You can either contract the crimson curse through drinking The Blood item, or getting hit by monsters from the Crimson Court (5% each hit).

Think twice before accepting the crimson curse, and beware when fighting these creatures. Once you gain the curse you can only get rid of it through death, or by forcefully ending the curse once and for all.

The One true way to be rid of it is to eliminate the source, an elusive entity known as The Countess.

The Curse is splitted into 4 stages, each gives a set of effect that can drastically buff/hinder your combat capabilities.

Stage I. Bloodlust

First Stage of the curse, provide benefits to strength and speed alike. Drinking a vile of blood immediately brings you to this stage.

You will Stay on this stage for 20 minutes.

Stage II. Passive

Closest to no effect. 

You will Stay on this stage for 40 minutes.

Stage III. Craving

Buff to movement speed. At this point you should have at least possess 1 vile of the blood.

You will Stay on this stage for 60 minutes.

Stage IV. Wasting

Your time is up. Slowed and Vulnerable. Feed yourself with the precious blood to ensure survival.

You will Stay on this stage for 80 minutes, when the timer runs out... instant death.

The Blood

Drops From members of the Crimson Court.

Taking a sip brings out your instinctive crave for blood.

Blood Crystal

Formed by a diamond drenched in arthropod blood.

A valuable resource to craft a new armor set or a new weapon.

Recipes

Chevalier Smithing Template

Rare drop from the Chevaliers. Can be duplicated like other smithing templates.

Recipes

Chevalier Longsword

25% Chance to inflict Wasting effect on target for 5 seconds.

Killed Crimson Court mobs drops 1 additional "The Blood"

Recipes

Chevalier Armor

Armor once proudly worn by the Chevaliers before their tragic downfall.

If one has The Crimson Curse, this armor set makes bloodlust more beneficial, and protects those from the curse if not contracted yet.

Recipes

Neutral Mobs

Crocdilian Hatchling

-

This small critter can be encountered inside TheCourtyard biome, and will follow you when fed with enough Blood.

Aggressive Mobs

All Mobs add in the Crimson Court mod are labeled as Arthropods, do keep this in mind when enchanting your gears.

Pulsating Eggs

Randomly found in any biome. Whenever a player is near a Pulsating Egg, it has a chance to hatch and spawn a random Crimson Court mob. Alternatively, One can simply kill the Egg before it hatches itself.

Supplicant

-

The slowest and feeblest of them all.

Sycophant

-

Airborne Blood lusting Pests that spawns in swarms.

Manservant

-

These little rascals runs around cowardly when engaged... What is that under the lid he's holding?

Esquire

-

Nimble and witty, their footwork is superior in "all kinds of manner".

Chevalier

-

Known for their unbowed resilience, these creatures won't fall quite easily.

Countess

-

BOSS

-

The Source of The Crimson Curse, defeating this monstrocity will bring an end to this blasphemous disease once and for all.

(For now The Countess can be found rarely in The Courtyard biome)