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Arknights IS5 Guide: How to Unlock All Hidden Endings (Sarkaz)

by QuinnHarry 07 Dec 2025 0 comments

How to Unlock All Hidden Endings (Sarkaz)You can get all hidden Sarkaz endings in Arknights IS5 Guide if you follow a certain order. Begin with Ending #1. Then go to the next endings as each one opens new paths. Watch Lost and Found nodes and Historical Reconstruction events closely. Important choices in some encounters will decide how far you go. This way, you will meet every need and make good choices at key times. At Bahomu, we help you prepare for every strategic challenge with the best operator gear.

Sarkaz Endings List

Unlocking all Sarkaz endings in Arknights IS5 Guide gives you a deeper look into the story and rewards. Each ending has its own requirements and unique challenges. You need to follow the right steps to reach each one. Here is a breakdown of the three main Sarkaz endings you can unlock:

Ending #1: The First Furnace

You start your journey with The First Furnace. This ending acts as the foundation for all other Sarkaz endings. You must complete this ending before you can unlock the others. The First Furnace asks you to make careful choices during key events. You will face several battles that test your team’s strength. You should focus on building a balanced squad and pay attention to the story nodes. If you miss important triggers, you may need to restart your run.

Tip: Always check the event descriptions. Some choices will lock or unlock future endings.

Ending #2: Lost and Found

After you finish The First Furnace, you can access Lost and Found. This ending requires you to interact with special nodes called Lost and Found. You must find these nodes during your run and make the right decisions when you reach them. Lost and Found offers new story details and extra rewards. You should bring operators who can handle different enemy types. Watch for clues in the dialogue that hint at the correct choices.

  • Look for Lost and Found nodes on the map.

  • Choose options that reveal more about the Sarkaz history.

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Ending #3: Furnaceside Fables

Furnaceside Fables is the final Sarkaz ending in Arknights IS5 Guide. You unlock it after completing the first two endings. This ending has the most complex requirements. You need to trigger Historical Reconstruction events and solve special puzzles. You must use your knowledge from previous runs to make the right choices. Furnaceside Fables rewards you with rare items and a deeper understanding of the Sarkaz story.

Note: Prepare your team for tough battles. Some bosses have unique skills that require special strategies.

If you follow these steps, you will unlock all Sarkaz endings and enjoy the full story experience.

Arknights IS5 Guide: Unlocking Sarkaz Endings

Prerequisites and Preparation

You need to prepare before you start your run in Arknights IS5 Guide. Build a balanced team with strong defenders, healers, and damage dealers. Check your operator levels and skills. Upgrade your main operators so they can handle tough battles. Bring operators who can deal with different enemy types. Study the map and look for special nodes like Lost and Found and Historical Reconstruction. These nodes help you unlock hidden endings. Read the event descriptions carefully. Some choices will open new paths, while others may block your progress. For detailed enemy stats, consult the Arknights Wiki.

Tip: Always keep a backup plan. If you miss a key event, restart your run and try again.

Unlocking The First Furnace

You must unlock The First Furnace before you can reach other Sarkaz endings in Arknights IS5 Guide. Start your run and focus on story nodes that mention the Sarkaz. Choose options that reveal more about their history. Complete all battles in these nodes. Do not skip any important events. Use your strongest operators for boss fights. Watch for clues in the dialogue. Some choices will trigger the ending. If you make the wrong choice, you may need to restart.

Step-by-step guide:

  1. Begin your run and select the Sarkaz path.

  2. Visit all story nodes related to the Sarkaz.

  3. Choose options that show interest in the Sarkaz story.

  4. Win all battles, especially boss fights.

  5. Trigger the ending by making the right choices in key events.

Note: The First Furnace acts as the base for all other endings. You cannot unlock Lost and Found or Furnaceside Fables without completing it first.

Accessing Lost and Found

After you finish The First Furnace, you can access Lost and Found in Arknights IS5 Guide. Look for Lost and Found nodes on the map. These nodes appear after you complete the first ending. Interact with them and read the story carefully. Make choices that reveal more about the Sarkaz past. Some nodes may ask you to solve puzzles or defeat special enemies. Use operators who can handle different enemy skills. Pay attention to clues in the dialogue. These clues help you pick the right options.

