Chaos Zero Nightmare half-anniversary is here with a bunch of freebies and more new additions. If you are now trying to jump into it, here we bring everything about this anniversary today. The Half-Anniversary celebration marks six months since launch with generous rewards, game-changing quality-of-life updates, and an exciting new roguelite mode that’s already shaking up endgame play. Let’s break it all down so you can make the most of the event without missing a single Crystal or selector ticket.
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Chaos Zero Nightmare Half-Anniversary
When Does the Chaos Zero Nightmare Half-Anniversary Start?
The official Half-Anniversary kicks off on April 22, 2026, but the real party begins with the major patch and events on April 29, 2026. There is a 10-day attendance event running from April 29 through May 8, giving you daily logins packed with rewards. Most limited-time campaigns and the new content drop alongside with this patch, so you better mark your calendar and prepare your stamina because the next few weeks are going to be packed with progress.
Chaos Zero Nightmare Half-Anniversary Rewards Overview
You can already see that this celebration is one of the best half-anniversaries in recent gacha history, and that happens for a good reason. Here’s exactly what you’ll earn as CZN half anniversary rewards:
2 Free 5-Star Selector Tickets are offered (1 Combatant + 1 Partner) via the 10-day attendance event starting April 29. These selectors are limited to launch-era 5-stars only, so you can finally grab missing powerhouses like Veronica, Mei Lin, or strong support options without relying on RNG.
Chaos Zero Nightmare Half-Anniversary Rewards
70 Free Pulls on the standard (permanent) banner are available which is enough for a full pity cycle is.
New 200-Pull Selector Mechanic added to the standard banner with the anniversary celebrations. After 200 pulls, you get to choose your desired non-limited character from the pool (up to Diana’s release, Sereniel excluded). This is huge for building a reliable roster.
1,000 Crystals from the special Half-Anniversary coupon code will be there and it is claimable until June 30, 2026. Additional event currency, materials, and account XP push the total free Crystals well over 6,000.
Extra daily free permanent rescues and festival missions that reward even more resources are also there based on Aether consumption.
Key Stats of Rewards
| Reward Type | How to Obtain | Key Details | Best For |
| 5★ Combatant Selector | 10-day attendance (Day 10) | Launch 5-stars only | Filling DPS or draw gaps |
| 5★ Partner Selector | 10-day attendance (Day 10) | Launch Partners only | Support/healing needs |
| 70 Free Standard Pulls | Event login & daily missions | Use after 200-pull selector unlocks | Pity + targeted pulls |
| 200-Pull Selector | Standard banner progress | Choose any eligible standard unit | Long-term roster building |
| 1,000 Crystals (Code) | In-game code input | Valid until June 30, 2026 | Extra pulls or stamina refills |
New Roguelite Mode: Sortie – The Star of the Half-Anniversary
The biggest addition to the Chaos Zero Nightmare half-anniversary is Sortie, and this is a brand-new independent roguelite mode designed purely for fun deck-building without touching your main save data. It runs separately from your regular Chaos runs, letting you experiment freely.
With this Chaos Zero Nightmare Sortie mode, you have to:
Start with one Combatant and expand your squad (up to 4 members) as you progress through zones: Outer (9 areas), Central (11 areas), and Deep (13 areas).
Recruit unowned Combatants via rescue signals and mix them with powerful Fate effects from Elite enemies and bosses.
Five difficulty levels, including Hell Mode with stacked risk modifiers for massive rewards.
Hardcore Mode option: Zero HP means instant incapacitation instead of Link Crash, adding real tension.
Clear runs to earn Black Matter, the new currency used to edit your main save data (duplicate or remove cards, tweak Flash items, and more).
Remember that Sortie is perfect for daily Black Matter farming and testing wild deck ideas. It is currently known as the most replayable endgame addition yet. If you want to push deeper into Sortie runs and need extra resources to optimize your decks or top up Chaos Zero Nightmare quickly for more attempts, LootBar is a reliable way to grab in-game currency fast and keep your momentum going without any downtime.
top up Chaos Zero Nightmare
New Story & Characters Dropping with the Update
Season 3 of Galactic Disaster, titled “A Song Rippling Through the Stars,” brings the SS Nightmare crew in the Chaos Zero Nightmare half-anniversary to a major Stella Stage performance that hides Chaos Order schemes. New locations like Theater of Illusions and base SS Edenity are also there to expand the narrative.
Heidemarie — This is the Half-Anniversary limited Combatant. Her kit revolves around Link (play one linked card to discard the rest) and Repose (discarded cards trigger attack effects). Sword cards fuel massive chained damage with her ultimate Liberation Aurora.
Heidemarie
New Partner Sylvia joins the roster, alongside other teased units that expand team-building options.
Sylvia
How to Prepare for Maximum Progress
If you are a new player, then dive into the Chaos Zero Nightmare half-anniversary with early pulls on strong DPS or draw engines. And use your free selectors to plug obvious holes (healing or shielding). Make sure to build a balanced team for story progression before diving into Sortie.
And for the returning players, we recommend you to save those 70 free pulls until the 200-pull selector is active. Assess your roster gaps before using the 5-star tickets and using Veronica for card draw or a solid healer can transform your runs.
As for general recommendations, you can log in daily from April 29, redeem the coupon code immediately, and treat Sortie as your new daily routine for Black Matter. When you’re ready to expand your options further or secure extra Crystals for banner pulls, LootBar makes topping up straightforward and efficient so you can focus on the fun parts of deck-building and roguelite runs.
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Conclusion
So, that is everything about the Chaos Zero Nightmare half-anniversary. As you can see, this turns the game into one of the most player-friendly roguelike gachas right now. With free 5-stars, a brand-new mode, and meaningful QoL, there’s never been a better time to board the SS Nightmare.
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