Biologist/History

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ARTICLE
GALLERY
HISTORY

This is the history subpage for the Biologist/History. It contains every revision of the tower's statistics.

Hardcore Rework Update (5 June 2026) – Present

Base Statistics

[edit]
Biologist/History
Map: Bathroom Approach Hard • Exclusive • Support
Cost
Cash$650
Placement Footprint
Average (1.5)
Sell Price
Cash$250
Placement Type
Ground
Damage
Damage0 (Tower)
Damage6 (Sunflower)
Damage Method
Single (Sunflower & Nightshade)
Splash (Ivy)
Poison (Ivy)
Firerate
Firerate1 (Tower)
Firerate1.1 (Sunflower)
Hidden Detection
Level 2+Level 2+ (Sunflower only)
Range
Range4 (Tower)
Range15 (Sunflower)
Deadzone Range1.5 (Deadzone Range)
Lead Detection
Level 1+Level 1+ (Ivy only)
Placement Limit
Placement Limit8
Flying Detection
Level 3+Level 3+ (Nightshade only)

Upgrades

[edit]
Bio Chemistry
Level 1 • Cost: Cash$600

+4 Damage Damage

+50 Health Health

•8 Damage Damage

•14 Range Range

•2 Firerate Firerate

•100 Health Health

•20 Spawnrate Spawnrate

•20 Lifespan Lifespan

•3 Explosion Range Explosion Range

•1 Poison Damage Poison Damage

•0.75s Poison Tick Poison Tick

•4.5s Poison Time Poison Time

•5% Slowdown Slowdown

•20 Projectile Speed

•Lead Detection Lead Detection


Sell Price changes to Cash$450

Scientific Breakthrough
Level 2 • Cost: Cash$1,850

+1 Unit Queue

+2 Damage Damage

+2 Range Range

+100 Health Health

+Hidden Detection Hidden Detection

+4 Damage Damage

+1.5 Range Range

2 > 1.8 Firerate Firerate

+100 Health Health

3 > 4 Explosion Range Explosion Range

+1 Poison Damage Poison Damage

5% > 7.5% Slowdown Slowdown


Sell Price changes to Cash$1,066

Flower Power
Level 3 • Cost: Cash$4,500

+16 Damage Damage

+2.5 Range Range

•1.1 > 1 Firerate Firerate

+200 Health Health

+13 Damage Damage

+1.5 Range Range

+200 Health Health

4 > 4.5 Explosion Range Explosion Range

+2 Poison Damage Poison Damage

0.75 > 0.6 Poison Tick Poison Tick

•50 Damage Damage

•30 Range Range

•3 Firerate Firerate

•20 Spawnrate Spawnrate

•20 Lifespan Lifespan

•400 Health Health

•1 Confusion Time Confusion Time

•4 Confusion Cooldown Confusion Cooldown

•Flying Detection Flying Detection


Sell Price changes to Cash$2,566

Botanical Berserker!
Level 4 • Cost: Cash$20,000

+1 Unit Queue

+27 Damage Damage

+3 Range Range

1 > 0.8 Firerate Firerate

+400 Health Health

+20 Damage Damage

+1.5 Range Range

1.8 > 1.5 Firerate Firerate

+400 Health Health

+1 Poison Damage Poison Damage

0.6 > 0.65 Poison Tick Poison Tick