Lost and Found Node Table:

Node Name

Trigger Condition

Recommended Operators

Lost Memories

Complete The First Furnace

High DPS (e.g., Ch'en), Healer

Forgotten Path

Visit after Lost Memories

Defender, Supporter

Sarkaz Relic

Solve puzzle in node

Specialist, Sniper (e.g., W)

Tip: If you miss a Lost and Found node, you may need to restart your run. Always check the map for new nodes after each event.

Unlocking Furnaceside Fables

Furnaceside Fables is the final Sarkaz ending in Arknights IS5 Guide. You unlock it after completing both The First Furnace and Lost and Found. This ending requires you to trigger Historical Reconstruction events. Look for these events on the map. Interact with them and solve the puzzles. Some events may ask you to make tough choices. Use your knowledge from previous runs to pick the best options. Prepare your team for unique boss fights. Some bosses have special skills that need specific strategies. Check out GamePress for detailed boss mechanics.

Boss Strategy List:

  • Study boss skills before the fight.

  • Use operators with crowd control abilities.

  • Bring healers to keep your team alive.

  • Adapt your team based on the boss’s attack pattern.

Alert: Historical Reconstruction events are key to unlocking Furnaceside Fables. Missing one may block your progress.

If you follow these steps, you will unlock all Sarkaz endings in Arknights IS5 Guide. Pay attention to story nodes, make smart choices, and prepare your team for every challenge.

Upgrade Your Operator Collection

Tips and Pitfalls

Optimizing Your Run

You can do better in Arknights IS5 Guide if you plan ahead. Make a team with defenders, healers, and damage dealers. Upgrade your operators before you start your run. Look at the map and find important nodes like Lost and Found or Historical Reconstruction. Use this checklist to help your run go well:

  • Level up your main operators.

  • Bring operators who can fight different enemies.

  • Check the map for special nodes after each event.

  • Save your resources for boss fights.

Tip: Try out different teams to see what works best for each ending.

Avoiding Common Mistakes

Some players miss hidden endings because they skip key events or rush choices. You should read every event description closely. Look for clues in the dialogue. Do not skip story nodes that talk about the Sarkaz. If you miss a Lost and Found node, restart your run. Here are mistakes you should avoid:

Mistake

How to Avoid

Skipping story nodes

Visit every Sarkaz node

Ignoring event clues

Read all dialogue

Weak team composition

Balance your squad

Not saving resources

Plan for boss battles

Alert: If you miss a key event, you might not get hidden endings.

Maximizing Unlock Chances

You can get more endings by making smart choices. Always use Lost and Found and Historical Reconstruction nodes. Pick options that tell you more about the Sarkaz story. Change your team for each boss. Use what you learned from past runs to help you decide. Follow these steps:

  1. Finish The First Furnace before you try other endings.

  2. Keep track of the nodes you visit.

  3. Use clues from dialogue to pick the best options.

  4. Get ready for special boss fights with the right operators.

Note: The Arknights IS5 Guide helps you avoid mistakes and get more rewards.


  • Start with The First Furnace ending.

  • Find Lost and Found nodes for the second ending.

  • Trigger Historical Reconstruction events for the final ending.

  • Build a strong team and read every story node.

  • Track your choices and restart if you miss key events.

You will feel proud when you unlock all endings. Use the Arknights IS5 Guide for better rewards and story. Bahomu is here to celebrate your victories with exclusive collectibles. Return to this guide if you need help or want to improve your run.

FAQ

How do you know if you triggered a hidden ending?

You will see a special story scene or a unique message at the end of your run. Watch for new dialogue or changes in the ending screen. These signs show you unlocked a hidden ending.

What happens if you miss a Lost and Found node?

You cannot unlock the Lost and Found ending if you miss its node. You should restart your run and look for the node on the map. Always check after each event to avoid missing it.

Can you unlock all Sarkaz endings in one run?

No, you must unlock each ending in order. You need to finish The First Furnace first. Then you can unlock Lost and Found. After that, you can access Furnaceside Fables.

Which operators work best for boss fights?

Use operators with strong crowd control, healing, and high damage. Snipers, Defenders (like Shu), and Medics help you survive tough bosses. Adapt your team based on the boss’s skills.

Do your choices in story nodes affect the endings?

Yes, your choices matter. Picking the right options in story nodes unlocks new paths and endings. Always read the dialogue and think before you choose.

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