VoidTree Altar Help

Table of Contents

What do you do once you’ve got full netherite and all the good toys? You build altars to the mysterious gods of VoidTree and sacrifice to earn their blessings.

Altars are an enormous scavenger hunt that will take you all over the world looking for items. Expect to spend some time reading the Minecraft Wiki to figure out where and how to get all the things.

Agriculture Altar with bonus Solly
Solly stands on a level 1 Agriculture altar. Photobomb by Squid and Pig.

The altar system is 100% custom code and comes with the usual caveats: there will be bugs, unintended consequences and frustrations when your altar suddenly decays without warning. Report bugs in Discord and have patience while we sort them out.

Altars Work with Towny

VoidTree is all about Towny. If you want your own altar, you need a town. A town can have one of each altar type, described here. With only a couple of exceptions, altar boons are active inside the town limits for players there, whether or not they are members of that town.


  • If you select Blessing of the Rancher, every player who kills livestock inside your town gets extra drops, whether or not they are a member of your town. You do not get extra drops if you are in the wilderness or in some other town.
  • Blessing of the End is special. It protects every member of your town from getting lost in the Void even if your town is not in the End.

Building an Altar

Unactivated Agriculture Altar
An altar that has not been activated. Note the lightning rods.

Altar themes

An altar’s theme controls the materials you use to construct your altar and what sacrifices the gods will demand.

There are currently four altar themes. The materials needed to build each of the themes are described on this page.

To build a valid altar, you need:

  • Every item in a specific list of materials. You can have more blocks if you want, but not fewer ones. For instance, an Agriculture altar requires at least:
    • 25 Acacia Planks
    • 3 Acacia Stairs
    • 27 Acacia Fence
    • 9 Hay Blocks
    • 1 Bee Nest (Note: not a bee hive. A bee nest.)
    • 4 Lightning Rods
    • 1 Campfire (the interface block)
  • All required blocks must be within five (5) blocks of the campfire.
  • All blocks must be placed in chunks owned by your town.

The pictures shown on this page are a suggested way to assemble the blocks, but you can get creative and stack them any which way. Just make sure you put the interface block (the campfire) some place you can easily reach.

Who can interact with Altars

The following people can activate an altar and select boons:

  • A town’s Mayor
  • Anyone in a town who is assigned the rank High Priest (/t rank add <name> high-priest). A town may have multiple High Priests.

The following people can make sacrifices at an activated altar:

  • Everyone, whether they are a member of your town or not.

Activate your Altar

Right-click on the interface block (campfire) and admire the special effects. That’s it! The lightning rods, having done their job, are replaced by candles.

You can now click on the interface block to receive the gods’ instructions.

The Altar Interface

Note: the altar interface is almost exactly the same as the interface you know and love from /shop. Slots you can’t interact with yet are indicated by barrier blocks. If you’re in the boons selection page, a barrier block (red circle with a line through it) in the lower-rightmost corner sends you back to the previous menu.

The book in the bottom center gives you a link to this page for handy reference.

Level 0 altar interface
Level 0 altar interface. The gods want baked potatoes.

The hopper shows you your altar level (from 0 to 4) and the sacrifices required to satisfy the gods, and later, to level up your altar.

Sacrifice types and numbers

Sacrifices are themed. That is, the agriculture altar will require items that you can grow and harvest.

While the exact number and type of items will probably change as we go through rounds of testing, we put some thought into into how much work the players must do to please the gods (and Duck would especially like to thank Solly for turning Duck’s constant stream of suggestions and amendments into code).

Some factors in determining sacrifice quantities include:

  • How hard is it to get the block or item? Lots of blocks can be purchased at /shop, and most of the rest can be grown or located without access to a rare biome.
    • Mycelium costs $8/block at /shop, but you only have to buy one block. If you put mycelium near plain dirt blocks, those blocks will turn into mycelium.
    • Bee nests are hard to find. But if you plant a tree in a plains biome, there is a 5% chance it will spawn with a bees nest. You needed more wood anyway.
  • The more members your town has, the greater the quantity of items you must sacrifice.
  • Items that stack are required in higher numbers than items that don’t stack. The gods know it’s more work to carry cakes than baked potatoes.

Note: If a sacrifice requires buckets (i.e. buckets of milk), you get to keep the buckets. The same is true with other sacrifices that involve containers, such as mushroom stew.

Level 1 Altar Interface
Level 1 Altar Interface

If you click on the sacrifice icon (in this case, a baked potato), the altar will take all of that item you have in your inventory up to the total number required to complete a sacrifice. That means that multiple people can contribute in multiple trips.

Once you have fulfilled a sacrifice, that icon will change to another sacrifice.

Right now an altar may request the same sacrifice twice in a row.

Altar Levels

A level one altar lists one sacrifice that you can make to level up your altar. Once your altar has leveled up to level 1, you may choose one boon.