4.5 > 5.2 Poison Time Poison Time

7.5% > 12.5% Slowdown Slowdown

+85 Damage Damage

+5 Range Range

3 > 2.75 Firerate Firerate

+400 Health Health

1 > 1.25 Confusion Time Confusion Time


Sell Price changes to Cash$9,233

Statistics

[edit]
Biologist Stats
Level Cost Total Cost Firerate Range Deadzone Range Unit Queue Projectile Speed
0 Cash$750 Cash$750 1 4 1.5 1 5
1 Cash$600 Cash$1,350 1 4 1.5 1 5
2 Cash$1,850 Cash$3,200 1 4 1.5 2 5
3 Cash$4,500 Cash$7,700 1 4 1.5 2 5
4 Cash$20,000 Cash$27,700 1 4 1.5 3 5
Sunflower Stats[1]
Level Health Damage Spawnrate Firerate Lifespan Range Detections DPS Max DPS[2] Min Cost Efficiency Max Cost Efficiency[2]
0 50 6 20 1.1 20 15 N/A 5.45 5.45 Cash$137.61 Cash$137.61
1 100 10 20 1.1 20 15 N/A 9.09 9.09 Cash$148.51 Cash$148.51
2 200 12 20 1.1 20 17 Hidden 10.91 21.82 Cash$293.31 Cash$146.65
3 400 28 20 1 20 19.5 Hidden 28 56 Cash$275 Cash$137.5
4 800 55 20 0.8 20 22.5 Hidden 68.75 206.25 Cash$402.91 Cash$134.3
Ivy Stats[1]
Level Health Damage Poison Damage Spawnrate Firerate Poison Tick Lifespan Range Explosion Range Poison Time Slowdown Detections Total Elapsed Damage[3] DPS Max DPS[4] Min Cost Efficiency Max Cost Efficiency[4]
1 100 8 1 20 2 0.75 20 14 3 4.5 5% Lead 6 5.33[5] 5.33[6] Cash$253.28 Cash$253.28
2 200 12 2 20 1.8 0.75 20 15.5 4 4.5 7.5% Lead 12 9.33[7] 18.67[8] Cash$342.98 Cash$171.4
3 400 25 4 20 1.8 0.6 20 17 4.5 4.5 7.5% Lead 30 20.56[9] 41.11[10] Cash$374.51 Cash$187.3
4 800 45 5 20 1.5 0.65 20 18.5 4.5 5.2 12.5% Lead 40 37.69[11] 113.08[12] Cash$734.94 Cash$244.96
Nightshade Stats[1]
Level Health Damage Spawnrate Firerate Lifespan Range Confusion Time Confusion Cooldown Detections DPS Max DPS[2] Min Cost Efficiency Max Cost Efficiency[2]
3 400 50 20 3 20 30 1 4 Flying 16.67 33.33 Cash$461.91 Cash$231.02
4 800 135 20 2.75 20 35 1.25 4 Flying 49.09 147.27 Cash$564.27 Cash$188.09
Ducky Revenge Update (16 April 2025) – Hardcore Rework Update (5 June 2026)

Base Statistics

[edit]
Biologist/History
Map: Bathroom Approach Hard • Exclusive • Support
Cost
Cash$650
Placement Footprint
Average (1.5)
Sell Price
Cash$250
Placement Type
Ground
Damage
Damage0 (Tower)
Damage6 (Sunflower)
Damage Method
Single (Sunflower & Nightshade)
Splash (Ivy)
Poison (Ivy)
Firerate
Firerate1 (Tower)
Firerate1.125 (Sunflower)
Hidden Detection
Level 2+Level 2+ (Sunflower only)
Range
Range4 (Tower)
Range15 (Sunflower)
Deadzone Range1.5 (Deadzone Range)
Lead Detection
Level 1+Level 1+ (Ivy only)
Placement Limit
Placement Limit8
Flying Detection
Level 3+Level 3+ (Nightshade only)

