Celestisynth

Celestisynth

A Minecraft mod with celestial weapons and stunning visuals for enhanced gameplay!

by
773.7K Downloads
forgeadventureequipmentmagic
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Screenshots

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About this Mod

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🔴 Project Status: CANCELLED (DUE FOR REWRITE)

!

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Some of the weapon's skills are heavily inspired by Demon Slayer: Kimetsu no Yaiba.

  • Revamp your Minecraft experience with Celestisynth! Unleash an arsenal of celestial-grade weapons, forged to perfection and boasting mind-blowing powers. Prepare to be mesmerized as you witness stunning visual effects and a customized player animation that adds a touch of elegance to the gameplay! 
  • ⭐ [ New version support: 1.20.1 ! ]
  • ⭐ [ New weapon from the recent updates: The Frostbound ! ]

Celestisynth player skill (Solaris)
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Important note [1.19.2 and 1.20.1 only]: Celestisynth's Weapons are only craftable using the Celestial Workbench! Use Just Enough Items to guide you!

⚔️ Weapon Guide:

Spoiler

Solaris

SOLARIS:

  • A flaming sword that can be used for movement and continuous damage.
  • Base material can be found in the nether.

Crescentia

CRESCENTIA

  • A shiny sickle that can be used for defensive buffs and continuous damage.
  • Base material can be found in caves.

Breezebreaker

BREEZEBREAKER

  • A sharp, tall, and slim sword that can be used for movement and burst damage.
  • Base material can be found anywhere between Y-100 and Y-320 at the top of high mountains.

Poltergeist

POLTERGEIST

  • An ominous heavy axe filled with the eyes of ender. Used for massive burst damage.
  • Base material mainly consists of the eyes of the ender and can be obtained through crafting.

Aquaflora

AQUAFLORA

  • A very light blade with a pointy tip adorned with plants and flowers. Used for area control and continuous damage.
  • Base materials mainly consist of plants and flowers that can be found around the overworld.

Rainfall Serenity

RAINFALL SERENITY

  • A laser-shooting futuristic longbow that can pierce through targets. Used for damage from long distances.
  • Base material can be crafted and brewed through the Crescentia's base material.

Frostbound

FROSTBOUND

  • A shimmering scythe that is seemingly made of ice. Used for area control and balanced damage.
  • Base material can be found in caves under cold biomes below Y-Level 60.

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📖 DEPENDENCIES + INTEGRATION:

Dependencies:

Integration:

  • Iron's Spells n' Spellbooks: Additional weapon skills (to be expanded upon in future updates, and eventually reworked with the arrival of an upcoming major update!)
  • Better Combat: Custom weapon attack animations!

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❓ F.A.Q

Q. When will you port the mod to [Non-Forge modloader]?

A. Likely not anytime soon, as the mod will be undergoing a couple of major updates in the near future. If you'd like to assist in starting the development process early on, feel free to hit us up on our Discord server!

Q. When will you port to [Newer version]?

A. When we can. Remember that this is a passion project, but we'll do our best to keep up with version updates!

Q. When will you backport to [Older version]?

A. Unlikely to happen in the foreseeable future.

Q. Will there be new content added into the mod?

A. Of course! The mod is constantly receiving new content updates and additional features/mechanics/optimizations! Stick around and see what we have in store!

Q. When would you implement the new 1.19.2 features to 1.19.4?

A. 1.19.4 and below are all discontinued content-wise, as we'll be focusing on versions 1.20.1+.

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Extra Credit:

  • KhanTypo: Helping fix a bug with the recipe book!
  • YeoXuHang: Assisting in a few parts of the early mod development process!

Available Versions

Celestisynth 1.20.1-1.3.4release
MC 1.20, 1.20.1forge
February 27, 2026
Celestisynth 1.20.1-1.3.3release
MC 1.20.1forge
August 18, 2025
Celestisynth 1.20.1-1.3.2release
MC 1.20.1forge
August 4, 2025
Celestisynth 1.20.1-1.3.1release
MC 1.20.1forge
November 10, 2024
Celestisynth v1.20.1-1.2.2release
MC 1.20, 1.20.1forge
April 4, 2024

How to Install Celestisynth on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Celestisynth". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.20.1, 1.20

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Celestisynth server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.

Is Celestisynth compatible with forge?

Celestisynth officially supports forge for Minecraft 1.20.1, 1.20. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Celestisynth – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Celestisynth consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

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Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
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Details

License
MIT License
Server-side
Required

Supported Versions

1.20.11.20