Update logs for previous versions can be found here

For first-time players, it is recommended to download the Shape Shifter Curse Minimal Mod Pack, which saves time configuring dependency mods

Also try Sinytra Connector Compatible modpack if you want to play with this mod on Forge.

Also try these wonderful fan-made extension mods as well!

Shape Shifter Curse Addon by MangZai-120

SSC Xu Addon by xu233333

Feel like the Feral Form isn't immersive enough? Try SSC True Feral Addon by fuukushima and challenge yourself to survive without human conveniences!

Update 1.9.0 - 1.9.1: New spider forms have been released!

New Form

Spider forms introduce a new silk-based ability system, allowing players to shoot web projectiles, create climbable web structures, hinder enemies, and gain stronger mobility options in later stages.
Added Spider-exclusive trinkets/tools gameplay through extra hand slots with different special effects.

Hint: Searching for cursed spiders in abandoned mineshafts.

(Yes, I know spiders in real life don't go through metamorphosis development… This is for gameplay reasons! )

Improvements

For the Sinytra Connector version, the form-specific Trinkets are now compatible with Curios and can be placed directly in the Curios slot.
Improved codex readability with support for longer scrollable text.
Added more advancement guidance for discovering and collecting forms.
Added vanilla recipe unlocks for several vanilla-form accessories and tools.
Improved permanent spider form and feral forms' footstep behavior to better match the form’s movement style.

Bug Fixes

Fixed missing Spider form abilities, including missing sounds/night vision behavior.
Fixed spiders incorrectly attacking during the daytime.
Fixed several Spider-related item, slot, rendering, and compatibility issues.
Fixed a few crash issues that could occur in specific situations.
Fixed missing form text, ability entries, and localization keys.

You can find previous update log here

Description

An unknown magical force has altered your body… When the Cursed Moon rises, certain changes begin to manifest within you.

Shape Shifter Curse is a mod that focuses on gradually transforming into different forms based on vanilla creatures under the influence of the "Cursed Moon" and "Instincts" mechanics, gaining their unique abilities and drawbacks - each form with independent models and (potential) special animations!

Features

Tested and Verified Gameplay Experience

Balance IS fun - each form's abilities and disadvantages have undergone multiple iterations and extensive testing to add interesting features while respecting the original game experience.

Carefully Designed Models and Animations

No need to just imagine - each form has its own model, along with matching status animations.

Create Custom Forms and Abilities

Add your own ideas - while there are some limitations, you can customize your own forms through data packs + resource packs, including models, unique abilities, instinct changes, and description texts.

Check wiki for more infomation.

How Do I Begin?

When players first join a world, they will receive the Book of Shape Shifter item - open it and follow the guidance in the achievements page.

Hint: Look for creatures emitting enchantment effects, and collect special drops from creatures during the Cursed Moon event.

Available Forms

Check the mod wiki here:

This mod is still in early development, with more forms to be added later.

Installation

Required Mods

• Azurelib
• Pehkui
• Satin API

Recommended Mods

• First-person Model: while not required for core functionality, it enables proper first-person models and animations for each form, significantly enhancing immersion.
• Rich Translatable Text: you can install this mod to display rich colored text in Book of Shape Shifter.
• Mod Menu: you can conveniently modify the configuration of the mod within the game.
• Leawind's Third Person: Third-person view is the best way to experience various form models and animations. The algorithm used by Leawind's Third Person mod allows comfortable and accurate aiming to any direction in third-person view, just like in first-person view, while achieving a cinematic feel.

Potentially Incompatible Mods

Mods that modify character animations (such as AnimationOverhaul, Emotecraft) may be incompatible. They might not cause logical conflicts, but using them together may break this mod's animations and models.

especially for feral forms...

Mods that modify combat mechanics (like BetterCombat) might cause issues with form abilities related to combat.

Server player optimization mods such as Too Many Players have known issues that can break form animations.

Code Contributors List: 

solunareclipse1, xu233333, donmor, wwlWang, MaxMobile-ru

A huge thank you for your generous work that helped enhance this mod!

FAQ:

My character skin got replaced?

After enabling mod content, player skins will be replaced by the mod's built-in skin (aka: the shifter). This is for artistic consistency of form models and respecting other players' characters.
You can retain your own skin by using the in-game command: /shape-shifter-curse keep_original_skin true

Does it work on servers?

Yes!
After version 1.0.5, the mod has achieved full server compatibility. If you encounter any problems, please submit an issue report.

I don't like First-person Model's first-person view

After version 1.0.62, form models can display correctly without FirstPerson mod(though we still recommend FirstPerson mod for enhanced immersion).

How do I transform into other forms?

Please check the mod wiki

Are forms permanent?

Update 1.0.4 added a new feature for permanent form

Please check the mod wiki

I lost Book of Shape Shifter item

You can craft a new one with Untreated Moondust + book.

Is this mod SFW?

Absolutely!

Special Thanks

Origins by Apace and Origin Furs by Feintha

This is my first mod project. Without them as foundation, these ideas would have been difficult to realize.