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“Otherworldly beauty, world-ending power.”

Eternal Nightmare

Last updated 2025-12-25

Eternal Nightmare (Banner)
Duration
Jan 08, 2021 ~ Jan 18, 2021
latest?cb=20260804200657
Party's Over, Back to Sleep... ZZZ...
This page contains content that is no longer available. It may or may not return in the future but its return, at least in its original form, is highly unlikely.

In the darkest of nightmares, you keep falling down, reaching out for the salvation of light.

Sim battle [Eternal Nightmare] has been booted! Play to earn Crystals (Small) Crystals, Honkai Shard (Small) Honkai Shard, Ancient Willpower (Small) Ancient Willpower, and Imaginon!

Duration

10:00, JAN 8 ~ 4:00, JAN 18

Required Level

25 or higher

Details

  1. Sim Battle [Eternal Nightmare] is a special solo challenge-streak activity. You can only deploy one combat battlesuit and up to two support battlesuits that are featured in this activity.
  2. Eternal Nightmare contains five stages that are played in order. You gain a random buff for every stage cleared. If you perform exceptionally well, you may unlock the extra hidden stage!
  3. You cannot change the combat battlesuit mid-game and her remaining HP will be retained by the next stage.

Obtaining Event Tokens

  1. Eternal Nightmare awards two types of tokens: File:Trial Token (Icon).png Trial Token and File:Sentience Shard (Icon).png Sentience Shard.
  2. Complete specific missions during the event period to obtain Crystals (Small) Crystals and File:Trial Token (Icon).png Trial Tokens. Spend File:Trial Token (Icon).png Trial Tokens in the event shop to purchase Honkai Shard (Small) Honkai Shard and Ancient Willpower (Small) Ancient Willpower.
  3. Complete specific missions and clear event stages to obtain File:Sentience Shard (Icon).png Sentience Shards. Event stages award File:Sentience Shard (Icon).png Sentience Shard ×1,000 daily at most. Spend File:Sentience Shard (Icon).png Sentience Shards in the event system [Memory Arsenal] to unlock combat and support battlesuits and purchase powerful global buffs.

Obtaining Buffs

  1. Eternal Nightmare features random buffs and global buffs. Random buffs only apply to the challenges of a single round, while global buffs apply to the challenges of every round.
  2. You can draw one buff from three random buffs every time you clear an event stage.
  3. The faster a stage is cleared and the more remaining HP the combat battlesuit has, the higher your odds of gaining an extra draw.
  4. Special random buffs may appear when drawing random buffs! Special random buffs will greatly improve the performance of battlesuits by enhancing their skills.
  5. Global buffs are purchased and upgraded with File:Sentience Shard (Icon).png Sentience Shards in the event system [Memory Arsenal].

Ai-chan's Reminders

  1. If you quit or fail a stage, the current round will end, and you will need to start a new round.
  2. If you find a stage too difficult, you can try unlocking more powerful global buffs in the event system [Memory Arsenal] first.
  3. Event shop [Dream Platform] will close at 04:00, JAN 25. File:Trial Token (Icon).png Trial Tokens will expire simultaneously and return Mithril (Small) Mithril ×15 each.
  4. File:Sentience Shard (Icon).png Sentience Shards will expire at 04:00, JAN 18 alongside the event without return.