PROJECT ONYX | A Universal Tower Defence Addon

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An addon that adds specialized raids that can be used in any world, in any difficulty, at any time! Do you like raids?? Like tower defense games?? I... they're ok. But that's not the point. Look. This addon adds a whole new block that allows you to play around with a custom-made game mode, which can be played in ANY WORLD! All you need is this new item, some gear, (and some patience), and you are in for sick rewards and an experience like no other!


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Welcome to Project ONYX, An addon that adds a special block dedicated to filling your world with different kinds of chaos, glory, and rewards (In a contained setting, of course). This addon aims to add more to do in your world while also giving you a fresh and unique experience. This block summons different kinds of beings across multiverses that orchestrate raids onto your world. Defend the pylon with all of your life, and take legendary loot from these different worlds!

Please keep in mind that this addon is in very early stages and a lot is subject to change.

The Basics:

Universal Pylon Recipe

Universal Pylon Block

This is a universal pylon, the foundation for anything you want to do in this addon. This pylon will allow you to summon many beings across different worlds and engage in combat with them. This section will teach you how these items work and allow you to and get to playing.

All raid types are going to be unique in their own standards, but there is always a few common denominators.

  • This block is activated by different pylon crystals. each crystal has a TYPE, and a DIFFICULTY tied to each one.
  • The TYPE of raid will control what kind of mobs spawn in the event. one may spawn robots and advanced beings, another may spawn dinosaurs.
  • DIFFICULTIES are... difficulties. each type of raid has different categories to challenge the player. for example, one type of raid may have a "standard" mode, then a "chaos" mode, and so on.
  • When raids start (Unless specified), portals will spawn at the north, east, south, and west of the pylon.
  • When a raid starts, anything blocking the mob spawners will be destroyed. And any holes in the ground will be filled up by an unbreakable block. Do not start a raid near anything important.

Universal Pylon Block With Question Mark

When you interact with the bottom block, a question mark will pop up. when that question mark pops up you are free to insert a crystal to start whatever raid you want.

Crystals are crafted in a bunch of different ways. Simpler modes being easy to craft, while harder ones being more complex to craft. although, the harder you push through the raid, the more materials you'll get back. Maybe you'll even make more than what you spent!

With all of this knowledge, you are ready to craft your first crystal!


With the basics out of the way, below contains all of the available raids. more types of raids, difficulties, and even special game modes will be added later down the line.

v1.0 / Onyx Raids
Onyx Raid / Difficulty: Standard


This raid is called the "Onyx" Raid at STANDARD difficulty. This raid consists of advanced, Robotic versions of different pillagers using command blocks and technology to fuel their rampage. They also seem to have controlled odd looking mutated bosses to fight along side them. Defeat these odd looking beefy villagers and take control of them!

Onyx Crystal

Onyx Pylon Crystal Recipe

In order to start a Standard Onyx Raid, you are going to need a... Standard Onyx Pylon Crystal. They are crafted with four Light Blue glass panes, two cyan glass panes, two iron, and a end crystal. One this crystal is crafted, you are able to activate a universal pylon and insert this crystal in.


Ok! You started a raid! …what now?

Onyx Pylon Crystal Block Starting Raid

In onyx raids, the pylon in the middle will regenerate health overtime. Your job is to make sure that the pylon crystal reaches max health. Once at max health, the final test will present itself.

Four Portals Spawning Animation

But in the meantime, four portals will spawn to the north, south, east, and west of this crystal which will spawn enemies to attack it. Speaking of which… who are they?



These are A.L.4.T.1.N.3‘s. Heavily modified vindicators buffed with technological plates that enhance their abilities. There are three different types:

  • Normal ones (middle), which run after and attack things like normal vindicators.
  • Brutes (Left), like normal ones, but have more health and do more damage.
  • Casters (Right), like evokers, but a bit more dangerous. They are way more aggressive with their spells, plus they spawn more non-caster counterparts.

These three types of mobs will spawn in the first phase of this event. They’re a little overwhelming at first, but easy once you get used to them. Although, to make it easier, they DO have some drops.

Two Crystals

A.L.4.T.1.N.3‘s have a 25% chance each kill to drop one of two crystals. each one giving rather instant healing or resistance when used on the pylon.

​​​​​…first phase? what do you mean first phase?

Onto sub bosses!


When the pylon is halfway regenerated, regeneration will stop and summon one of four sub-bosses. Each boss being a wall you have to take care of before continuing.

One of four Sub-Bosses can spawn:



EVO-PUPP3T is a robotic version of an odd-looking creature chained up and in a suit. Looks aside, he’s pretty dangerous.

When attacking, he has one of two attacks. One he will casually attack you like any other mob. The second one being that he summons more backup. Maybe not dangerous, but keep in mind that while you’re fighting the boss, mobs are still rolling in. So make sure to keep an eye on the pylon!



EVO-PUPP3T has a 20% chance to drop C.H.1.P, a blade which allows you to turn the tide on raids.

When used, the blade will cause all A.L.4.T.1.N.3‘s in the immediate area to pop their heads off and attack mobs next to them.

This ability can only be used on onyx robots.



EVO-MASTER is a strange-looking, four-armed beast that floats around.
…he attacks like any normal mob, but he hits like a truck, so be careful.



EVO-MASTER has a 20% chance to drop “D1SCIPLIN3”, a blade that gives you the opportunity to smack some sense into some robots.