Upgrades

[edit]
Bio Chemistry
Level 1 • Cost: Cash$600

+4 Damage Damage

+50 Health Health

•8 Damage Damage

•14 Range Range

•2.025 Firerate Firerate

•100 Health Health

•20 Spawnrate Spawnrate

•20 Lifespan Lifespan

•3 Explosion Range Explosion Range

•1 Poison Damage Poison Damage

•0.75s Poison Tick Poison Tick

•4.5s Poison Time Poison Time

•5% Slowdown Slowdown

•20 Projectile Speed

•Lead Detection Lead Detection


Sell Price changes to Cash$450

Scientific Breakthrough
Level 2 • Cost: Cash$1,850

+1 Unit Queue

+2 Damage Damage

+2 Range Range

+100 Health Health

+Hidden Detection Hidden Detection

+4 Damage Damage

+1.5 Range Range

2.025 > 1.825 Firerate Firerate

+100 Health Health

3 > 4 Explosion Range Explosion Range

+1 Poison Damage Poison Damage

5% > 7.5% Slowdown Slowdown


Sell Price changes to Cash$1,066

Flower Power
Level 3 • Cost: Cash$4,500

+16 Damage Damage

+2.5 Range Range

•1.125 > 1.025 Firerate Firerate

+200 Health Health

+13 Damage Damage

+1.5 Range Range

+200 Health Health

4 > 4.5 Explosion Range Explosion Range

+2 Poison Damage Poison Damage

0.75 > 0.6 Poison Tick Poison Tick

•50 Damage Damage

•30 Range Range

•3.025 Firerate Firerate

•20 Spawnrate Spawnrate

•20 Lifespan Lifespan

•400 Health Health

•1 Confusion Time Confusion Time

•4 Confusion Cooldown Confusion Cooldown

•Flying Detection Flying Detection


Sell Price changes to Cash$2,566

Botanical Berserker!
Level 4 • Cost: Cash$20,000

+1 Unit Queue

+27 Damage Damage

+3 Range Range

1.025 > 0.825 Firerate Firerate

+400 Health Health

+20 Damage Damage

+1.5 Range Range

1.825 > 1.525 Firerate Firerate

+400 Health Health

+1 Poison Damage Poison Damage

0.6 > 0.65 Poison Tick Poison Tick

4.5 > 5.2 Poison Time Poison Time

7.5% > 12.5% Slowdown Slowdown

+85 Damage Damage

+5 Range Range

3.025 > 2.775 Firerate Firerate

+400 Health Health

1 > 1.25 Confusion Time Confusion Time


Sell Price changes to Cash$9,233

Statistics

[edit]
Disable Rate of Fire BugEnable Rate of Fire Bug
Biologist Stats
Level Cost Total Cost Firerate Range Deadzone Range Unit Queue Projectile Speed
0 Cash$750 Cash$750 11.025 4 1.5 1 5
1 Cash$600 Cash$1,350 11.025 4 1.5 1 5
2 Cash$1,850 Cash$3,200 11.025 4 1.5 2 5
3 Cash$4,500 Cash$7,700 11.025 4 1.5 2 5
4 Cash$20,000 Cash$27,700 11.025 4 1.5 3 5
Sunflower Stats[1]
Level Health Damage Spawnrate Firerate Lifespan Range Detections DPS Max DPS[2] Min Cost Efficiency Max Cost Efficiency[2]
0 50 6 20 1.11.125 20 15 N/A 5.455.33 5.455.33 Cash$137.61Cash$140.71 Cash$137.61Cash$140.71
1 100 10 20 1.11.125 20 15 N/A 9.098.89 9.098.89 Cash$148.51Cash$151.86 Cash$148.51Cash$151.86
2 200 12 20 1.11.125 20 17 Hidden 10.9110.67 21.8221.33 Cash$293.31Cash$299.91 Cash$146.65Cash$150.02
3 400 28 20 11.025 20 19.5 Hidden 2827.32 5654.63 Cash$275Cash$281.84 Cash$137.5Cash$140.95
4 800 55 20 0.80.825 20 22.5 Hidden 68.7566.67 206.25200 Cash$402.91Cash$415.48 Cash$134.3Cash$138.5
Ivy Stats[1]
Level Health Damage Poison Damage Spawnrate Firerate Poison Tick Lifespan Range Explosion Range Poison Time Slowdown Detections Total Elapsed Damage[13] DPS Max DPS[4] Min Cost Efficiency Max Cost Efficiency[4]
1 100 8 1 20 22.025 0.75 20 14 3 4.5 5% Lead 6 5.33[14]5.28[15] 5.33[16]5.28[17] Cash$253.28Cash$255.68 Cash$253.28Cash$255.68
2 200 12 2 20 1.81.825 0.75 20 15.5 4 4.5 7.5% Lead 12 9.33[18]9.24[19] 18.67[20]18.48[21] Cash$342.98Cash$346.32 Cash$171.4Cash$173.16
3 400 25 4 20 1.81.825 0.6 20 17 4.5 4.5 7.5% Lead 30 20.56[22]20.37[23] 41.11[24]40.73[25] Cash$374.51Cash$378.01 Cash$187.3Cash$189.05
4 800 45 5 20 1.51.525 0.65 20 18.5 4.5 5.2 12.5% Lead 40 37.69[26]37.2[27] 113.08[28]111.6[29] Cash$734.94Cash$744.62 Cash$244.96Cash$248.21
Nightshade Stats[1]
Level Health Damage Spawnrate Firerate Lifespan Range Confusion Time Confusion Cooldown Detections DPS Max DPS[2] Min Cost Efficiency Max Cost Efficiency[2]
3 400 50 20 33.025 20 30 1 4 Flying 16.6716.53 33.3333.06 Cash$461.91Cash$465.82 Cash$231.02Cash$232.91
4 800 135 20 2.752.775 20 35 1.25 4 Flying 49.0948.65 147.27145.95 Cash$564.27Cash$569.37 Cash$188.09Cash$189.79

