.
Configurable Limits — Adjust construction limits, preview behavior, and other safety settings.

Designed for survival worlds and modpacks

Wallmaster is intended to speed up repetitive construction without replacing resource gathering. You still collect the blocks—you just spend less time placing them one at a time.

Select two corners. Review the blueprint. Build.

Features

Builder's Wand — Wall / Floor / Fill modes with live ghost preview and HUD
Mode carousel — always visible while holding the wand
Super Sponge — dry a rectangular water volume (strips waterlogged blocks by default)
Underwater builds — water is replaceable by default; lava stays blocked unless enabled
Safe by design — skips solid obstructions and living entities; full-cube materials only
Advancements — WallMaster tab for crafting, building, filling, and drying milestones
Configurable — server limits/safety + client preview cosmetics

How to use — Builder's Wand

Wand in main hand, material in offhand
Hold Left Alt + scroll to choose Wall, Floor, or Fill (rebind under Controls → WallMaster → Cycle Build Mode)
Right-click a block face to set the first corner
Aim to size the ghost, right-click to lock the far corner
Right-click air to build
Sneak + right-click to cancel

Mode decides the shape — not which face you clicked.

How to use — Super Sponge

Hold the Super Sponge
Pick two corners the same way
Right-click air to dry water inside the volume

Crafting

Builder's Wand — 2 iron ingots, 1 redstone dust, 1 stick
Super Sponge — 3 iron ingots, 1 sponge, 1 redstone dust

Requirements

Minecraft 1.21.1
NeoForge 21.1.234+
Java 21
Required on client and server

Notes

Works well in large packs like All the Mods 10. Preview hide/style keybinds ship unbound so they don’t fight crowded keymaps.