When a A.L.4.T.1.N.3 is hit, it has a chance to stun them. On a successful stun, they will immobilized in place. However, if the stun fails they will turn angry and be buffed.

This ability can only be used on Onyx robots.



EVO-TROX is a human covered in very special equipment. He carries a shield with an equalizer on it, and is pretty geared up.

He attacks like normal mobs. However, when struck, he has a chance to block. If you hit him while he’s blocking, he will inflict heavy damage back to you.



EVO-TROX has a 20% Chance of dropping the “B00G1E” blade. A blade that gives nearby A.L.4.T.1.N.3‘s a dance break.

On use, puts nearby A.L.4.T.1.N.E robots in a dance break state. When in this state, they are temporarily immobilized.

This ability can only be used on Onyx robots.



A.L.4.V.4.L.K is a robotic Valkyrie wrecked and destroyed by illagers. It seems that along with all the damage, she is for some reason fighting with them now.

When damaged, she has a chance to call for backup.



A.L.4.V.4.L.K has a chance to drop L4ST R3S0RT, a blade that makes EVO-Valkyries into sore losers.

On use, causes all nearby Onyx Valkyries to explode. As you probably know, This explosion is not friendly. So be careful where you use it.

Enemies, Continued

When the Sub-Boss is defeated, the pylon will continue to regenerate health. You are now halfway through the game mode. But the danger is not over yet. There’s a new enemy wandering around.

Evocation Valkyrie and Evocation EXP-Valkyrie

Now that the sub boss is defeated, you have a new enemy to watch out for. Meet the Evocation Valkyrie, and the Evocation EXP-Valkyrie.

The normal versions of this mob will attack just like normal mobs. However, on death they have a 1/4 chance of turning into a EXP Evo Valkyrie.

When these valkyries get close to their target, they will explode like creepers. However, unlike creepers their exploding state cannot be canceled.

Main Boss

Alatar, Usurper of Scrap.

Alatar, Usurper of Scrap.

When the pylon is at full health, the main boss will spawn. Meet Alatar, Usurper of Scrap.

Alatar is a mutated evoked who found the full potential of command blocks and took it to his advantage, turning himself and others in his clan into robotic beasts.

Alatar has two main attacks:

  • He will melee attack the player
  • He will summon backup

While fighting Alatar, keep in the back of your mind that the pylon is still getting attacked in the background. Keep up the balance of fighting Alatar and keeping the pylon safe, and the raid will be complete.



On death, Alatar has a small chance of dropping ONYX, a sword that allows ultimate control over onyx pylons.

When used near a Onyx Crystal Pylon, a random buff is given to it, when an enemy is struck, nearby items are teleported to the user.

(This ability can only be used during ONYX Raids)


Loot Screen

When the raid is completed, a loot screen will pop up showing all the rewards you recieved.

As you do the raid, there are multiple factors that can allow you to get more loot, or even LESS loot. All possibilities can be found here:

  • 2X Rewards for finishing the event with pylon above 90% Health
  • 2X Rewards for finishing the event with pylon above 75% Health
  • 2X Rewards for finishing the event with pylon above 50% Health
  • 10X Health for finishing the event with pylon below 10% Health

At the moment, the pylon rewards give you multiple instances of A.L.4.T.1.N.3 loot. More loot will be added in the future.


Raid Failing Animation

If you fail a raid, the crystal will shatter and no rewards will be dropped. You will also get a mini menu telling you where you failed.

Final Notes:

  • This addon will be getting lots of updates and fixes down the line, so if you liked what you see here, make sure to stick around!
  • You are free to look at / use my code as long as credit is given
  • Socials are in my creator profile if you would like to follow along
  • Thanks for looking!
  • Sound effects are gathered from Splice.com
  • This Project is healivy inspired by the Dungeon Defenders 2 Event from Terraria.

Updated on November 30

Project Onyx: Update v1.0.1

All content log errors have been fixed.

Gameplay Changes:

  • Unusable Universal Pylon has been removed from the creative inventory.
  • Usable Universal Pylon added to the creative inventory.
  • Universal Pylons are now Immune to explosions.
  • The Anticheat block is now transparent, as initially intended.
  • Anticheat blocks no longer give you a speed boost.
  • Sound cues have been added for boss spawns.
  • Anticheat has been added to prevent certain mobs from being used on the pylon Crystal*
  • *You can disable this anticheat by using the ONYX blade.
  • Active pylons now glow.
  • Mob portals can no longer levitate.
  • Gave the Anticheat block an animation.

Mob Changes:

  • Added Death Effects to sub-bosses and Evo-Alatar.
  • Updated mob render controllers.
  • Dubtrox now consistantly performs his thorns attack.
  • EVO-PUPP3T's speed has been slightly increased.
  • EVO-PUPP3T's A.L.4.T.1.N.E summon attack has been removed.
  • Sub-Boss sounds have been restored.
  • Adjusted A.L.4.T.1.N.E's walk animation

Weapon Changes:

  • The "CH1P" blade got some much needed polishes.
  • "CH1P" Cooldown has been reduced 20 ---> 10.
  • "B.O.O.G.1.E" Cooldown has been reduced 20 ---> 10.
  • The "D1SCIPLIN3" blade stun chance has been increased.
  • "D1SCIPLIN3" Can no longer enrage mobs other than A.L.4.T.1.N.Es.
Download links
[RP] Project Onyx | RP
[RP] Project Onyx | BP
All Release Versions
Supported versions
1.20.30 1.20.0 1.19.50 1.19.0
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