Notes

[edit]
  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Not affected by any buffs or debuffs.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 DPS is multiplied by the Biologist's unit queues.
  3. ↑ Total Elapsed Damage is calculated as Poison Damage × (Poison Time ÷ Poison Tick).
  4. ↑ 4.0 4.1 4.2 4.3 DPS is multiplied by the Biologist's unit queues. As poison can only be applied to an enemy once, poison DPS will only be accounted for once.
  5. ↑ 4 Normal DPS + 1.33 Poison DPS
  6. ↑ 4 Normal DPS + 1.33 Poison DPS
  7. ↑ 6.67 Normal DPS + 2.67 Poison DPS
  8. ↑ 13.33 Normal DPS + 5.33 Poison DPS
  9. ↑ 13.89 Normal DPS + 6.67 Poison DPS
  10. ↑ 27.78 Normal DPS + 13.33 Poison DPS
  11. ↑ 30 Normal DPS + 7.69 Poison DPS
  12. ↑ 90 Normal DPS + 23.08 Poison DPS
  13. ↑ Total Elapsed Damage is calculated as Poison Damage × (Poison Time ÷ Poison Tick).
  14. ↑ 4 Normal DPS + 1.33 Poison DPS
  15. ↑ 3.95 Normal DPS + 1.33 Poison DPS
  16. ↑ 4 Normal DPS + 1.33 Poison DPS
  17. ↑ 3.95 Normal DPS + 1.33 Poison DPS
  18. ↑ 6.67 Normal DPS + 2.67 Poison DPS
  19. ↑ 6.58 Normal DPS + 2.67 Poison DPS
  20. ↑ 13.33 Normal DPS + 5.33 Poison DPS
  21. ↑ 13.15 Normal DPS + 5.33 Poison DPS
  22. ↑ 13.89 Normal DPS + 6.67 Poison DPS
  23. ↑ 13.7 Normal DPS + 6.67 Poison DPS
  24. ↑ 27.78 Normal DPS + 13.33 Poison DPS
  25. ↑ 27.4 Normal DPS + 13.33 Poison DPS
  26. ↑ 30 Normal DPS + 7.69 Poison DPS
  27. ↑ 29.51 Normal DPS + 7.69 Poison DPS
  28. ↑ 90 Normal DPS + 23.08 Poison DPS
  29. ↑ 88.52 Normal DPS + 23.08 Poison DPS


