To clear Level 109, Forgotten City, treat each attempt as a controlled push: enter with your strongest reliable squad, scout the opening threats, spend resources only when they secure progress, and reset after a costly mistake. The source video is specifically a Level 109 run, but it does not list a fixed roster, enemy lineup, rewards, or version, so use the checklist below to adapt your account rather than copy an unverified build.

Prepare for Level 109 Before Starting

Use a dependable squad and enter with enough resources to recover from an imperfect opening. The available source identifies the stage but does not confirm a required hero, weapon, or exact power threshold.

Before starting, check:

  • Your main damage dealer is properly upgraded.
  • Your frontline or defensive option can survive the first engagement.
  • Your support choices improve survivability or consistent damage.
  • Your key abilities are available before entering.
  • You have enough healing, energy, or other stage resources for a full attempt.
  • Your equipment is not spread too thin across several weaker characters.

A balanced team is generally safer than an all-in damage setup when the enemy lineup is not known in advance. If your account has one clearly stronger carry, build the rest of the squad around keeping that character active.

Scout the Opening of Forgotten City

The first section should be used to identify the stage’s immediate danger before committing your strongest resources. Do not spend every ability as soon as the level begins unless the opening group threatens to overwhelm your team.

During the opening push:

  1. Watch which enemy reaches your team first.
  2. Identify whether damage is concentrated on one target or spread across the squad.
  3. Notice whether ranged or high-damage enemies are positioned behind tougher units.
  4. Use lower-cost attacks to test the encounter when possible.
  5. Save your strongest cooldown for the first situation that can end the attempt.

This approach gives you information for the next attempt without repeatedly wasting your best tools. If the first encounter is already causing heavy losses, change formation or target priority before trying to force the rest of the stage.

Choose Targets Before Spending Abilities

Target priority matters more than simply using every available skill. Remove the enemy that creates the greatest threat to your team, even if another target has less health.

A practical priority order is:

PriorityTarget typeReason
1High-damage ranged enemyIt can weaken your team while staying protected
2Enemy controlling or disabling your squadCrowd control can stop your damage window
3Fast attacker reaching your back lineIt may eliminate a support or damage dealer
4Durable frontline unitFocus it after the immediate threats are removed
5Low-threat enemyFinish it when stronger targets are no longer dangerous

Adjust this order if the stage presents a different threat. The key is to avoid splitting damage across several enemies unless your abilities are designed to hit multiple targets.

Manage Resources Across the Full Stage

Save resources for moments that preserve your run, rather than spending them to speed up every encounter. Level 109 should be approached as a complete clear, not as a race through the first section.

Use resources carefully by:

  • Holding major abilities when normal attacks are enough.
  • Healing after meaningful damage instead of immediately after every hit.
  • Avoiding unnecessary upgrades during a run if the resource is more valuable later.
  • Keeping at least one emergency option available for a dangerous encounter.
  • Repeating the level only after identifying what caused the previous failure.

If your team reaches the later part of the stage with no recovery tools left, the problem may be resource timing rather than raw power. Try using smaller abilities earlier and reserving your strongest option for the encounter that repeatedly ends your attempts.

Adapt Your Squad to the Failed Attempt

Each defeat should answer a specific question: did the team lack damage, survivability, control, or reliable targeting? Change one major factor at a time so you can tell whether the adjustment helped.

Failure patternAdjustment to test
Your frontline falls immediatelyAdd defense, healing, or a sturdier frontline option
Damage dealers are defeated earlyImprove protection or reposition vulnerable units
Enemies survive every damage windowConcentrate attacks and improve your main damage source
A dangerous enemy acts freelyPrioritize it earlier or use control against it
The team reaches the end without resourcesReduce unnecessary ability and healing usage
The opening is manageable but the run collapses laterSave more resources for the later encounters

Avoid replacing the entire team after one failed attempt. A small change to targeting, positioning, or ability timing may solve the problem without requiring a completely different build.

Use a Safe Clear Pattern

A repeatable rhythm is more reliable than aggressive improvisation. Start cautiously, identify the most dangerous target, then commit your strongest tools when they secure a clear advantage.

A safe Level 109 attempt can follow this pattern:

  1. Enter with your most reliable current squad.
  2. Observe the first enemy group before using every major skill.
  3. Focus the highest immediate threat.
  4. Protect the character responsible for sustained damage.
  5. Spend a major ability when it prevents a likely defeat.
  6. Recover only when the damage taken justifies the cost.
  7. Reassess before the next encounter instead of repeating the same rotation automatically.
  8. Reset if the run has lost too many essential resources early.

This method is especially useful when guides or videos do not provide a confirmed roster. It lets you reproduce the decision-making process without assuming that another player’s account strength matches yours.

Level 109 Clear Checklist

Confirm these points before committing to a final attempt:

  • [ ] The squad has one clear primary damage source.
  • [ ] A defensive or recovery option is available.
  • [ ] You know which target must be defeated first.
  • [ ] Your strongest ability is not wasted on a harmless opening group.
  • [ ] You can recover from one mistake without ending the run.
  • [ ] Your team remains effective if the first target survives longer than expected.
  • [ ] You have changed your plan after identifying the cause of a previous defeat.

The source is a focused Level 109 run rather than a confirmed database of stage mechanics, so enemy names, rewards, and required power should be verified in your current version of Duck Survival.

Final Strategy for Forgotten City

Clear Level 109 by prioritizing reliable survival over maximum speed. Scout the opening, focus the most dangerous target, protect your main damage dealer, and conserve major resources for the encounter that can actually end the run. Since no fixed roster or exact stage requirements are confirmed by the source, adapt these decisions to your own heroes, equipment, and current account strength.

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Emily Johnson

Emily Johnson

Emily writes practical mobile strategy guides with a focus on resource planning, base progression, and the early decisions that shape a long-term account.