
Reaching Captain Level 25 in Chaos Zero Nightmare unlocks Memory Fragments, a key system for building a truly powerful agent. These fragments are essential for maximizing your potential in the late game, essentially taking a strong character and making them even stronger.
What are Memory Fragments
Memory Fragments are unique items you equip to your Combatants. They come in sets of 2 or 4 and boost stats or add special effects. Each set is designed to enhance a particular fighting style, like dealing high critical damage, improving healing, or strengthening defenses.

Memory Fragments are a new way to improve your characters beyond just getting better equipment. Each character can equip up to six of these fragments, with a dedicated slot for each one.
- Shock
- Suppression
- Denial
- Ideal
- Desire
- Imagination
Each item has a primary stat and several secondary stats. The primary stat is always the same, but the secondary stats are randomly determined, so no two items are exactly alike. Because of this randomness, consistently finding and improving items is a key part of the game’s long-term progression.
How to unlock Memory Fragments
To begin playing Memory Fragment, you first need to reach Captain Level 25. After that, the Simulation: Memory Fragments mode will unlock in the Simulation menu, letting you directly earn fragment sets.

Each simulation area has its own unique enemies, letting you focus on farming the ones that work best with your team. Each run costs 60 Aether, and you’ll have a better chance of getting rarer fragments as you increase the difficulty.
Challenges come in different difficulties, rated from 1 to 10. Completing harder challenges gives you better rewards, including special items called Particles of Memory, which are used to create powerful upgrades. You’ll unlock the crafting system at Captain Level 40, meaning once you reach level 40, you can both gather materials and craft the items you need to customize your character exactly how you want.
How to upgrade Memory Fragments
Improving your Memory Fragments is essential to maximizing your characters’ potential. Each fragment can be upgraded to boost both its primary and secondary stats, helping them perform at their best. While upgrading seems straightforward, it’s a surprisingly complex process that can greatly impact your success in the late game.

Upgrading your items requires Particles of Memory and other special materials, so managing your resources is key. Each upgrade directly increases the item’s main stat, steadily improving core stats like Attack, Defense, and HP. But the real power comes from unlocking substats – smaller bonuses that add extra benefits, such as increased critical hit chance, damage over time, ego recovery, or defense percentages.
Once you’ve maxed out all the minor stats on an item, any further upgrades will randomly improve one of those stats. This makes upgrading more interesting and less predictable. Each upgrade feels like a chance encounter – you could get exactly what you need, like a boost to critical damage for your attacking character, or you might get a defensive stat on an item you were hoping to make offensive.
How to get Memory Fragments in Chaos Zero Nightmare
Okay, so I’m really into collecting Memory Fragments, and there are a bunch of ways to do it and make them even stronger. Here’s what I’ve figured out about getting started…
1. Clear Simulation: Memory Fragments
The best way to collect Memory Fragments in Chaos Zero Nightmare is by playing Simulation: Memory Fragments. Each stage of the simulation drops specific items related to its theme, so it’s important to know which stage to play to get the fragments you need quickly.
The difficulty level you choose affects how often and what kind of fragments you’ll get. Higher difficulties offer better rewards, like rare and legendary fragments. Keep in mind that each attempt costs 60 Aether, so you’ll need to use your energy wisely.
To get the most out of playing, schedule your farming activities when you’re not tired, or use items that restore your energy during special events or times with bonus rewards. Regularly completing these challenges will slowly help you collect powerful gear for all your favorite characters.
2. Craft using Particles of Memory
Once you reach Captain Level 40, you’ll be able to create Memory Fragments yourself. This is a great way to get the specific equipment you’re looking for, rather than hoping for lucky drops. You can choose the exact piece you want by spending 100 Particles of Memory, or get a random piece for just 50.
The system really shines when you customize the Imagination, Desire, and Ideal slots. When crafting these, you can select the primary stat you want using Multidimensional Alignment Materials. This precise control lets you create exactly the character you envision and avoid wasting resources.
3. Dismantle Old or Unused Fragments
When you start collecting lots of duplicate or weaker Memory Fragments, dismantling them is a great way to manage your resources. Breaking down unwanted fragments gives you upgrade materials, which you can use to improve your current gear. Doing this regularly will keep a steady supply of materials flowing and help your team’s equipment stay strong enough to handle the game’s challenges.
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2025-11-11 08:12