Towers
Starter Scout • Sniper • Paintballer • Demoman • Boomerang • Slime Trooper • Soldier
Intermediate Freezer • Assassin • Militant • Shotgunner • Hunter • Pyromancer • Ace Pilot • Medic • Farm • Electroshocker • Rocketeer • Trapper • Military Base • Crook Boss
Advanced Commander • Warden • Cowboy • DJ Booth • Tesla • Saboteur • Minigunner • Ranger • Pursuit • Gatling Gun • Turret • Mortar • Mercenary Base
Hardcore Brawler • Necromancer • Accelerator • Engineer • Hacker
Evolved Operator • Enforcer • Kingpin • Juggernaut
Golden Perks Golden Minigunner • Golden Crook Boss • Golden Pyromancer • Golden Scout • Golden Cowboy • Golden Soldier • Golden Demoman • Golden Snowballer
Exclusive Gladiator • Commando • Slasher • Frost Blaster • Archer • Swarmer • Toxic Gunner • Sledger • Executioner • Elf Camp • Jester • Cryomancer • Hallow Punk • Harvester • Snowballer • Elementalist • Firework Technician • Biologist • Warlock • Spotlight Tech • War Machine • Mecha Base
Unavailable Mine • Sentry • Moderator • Railgunner • Twitgunner • Void Miner • Combatant • Crystallizer • Pulse Trooper • Time Dilator
Units
Military Base Humvee • Humvee 2 • Humvee 3 • Tank • Railgun Tank • Motorcycle (Removed) • Truck1 (Removed) • Truck2 (Removed) • Truck3 (Removed)
Engineer Sentry • Rifle Sentry • Minigun Sentry • War Machine Sentry
Crook Boss Pistol Goon • Tommy Goon 1 • Tommy Goon 2 • Body Guard (Removed) • Body Guards 1 (Removed) • Body Guards 2 (Removed) • Golden Crook (Removed) • Golden Mafia (Removed) • Crook (Removed) • Mafia (Removed)
Golden Crook Boss Golden Pistol Goon • Golden Tommy Goon 1 • Tommy Goon 2 • Golden Body Guard (Removed) • Golden Body Guards 1 (Removed) • Golden Body Guards 2 (Removed)
Commander Gunner APC • Missile APC
Mercenary Base Rifleman • Grenadier • Riot Guard • Field Medic
Enforcer Swat Van • Swat Van Gunner
Kingpin Lackey • Money Runner • Bouncer • Contractor
Elf Camp Elf • Snowball Elf • Cannoneer Elf • Bomber Elf • Guardian Elf • Gunner Elf • Gift Bomber • Ripped Elf
Necromancer Skeleton • Sword Skeleton • Giant Skeleton • Skeleton Knight • Hallow Guard • Executioner Skeleton
Elementalist Ice Turret
Biologist Sunflower • Ivy • Nightshade
Consumables Molten Monster • Fire Ducky • Confusion Ducky • Ice Ducky • Poison Ducky • Shock Ducky • Crab
Enforcer SWAT Van (Removed)
Mecha Base Mark I • Mark II • Mark III • Mark IV • Mark V • XR600 (Removed) • Armored XR600 (Removed) • XR700 (Removed) • XR900 (Removed) • XR901 (Removed)
Trick or Threat Town Citizen 1 (Removed) • Citizen 2 (Removed)
Commands Only Monster • Jeep (Removed) • Soldier (Removed)
Tower Gallery Pages
Starter Scout • Sniper • Paintballer • Demoman • Boomerang • Slime Trooper • Soldier
Intermediate Freezer • Assassin • Militant • Shotgunner • Hunter • Pyromancer • Ace Pilot • Medic • Farm • Electroshocker • Rocketeer • Trapper • Military Base • Crook Boss
Advanced Commander • Warden • Cowboy • DJ Booth • Tesla • Saboteur • Minigunner • Ranger • Pursuit • Gatling Gun • Turret • Mortar • Mercenary Base
Hardcore Brawler • Necromancer • Accelerator • Engineer • Hacker
Evolved Operator • Enforcer • Kingpin • Juggernaut
Golden Perks Golden Minigunner • Golden Crook Boss • Golden Pyromancer • Golden Scout • Golden Cowboy • Golden Soldier • Golden Demoman • Golden Snowballer
Exclusive Gladiator • Commando • Slasher • Frost Blaster • Archer • Swarmer • Toxic Gunner • Sledger • Executioner • Elf Camp • Jester • Cryomancer • Hallow Punk • Harvester • Snowballer • Elementalist • Firework Technician • Biologist • Warlock • Spotlight Tech • War Machine • Mecha Base
Unavailable Sentry • Moderator • Railgunner • Twitgunner • Void Miner • Combatant
Unit Gallery Pages
Military Base Humvee • Humvee 2 • Humvee 3 • Tank • Railgun Tank
Engineer Sentry • Rifle Sentry • Minigun Sentry • War Machine Sentry
Crook Boss Pistol Goon • Tommy Goon 1 • Tommy Goon 2
Golden Crook Boss Golden Pistol Goon • Golden Tommy Goon 1 • Golden Tommy Goon 2
Commander Gunner APC • Missile APC
Mercenary Base Rifleman • Grenadier • Riot Guard • Field Medic
Kingpin Lackey • Money Runner • Bouncer
Elf Camp Elf • Snowball Elf • Cannoneer Elf • Bomber Elf • Guardian Elf • Gunner Elf • Gift Bomber • Ripped Elf
Necromancer Skeleton • Sword Skeleton • Giant Skeleton • Skeleton Knight • Hallow Guard • Executioner Skeleton
Elementalist Ice Turret
History Pages
Starter Scout • Sniper • Paintballer • Demoman • Slime Trooper • Soldier
Intermediate Freezer • Assassin • Militant • Shotgunner • Hunter • Pyromancer • Ace Pilot • Medic • Farm • Electroshocker • Rocketeer • Trapper • Military Base • Crook Boss
Advanced Commander • Warden • Cowboy • DJ Booth • Tesla • Saboteur • Minigunner • Ranger • Pursuit • Gatling Gun • Turret • Mortar • Mercenary Base
Hardcore Brawler • Necromancer • Accelerator • Engineer • Hacker
Evolved Operator • Kingpin • Juggernaut
Golden Perks Golden Minigunner • Golden Crook Boss • Golden Pyromancer • Golden Scout • Golden Cowboy • Golden Soldier • Golden Snowballer
Exclusive Gladiator • Commando • Slasher • Frost Blaster • Archer • Swarmer • Toxic Gunner • Sledger • Executioner • Elf Camp • Jester • Cryomancer • Hallow Punk • Harvester • Snowballer • Elementalist • Firework Technician • Biologist • Warlock • Spotlight Tech • War Machine • Mecha Base
Unavailable Sentry • Twitgunner • Combatant
Retrieved from "https://tds.wiki/w/Biologist/History?oldid=631433"