Nerd Ducky

ARTICLE

ADVANCED

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Nerd Ducky

Enemy • Sticker

Sandbox Only Content

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Nerd Ducky was previously removed on the 5th June 2026, though it has been made available through the Sandbox mode later.
It is not accessible anywhere else in the game. This page will attempt to include information about both the version before removal and its re-added version.

Similar Article

This article is about Nerd Ducky. You may be looking for other uses of Duck.

Nerd Ducky
Mode Appearance	Sandbox via Logbooks Originally: Ducky Revenge (Hard)
Wave Debut	25 (Hard)
Statistics
Base Health	1,000,000
Health Scaling	Trio - 1,200,000 Quad - 1,300,000
Defense	15%
Speed	Extremely Slow (0.75)
Cash Given	$156,250 every 12.5% health
Hidden?	No
Flying?	No Yes (Ducky Decoy only)
Ghost?	No
Lead?	No
Attributes	Stun Immune Boss Immunities:
Abilities
Ability 1Cooldown: 25Attack CD: 6	Ducky Decoy - The Nerd Duck jumps from one path to another, summons in one Mega Ducky which has its health reduced to 10,000 after departure. Becomes a Flying enemy during this ability.
Ability 2Cooldown: 42.5Attack CD: 8	Ducky Stampede - Summons in 10 Elite Duckies and one Mega Ducky. The Mega Ducky has 100% Defense.
Ability 3Cooldown: 32.5Attack CD: 6	Ducky Reposition - Targets a tower with a beam and swaps it with a random tower.
Ability 4Cooldown: 12.5Attack CD: 10	Ducky Discharge - Supercharges itself, dealing 30 damage to the base, stunning towers for 8 seconds and dealing over 100,000 damage to units. Can reduce the base's health to below zero. If a Bunny Sentry is on the map, it will launch itself at the Nerd Duck, stopping the ability.
Ability 5Cooldown: 15Attack CD: 3	Ducky Blast - Fires out multiple missiles at a minimum of five targets, applying a 30% Fatigue Debuff (~23.07% increase) to towers for 8 seconds. As for units, it deals no damage and does not affect them in any way.
Ability 6Cooldown: 52.5Attack CD: 6	Nerd Rage - Powers up its left arm and slams the ground, stunning towers for 6 seconds and dealing 1,500 damage to units.
Music
OfficialIn-Game (Official) Tower Defense Simulator OST - Kill Dem (Nerd Duck Theme) Tower Defense Simulator OST - Kill 'Dem In-Game

You will pay for leaving us to starve like we were NOTHING! All of you!

―Nerd Duck dialogue on Wave 25 (Bathroom Approach, Hard)

Description

The Nerd Ducky, internally referred to as the Nerd Duck, was the final boss of the Ducky Revenge Event and its rerun in the Spring Frenzy Battle Pass on the Hard difficulty, where it appeared on Wave 25. As a major boss, it has very high health and has boss immunities such as being immune to the Nuke fallout damage, the Jester and Biologist's confusion effects, the DJ Booth's slowdown from Drop the Beat and the Toxic Gunner's slowdown. To compensate, it walks quite slowly.

It has six abilities:

1. The first, Ducky Decoy has it jump to another path while also temporarily becoming a Flying enemy, leaving a Mega Ducky without boosted defense behind but with health reduced to 10,000. It always moves paths in a cycle: Starts on yellow, then jumps to orange, then green, then blue and then goes back to yellow.
2. The second, Ducky Stampede has it spawn ten Elite Duckies and one Mega Ducky with 100% Defense.
3. The third, Ducky Reposition, has it target a tower with a beam and swap its location with another tower.
4. The fourth, Ducky Discharge has it supercharge itself, damaging the base by 30 health, stunning all towers for 8 seconds and dealing over 100,000 damage to units. Can reduce the base's health to below zero. If a Bunny Sentry is on the map, it will launch itself at the Nerd Duck, stopping the ability.
5. The fifth, Ducky Blast, has it fire out multiple missiles at a minimum of five targets, applying a 30% Fatigue Debuff (~23.07% firerate increase) to towers for 8 seconds. As for units, it deals no damage and does not affect them in any way.
6. The sixth, Nerd Rage, has it power up its left arm and slam the ground, stunning towers for 6 seconds and dealing 1,500 damage to units.