Agriculture altar rank 1
The interface for a level one altar

This altar has leveled up to level 1. A boon slot has been unlocked. In the altar interface, the lower left barrier block has been replaced by a beacon. Click the beacon to select the boon your town will receive.

Note: While we used a beacon for an icon, boons do not work exactly like beacon effects. Do not be fooled.

You can tell at a glance what level your altar is. There is one candle in each candle cluster for each level. A level 4 altar will have clusters of four candles.

Altar levels higher than 1

A level 2 altar gives you a choice of two sacrifices to fulfill and two boons you can select. You may select either of two sacrifices to fulfill, which means that if one if them is more difficult or expensive you have an opportunity to skip it.

LevelSacrifices Required to Please the Gods (maintain level)Sacrifices Required to Level Up Altar

The Boons

If you altar is at least level 1, you can select the beacon icon and get a page of beacons you can select to get the boon you want. Mouse over the boons to get the flavor text. For more information on how a boon works, see below or right-click on the boon and see the text description in chat.

Select an altar boon
Select an altar boon

Note the barrier block in the lower right square. It takes you back to the main altar menu.

We have a long list of possible boons that may be implemented in the future. For testing purposes we picked a few that are easiest to implement and test, and (we hope) fun for our players. Unless otherwise specified, a boon only works inside the borders of your town.

  • Blessing of the Harvest: The gods bless your crops. They will grow faster and can be harvested sooner.
  • Blessing of the Nether: The gods protect everyone in your town from the flame. No players or mobs in your town will take damage from fire, lava or hot floors. This blessing works even if your town isn’t in the nether. Make a lava hottub!
  • Blessing of the End: The gods protect everyone in your town from the Void. If you fall into the Void, you will wake up in bed. This is one of the only blessings that is active for town members even if they’re not inside the town borders. Make sure you have a bed set before you try it. Note: There is a ten second cooldown, so don’t do it twice fast or you die in the Void.
  • Blessing of the Rancher: The gods bless your herds. Whenever a livestock mob dies, you get extra drops. Supercharge those meat and leather farms!
  • Blessing of the Sentinel: The gods protect your small livestock. Your livestock is protected from wolves, foxes, cats, and axolotl. This may not look like a big deal, but if you have ever logged in to an empty bunny hutch you’ll see the appeal.
  • Blessing of the Forge: The gods bestow power on your forge. Your items smelt faster and your fuel lasts longer.
  • Blessing of the Beekeeper: The gods bless your hives. Inside your town bees are never hostile. You have a chance for two bees when you breed them and a chance of extra bee products when you harvest by hand. Trivia note: it is not possible to make these bonuses apply to automated farms. We checked. Limitations of the API.
  • Blessing of the Freeze: The gods bless your town with eternal winter. Ice does not melt. Ice skating in the desert!
  • Blessing of the Thaw: The gods bless your town with spring on the coldest days. Your town has no snow or ice even in cold biomes.
  • Blessing of Peace: The gods bless your town with an aura of peace. Inside your town normally hostile mobs will not attack players. If you attack a mob, however, it will retaliate. This boon does not protect your villagers from zombies.
  • Blessing of Pest Control: You were created by the sages; return to your dust. No more golems or cats will spawn in your town. Existing golems and cats remain.
  • Blessing of the Slime: Boing! Boing! Boing! You bounce instead of taking fall damage.

Changing boons

Right now the mayor or high priest(s) can change the boons at any time to make testing easier and more fun. Later you’ll only be able to change the boons at specific points.

When the Gods Are Displeased

Breaking an altar

If you break part of an altar, the altar becomes inactive. Don’t worry–if you put the blocks back the altar will resume functioning as if nothing happened. A broken altar’s boons are still active, but you can’t open the interface.

Note: if you break the candles on an altar, replace them with candles, not lightning rods.

Altar decay

So you have a leveled-up altar. You thought you were done sacrificing, didn’t you?

The gods require a certain number of sacrifices each week, every week, or your altar will decay, one level at a time. When your altar levels up, you have another week before it will decay.

Unclaiming an Altar Chunk

If you unclaim an altar’s chunk or allow your town to disappear, the gods will be displeased. Your altar’s boons will immediately stop working and all online players in the town will get a message informing them that the town’s altar was just unclaimed.

The altar will not be accessible until its chunk is claimed once again. Once the chunk is reclaimed, a mayor or high priest will need to activate the boons once again. No additional sacrifices are needed.

Altar Information Commands

A command, /altar, gives you information about altars in your town.

  • /altar and /altar help tell you what subcommands you can use.
  • /altar log tells you about recent events at your altars, such as sacrifices, level-ups, and boon changes.
  • /altar listsacrifices or /altar ls tells you what sacrifices your altars want. This command is handy if you go shopping for sacrifice items and forget what your altar says.
  • /altar status tells you your altar level, what boons you have selected and when your altar will be evaluated next.