As Trailblazers continue to journey through the stars in Honkai: Star Rail, one endgame mode has remained a cornerstone of the weekly challenge calendar — Memory of Chaos. As of 2026, this ever‑shifting gauntlet within the Forgotten Halls still offers some of the most demanding combat encounters in the game, pushing even veteran players to refine their team compositions and relic builds every two weeks.
Whether you are a returning Trailblazer or a fresh recruit aiming for those extra Stellar Jades, mastering Memory of Chaos requires a clear understanding of its unlock requirements, the rotating buffs, and the specific weaknesses of each floor’s boss lineup. Below, we break down everything you need to know to conquer the current rotation and maximize your rewards.
How to Unlock Memory of Chaos
When you first set foot in the Forgotten Halls aboard the Astral Express, only the Memory Levels (the blue‑colored stages) are available. These 15 floors on Jarilo‑VI act as a permanent one‑time challenge, rewarding Stellar Jades, character EXP materials, Light Cone enhancement items, and relic fragments for reaching certain star thresholds. You must clear all 15 Memory Levels of Jarilo‑VI — not necessarily with three stars on every floor — to permanently unlock the purple‑tinted Memory of Chaos mode. Once unlocked, it will appear in your Interastral Peace Guide alongside its countdown timer, signaling the next reset.
Memory of Chaos Floor Guide
Memory of Chaos consists of 10 floors that reset every two weeks when the server clock hits Monday. The exact enemy roster can change between cycles, but the current lineup (early 2026 rotation) features a particularly potent Memory Turbulence mechanic. Each time a character acts twice in a row, they gain a stack of Memory Imprint, boosting their DMG by 40%. Striking an enemy also has a chance to inflict the Dissociation effect: the target becomes Frozen, skipping its next turn and immediately taking 15% of its Max HP as damage on that lost turn. This turbulence makes action‑advance supports and characters who can take consecutive turns exceptionally valuable.
Understanding the boss weaknesses on each half of a floor is crucial for assembling your two teams. The table below summarizes the key enemy information for the current cycle:
| Floor | Enemy Level | Boss Enemies | Common Weaknesses | Best DPS Characters |
|---|---|---|---|---|
| 1 | 68 | Automaton Grizzly & Decaying Shadow | Lightning, Fire | Kafka, Hook |
| Senior Staff: Team Leader & Shape Shifter | Imaginary, Ice | Dan Heng: Imbibitor Lunae, Jingliu | ||
| 2 | 70 | Stormbringer & Malefic Ape | Ice, Fire | Jingliu, Hook |
| Aurumaton Gatekeeper & Guardian Shadow | Quantum, Wind | Seele, Blade, Dan Heng, Qingque | ||
| 3 | 73 | Silvermane Lieutenant & The Ascended | Ice, Physical | Jingliu, Luka, Sushang |
| Svarog & Frigid Prowler | Lightning, Fire | Kafka, Hook | ||
| 4 | 75 | Blaze Out of Space & Aurumaton Gatekeeper | Quantum | Seele, Qingque |
| Gepard & The Ascended | Lightning, Physical | Kafka, Luka, Sushang | ||
| 5 | 78 | Senior Staff: Team Leader & Automaton Grizzly | Ice, Fire | Jingliu, Hook |
| Kafka & Shape Shifter | Imaginary, Wind | Blade, Dan Heng: Imbibitor Lunae | ||
| 6 | 80 | Shape Shifter & Searing Prowler | Imaginary, Ice | Dan Heng: Imbibitor Lunae, Jingliu |
| Malefic Ape & Senior Staff: Team Leader | Ice, Fire | Jingliu, Hook | ||
| 7 | 83 | Aurumaton Gatekeeper & Guardian Shadow | Quantum, Wind | Seele, Qingque, Blade, Dan Heng |
| Gepard & The Ascended | Lightning, Physical | Kafka, Luka, Sushang | ||
| 8 | 85 | Senior Staff: Team Leader & Stormbringer | Imaginary, Ice, Fire | Dan Heng: Imbibitor Lunae, Jingliu |
| Yanqing & Decaying Shadow | Wind, Lightning | Blade, Kafka | ||
| 9 | 88 | Senior Staff: Team Leader & Automaton Direwolf | Imaginary, Ice | Dan Heng: Imbibitor Lunae, Jingliu |
| Abundant Ebon Deer & Ice Out of Space | Quantum, Fire | Seele, Qingque, Hook | ||
| 10 | 90 | Malefic Ape & Decaying Shadow | Wind, Fire | Blade, Hook |
| Swarm: True Sting & Stormbringer | Imaginary, Ice | Jingliu, Dan Heng: Imbibitor Lunae |
📌 Important: On floors 1 through 5, you face two distinct boss rounds and can use your Technique before each battle. From floor 6 onward, Techniques can only be activated before the first wave of the boss — except for a few special cases like Jingliu’s or Welt’s Techniques, which apply to all waves. Plan your pre‑battle buffs accordingly.
Memory of Chaos Rewards
Unlike the permanent Memory Levels, the bi‑weekly Memory of Chaos offers more modest but recurring rewards. For every three stars you earn across the 10 floors, you’ll receive 60 Stellar Jades, plus some basic character and Light Cone EXP materials for simply clearing a floor. Capping out at 600 Jades per two‑week cycle (roughly 1200 Jades a month), this mode consistently contributes to your gacha currency stash without requiring an overwhelming time investment.
While the reward ceiling hasn’t changed dramatically over the years, the value of those Jades remains as high as ever for free‑to‑play players aiming for new 5‑star characters or Light Cones. Combine them with the Simulated Universe and other events, and you have a steady resource pipeline.
🔄 Adapting to Future Rotations
Because Memory of Chaos resets so frequently, building a versatile roster is far more important than following a fixed tier list. Pay close attention to the Memory Turbulence description each cycle — it often dictates which support units and relics will dominate that rotation. If you’re struggling, focus on raising characters who cover multiple elemental weaknesses and invest in strong sustain options like Luocha, Fu Xuan, or Huohuo to survive the higher floors. Over time, even the toughest floors become manageable with consistent progression.
Keep an eye on the Interastral Peace Guide for the exact reset timer, and may your teams freeze, shatter, and overwhelm every boss that stands between you and those precious Jades.