Cursed Crystals are one of the most important progression currencies in Jujutsu Zero. Many players underestimate how valuable they are, but they are actually used for several key upgrades and purchases that help strengthen your character.
If you want to progress faster, farming Cursed Crystals efficiently should be one of your main priorities. This guide explains the best farming method, which difficulty to run, and how to maximize your crystal gains.
Why Cursed Crystals Are Important
Cursed Crystals are not just a small side reward. They are part of the game’s main progression system and can be used to unlock useful items and upgrades from special shops.
Because the shop inventory rotates regularly, having a large supply of crystals allows you to buy important items whenever they appear.
The Best Game Mode for Farming Cursed Crystals
The best place to farm Cursed Crystals is Investigations.
To enter this mode, talk to the Investigation NPC located at spawn in front of the leaderboards.
Investigations work like dungeon runs rather than standard boss fights.
Instead of fighting one enemy, you will:
- Clear several rooms of enemies
- Progress through multiple stages
- Fight a final boss at the end
This structure is important because the speed of your run directly affects your rewards.
Rewards From Investigations
Investigations provide several types of rewards at the same time, which makes them extremely valuable.
You can earn:
- Cursed Crystals
- Experience
- Yen
- Boss crates
- Eido crates
Even if your luck is poor with one reward, you will still gain value from the others.
Investigation Difficulty Rewards
Each difficulty level gives a different minimum amount of Cursed Crystals.
Easy Difficulty
Minimum reward: 35 Cursed Crystals
This mode is designed for weaker builds or newer players.
Medium Difficulty
Minimum reward: 65 Cursed Crystals
Medium difficulty offers a solid balance between difficulty and rewards.
Hard Difficulty
Minimum reward: 100 Cursed Crystals
Hard difficulty provides the highest base reward but also requires stronger builds.
The Most Important Farming Rule
Many players assume that Hard difficulty is always the best option, but that is not always true.
The real goal is not the highest crystal reward per run.
The real goal is the highest crystals earned per minute.
If Hard difficulty takes too long to clear, you may actually earn crystals slower than running Medium or Easy multiple times.
How Speed Affects Rewards
Investigation rewards increase depending on how fast you complete the dungeon.
This means faster runs give better rewards.
Because of this system, efficient farming depends heavily on clear speed.
If your runs are slow, your crystal farming will also be slow.
Choosing the Right Difficulty
The best difficulty is the one you can clear quickly and consistently.
Use this simple rule when choosing a difficulty.
Run Hard Difficulty
If your build is strong and you can clear Hard without dying or slowing down, this difficulty provides the best crystal rewards.
Run Medium Difficulty
If Hard runs are too slow or you struggle with the boss, Medium may actually provide faster crystal farming.
Run Easy Difficulty
If your character is still weak or your survivability is low, Easy runs are still a good option because fast clears will outperform slow Hard attempts.
Build Tips for Faster Investigation Runs
Your build should focus on three main things.
Room Clear Speed
Abilities that hit multiple enemies help you clear rooms faster.
Boss Damage
Your build should still deal strong single-target damage to defeat the final boss quickly.
Survivability
If your character dies frequently, your farming efficiency drops significantly.
Balancing damage and survival is the best approach.
Investigation Shop and Crystal Spending
Investigations also connect to a special Investigation Shop.
This shop rotates items periodically, usually every two weeks.
Because of this rotation system, it is important to manage your crystals wisely.
Sometimes saving crystals is better than spending them immediately if a better item may appear later.
Why Investigations Improve Your Account Over Time
Investigations are valuable not only for crystals but also for long-term progression.
Because you earn Eido crates and other rewards, farming this mode helps you upgrade your character while continuing to farm crystals.
This creates a cycle where stronger gear makes future Investigation runs faster.
Best Crystal Farming Strategy
The most efficient farming strategy is simple.
- Go to the Investigation NPC at spawn.
- Select the highest difficulty you can clear quickly.
- Focus on fast room clears and smooth boss fights.
- Improve your build over time to move into higher difficulties.
As your character becomes stronger, your farming speed will increase significantly.