When the Nerd Ducky is defeated, it begins to fall apart, first its right arm, then its left arm, then the bunny ears which are launched into the sky, and then it falls over on its back, tossing the duck inside out in the process. The bunny ears then fall back down to the ground.

Logbook Description

"The latest invention by Nerd Duck: a state-of-the-art machine wing-crafted by the mechanist nerd who equipped it with the latest engineering of duck weaponry. With the discovery of the God Shard, its energy output allowed Nerd Duck to harness its power and advance currently known duck technology. This masterpiece stands as Nerd Duck’s prized creation."

Appearance

The Nerd Ducky is a huge mech based on a rabbit, powered by a God Cube fragment. The mech itself is adorned with white plating. In its chest, there is a cockpit where the Nerd Ducky pilots the mech and located on its back is a red core. The arms are more square near the shoulder while the forearms are more circular. Located in both arms are compartments that contain missile launchers, and both arms have four grey fingers. The legs are grey except for the thighs which are white, and the feet resemble that of a rabbit. Finally, the head is flat and heavily resembles that of a rabbit, with red eyes, a small grey nose and two large ears.

The Nerd Ducky controlling the giant mech is a small yellow duck with an orange beak, two white teeth and orange flippers. It wears a white shirt, blue swear, a black bowtie and grey glasses.

Event Strategy

As this enemy only appears through Sandbox mode, no strategy section is made for its current version. Instead, a strategy section for the one that appeared without Sandbox mode in Bathroom Approach is listed instead.

• Nerd Ducky will initially spawn on the left side, however, it will keep hopping between paths afterwards.
  • This makes high range towers, like the Ranger or Pursuit very useful here.
  • The DJ Booth can be used to boost the range of your towers, allowing them to cover more of the track, though this will mostly help out the already high range towers.
• High DPS towers like the Ranger, Pursuit, Golden Minigunner, Turret or Accelerator are recommended against this.
  • As the Ranger and Pursuit are stun immune, they are immune to most of its attacks except Ducky Blast ability, as they are not fully debuff immune.
  • The Commander and DJ Booth can be used to boost the DPS of these towers.
• It is recommended to buy Bunny Sentries before Wave 25, as they can stop the Ducky Discharge ability.
• The Medic can be used to cleanse towers from stuns, but it cannot be used to help with the Fatigue Debuff applied by Nerd Duck's Ducky Blast ability.

Sounds

Sound	Description
Abilities
	When the Nerd Ducky performs Ducky Decoy ability
	Before the Nerd Ducky performs Ducky Stampede ability
	When the Nerd Ducky performs Ducky Stampede ability
	After the Nerd Ducky performs Ducky Stampede ability
	Before the Nerd Ducky performs Ducky Reposition ability
	When the Nerd Ducky performs Ducky Reposition ability
	After the Nerd Ducky performs Ducky Reposition ability
	When the Nerd Ducky performs Ducky Discharge ability
	When the Nerd Ducky performs Ducky Blast ability
	When the Nerd Ducky performs Nerd Rage ability
Walk
	When the Nerd Ducky walk
	When the Nerd Ducky walk
Death
	When the Nerd Ducky dies

Gallery

Animations

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  Current version, current Nerd Rage animation (16 April 2025 – Present)

Corpse Variants

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  Second Corpse variant, current version (16 April 2025 – Present)

Thumbnails

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  Nerd Ducky on the game thumbnail.
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  Nerd Ducky on the game thumbnail.

Promotional Videos

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  Nerd Ducky on a promotional video.

Trailers

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  Nerd Ducky in the game trailer.

