Hello Chaos Zero Nightmare players. You might be starting your journey in this game and looking for the easiest way to Chaos Zero Nightmare top up Crystals. If you want some more crystals to level up, it is a must to know where to buy the cheapest Crystals, what to spend them on, and how to use Undetermined Ego Crystals in a smart way. So, let us help you with this Chaos Zero Nightmare top up guide.

Why Top Up Crystals in Chaos Zero Nightmare?
Crystals play an important role in your progress because they help you grow your team and move through the early and late game. You will mainly use Crystals for a few key purposes.
- Rescue Requests let you pull Combatants who do your main damage and Partners who support your team.
- the Exchange Shop allows you to buy Rescue Anchors for focused pulls or Signal Amplification Anchors for banners that offer higher pull rates.
- Aether Recovery gives back stamina so you can farm materials inside Simulations such as Basin of Hyperspace.
You can still earn free Crystals from daily missions, events, and login rewards. Rerolling on your first day can even give you more than 10000 Crystals if you aim for it. Still, topping up gives you access to first purchase bonus rewards and strong monthly packs.
Official Top Up: Safe but Pricey
If you want to buy Crystals inside the Chaos Zero Nightmare game, you can do it directly through the shop. You only need to tap the Crystal icon and enter the purchase screen. The in game shop gives you a first purchase double bonus for each bundle. This means the first time you buy a specific pack, the amount of Crystals you receive is doubled. After that, the pack returns to its regular amount.
So, here is how the bundles and their prices goes on:
| Bundle | Base Crystals | First Buy (Double) | Price |
| Small | 60 | 120 | $0.99 |
| Medium | 300 | 600 | $4.99 |
| Large | 980 | 1,960 | $14.99 |
| XL | 1,980 | 3,960 | $29.99 |
| XXL | 3,280 | 6,560 | $49.99 |
| Mega | 6,480 | 12,960 | $99.99 |
Remember that using the in game shop gives you a quick and safe way to buy Crystals. You do not need to share your account details and the Crystals arrive instantly. The downside is that you pay full price through Google, Apple or STOVE billing. It works well if you only want a single quick purchase, but it is not the best choice if you want the lowest prices.
How to Top Up Cheap Crystals
For any player who is seeking for the cheapest Crystal top up for Chaos Zero Nightmare, Enjoygm gives you the best value. Their discounts usually reach more than twenty four percent and sometimes go up to twenty six percent during promotions. You get fast delivery that usually completes in less than five minutes and the payment system uses strong security protection.
Players from around the world trust the service for its full time customer support and the system that keeps your account safe. And most importantly, Enjoygm works smoothly with the Global server and is widely used for reliable top ups at lower prices.
Step-by-Step Enjoygm Top Up (Global Server)
- Visit Enjoygm Chaos Zero Nightmare.

- Select package with the amount of crystals you need
- Choose Login Top-Up > Enter:
- Login Method: Google/Stove/NAVER/etc.
- Server: Global.
- UID: In-game, tap avatar (top-left) > Copy Player ID.
- Account email/password (secure temp login).
- Pay via card/PayPal/crypto and the service supports multi-currency.
- Instant: Crystals hit in-game mail quickly, and if in need, you can log out and then re log. .
- Support: If any issue occurred while doing your top ups, remember that Enjoygm carries 24/7 chat for all your issues.
Pro Tip: If you plan to spend a little, begin with the Coronomicon Monthly package on Enjoygm. It costs about $3.82 and gives you 3000 Crystals over time. You receive 90 Crystals every day, which adds up nicely. When you combine this with your first time double bonuses, you can reach 55 to 70 pulls for every one hundred dollars you spend.
Best Items to Buy in the Chaos Zero Nightmare Shops
There are so many Chaos Zero Nightmare items you can just buy with crystals but still, there are some you must give priority on. You get the most out of your Crystals when you follow the following list priorities, and that keeps your progress steady and avoids wasting resources.
Memory Archive Shop
This is the strongest shop for every player because it uses Moments, which you earn passively while doing Rescues. Focus on these items.

- Traveler tab gives five Rescue or Signal Anchors. Each one costs 150 Moments and resets every month. These pulls are extremely important.
- Partner tab gives a five star Partner copy for 300 Moments.
- Combatant tab lets you choose a five star Memory Code for four hundred Moments or buy more Anchors if you prefer.
Coronomicon Monthly Package
Buying this on Enjoygm for about three dollars and eighty two cents rewards you with three thousand Crystals once you complete the daily logins.
Zeronium Shop
Use your Zeronium to buy Undetermined Ego Crystals, four star Partners or Alignment materials. Undetermined Ego Crystals cost 100 Zeronium each and should be one of your main goals once you get your important Partners.

Exchange Shop
You can spend 160 Crystals to get one Rescue Anchor or 10 Signal Anchors. This is useful when you want to pull on limited banners.
Remember that free to play players should place Anchors above everything else, while spenders get the best value from the monthly pack and first time purchases.
How to Get and Use Undetermined Ego Crystals
Undetermined Ego Crystals in Chaos Zero Nightmare act as replacements for boss materials when you unlock Potentials. These are very helpful for keeping your Combatants growing every month.
So, where to get them? These are your best methods:
- Zeronium Shop sells them for one hundred Zeronium each. Buy them after picking up your important Partners.
- Arkhianon Supply rewards them inside the Battle Pass.
- Zero System drops them from levels eight to ten, so clear Normal mode first.
- Events and compensation sometimes offer free ones.
- You can farm extra Zeronium from the Battle Pass and daily missions.
How to Use Them
- Open the Combatant screen and choose the unit you want to improve.
- Go to the Potentials section.
- Pick the locked node and use an Undetermined Ego Crystal as the needed material. This replaces the weekly boss item.
- Confirm the upgrade to unlock your new stats and EGO skill boosts.
These are extremely helpful for reaching endgame Potential levels. If you need more, you can buy Zeronium packs to maintain a steady supply.
Getting Extra Free Crystals
You can also have some extra free crystals with Chaos Zero Nightmare codes. Those can be checked inside the game through Menu then Redeem. Large events, game celebrations and specific updates have given more than 1000 free Crystals in the past. So, you can also reroll if you want a five star selector at the start.
Pro Tips to Speed Up Your Progress
- If you spend between five and twenty dollars, the Enjoygm Monthly package combined with Anchor purchases builds a strong account on your first day.
- The official shop has no risk at all. Enjoygm has proven to be safe, but you should still keep a strong password on your account.

- Push the Zero System to level ten for level fifty rewards and keep farming Ark City for extra materials.
- Buying through Enjoygm turns $10 into 2000 Crystals. If you want faster power growth, this is a strong option to consider.
Conclusion
So, now you know where to top up the Chaos Zero Nightmare gameplay to the best. As you can see, Enjoygm shines better than the other choices of option for more crystals. So, join in and it is time to advance more through your gameplay.