Cutscenes

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  Nerd Ducky in the opening Bathroom Approach cutscene.
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  Nerd Ducky in the opening Bathroom Approach cutscene, storyboard version.
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  Nerd Ducky in the ending Bathroom Approach cutscene.
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  Nerd Ducky in the ending Bathroom Approach cutscene.
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  Nerd Ducky in the ending Bathroom Approach cutscene, alternate version.

Development Images

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  Nerd Ducky on a development image.
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  Nerd Ducky on a development image.
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  Nerd Ducky on a development image.
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  Nerd Ducky on a development image.
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  Nerd Ducky on a development video.

Concept Art

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  Nerd Duck's mecha bunny on concept art.

Renders

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  Nerd Ducky on a render.

Stickers

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  Nerd Ducky on the Nerd Ducky sticker.

Charms

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  Nerd Ducky on the Nerd Duck Charm.
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  Nerd Ducky's Bunny Mech on the Bunny Charm.

Badges

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  Nerd Ducky on the "Ducky Revenge - Hard" badge.

Miscellaneous

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  Nerd Duck that controls the Nerd Ducky mech.
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  Nerd Ducky on its Index icon.

Trivia

• The Nerd Ducky is the second enemy to specifically target map elements, the first being The Umbra.
  • The Nerd Ducky, however, is the first enemy to be able to destroy map elements, rendering them unusable.
• When you spawn the Nerd Ducky in a different map, the first ability, Ducky Decoy, has it jump to the exit.
• The Nerd Ducky quacks were created by Enthrallist using duck calls.
• The Nerd Ducky is unaffected by enemy appearance modifiers, such as Talk Like a Pirate Day.

Update History

• 16 April 2025 - v1.61.0
  • Nerd Duck added.
  • Bug: Nerd Duck clips into the ground when made larger or smaller.
  • Bug: Ducky Decoy does not set Mega Duck's health to 10,000 properly.
  • Bug: Nerd Duck is ridiculously far away in its Index.
  • Bug: Nerd Duck blocks tower placement near it, blocked area has Damage Indicators appear in it.
• 28 May 2025 - v1.65.0
  • Nerd Duck removed from the main game, now appears exclusively in Sandbox mode.
• 3 April 2026 - v1.88.0
  • Nerd Ducky re-added to the main game, now appears in Bathroom Approach.
  • Name changed from Nerd Duck to Nerd Ducky.
  • Health increased from 800,000 to 1,000,000 in Hard difficulty.
  • Defense of 15% added.
  • Speed decreased from Slow (1.525) to Extremely Slow (0.75).
  • Cash given changed from $12,500 every 1% health lost to $156,250 every 12.5% health lost.
  • Ducky Decoy cooldown decreased from 45 to 25.
  • Ducky Stampede cooldown increased from 40 to 42.5.
  • Ducky Reposition cooldown increased from 30 to 32.5.
  • Ducky Discharge changed.
    • Base health damage increased from 25 to 30.
    • Cooldown decreased from 60 to 10.
  • Ducky Blast changed.
    • Fatigue Debuff increased from 20% to 30%.
    • Scared Debuff removed.
    • Cooldown decreased from 20 to 15.
  • Nerd Rage changed.
    • Stun time increased from 4 to 6.
    • Damage increased from 600 to 1,500.
    • Cooldown increased from 38 to 52.5.
  • Bugfix: Ducky Decoy now properly sets Mega Ducky's health to 10,000, though it is only noticeable in Sandbox mode.
• 22 April 2026 - v1.89.0
  • Bug: When Nerd Ducky uses its Ducky Decoy ability, the animation for said ability will play continuously until it activates another ability or if it dies.
• 22 May 2026 - v1.91.0
  • Bugfix: No longer clips into the ground when made larger or smaller.
• 5 June 2026 - v2.0.0
  • Nerd Ducky removed from the main game, now appears exclusively in Sandbox mode.

Bathroom Approach (Ducky Revenge Event)
Previous Debut	Current Debut	Next Debut
Super Soldier Ducky Wave 22	Nerd Ducky Wave 25	End N/A