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Plague Tree (Vorona Cirus Treesease)

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developed by

developed by Vorona gamedev

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completed

190 ratings

rated 3.8 stars, 190 ratings.
tmtjsactivepolynomialgoogology

Posted June 8, 2023. Updated June 7, 2024. Played 53271 times for a total of 122495 hours.

description


The game's goal is to reach as many cases of the COVID-19 disease as possible. As you go down layers, you unlock things that greatly improve virus spread and strength, way beyond what the real virus could possibly accomplish.

latest update


Plague Tree (Vorona Cirus Treesease) v0.6.25 June 7, 2024

v0.6.25

  • Added
  • Added 9
  • Added 11 UnBoosted Virus upgrades
  • Added 15 UnBoosted Virus milestones
  • Added an UnBoosted Virus buyable
  • Added 3 Booster upgrades
  • Added an Unvaxxed Layer upgrade
  • Added 6 Anti-Distancing upgrades
  • Added 6 Achievements
view all updates

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newest comments


cow September 10, 2025
+1comment score: 1

grinded this game since 2024, played since 2021(?), currently at 19 anti-vaxxed vaxxers with one upgrade in the upgrade tree

Ahnika10 September 2, 2025
+2comment score: 2

Finally got past vaccine challenges. Never figured out why CTNA glows red. I'm assuming a bug.

Hint:

Better hint:

Just want the answer?

zwaxx September 2, 2025
+1comment score: 1

@ConCakKhongLo
Did you ever figure this out? I'm at the same point with CTNA glowing red in challenge - but unable to find any upgrades.

danondrager September 1, 2025
0comment score: 0

Bro the Updrages2 tab in the mRNA is impossible

Giltroof August 6, 2025
+1comment score: 1

My save reset for some reason

top comments


crust_cheese June 29, 2023
+41comment score: 41

As others have pointed out, this game just completely turns on its head once you unlock Fatality. It becomes very slow and essentially revolves around getting different buyables across multiple tabs. That's a shame, as the game up to that is quite fun and engaging.

lingluo June 26, 2023
+21comment score: 21

@unpogged you can hold shift to bulk attempt mutate. It's important but the game doesn't make it clear.

rajakyoza January 31, 2024
+18comment score: 18

the game is super lag for me, Average tps : 0.18 s/tick

dudial October 21, 2023
+17comment score: 17

i really would like to play this tree, but it is unplayable on my small machine.
it's the only tree i can't play. profiling in chrome shows that updateTemp, updateTempData use 100% cpu even after hard reset with just one virus.
that isn't the case in other tree mods, so i assume there are big optimization problems in the code.

Letorin counter June 27, 2024
+14comment score: 14

/r JanexTheHEro1
zero deaths and 'ZERO' deaths are achieved by going into fatality challenge 4 and disabling the multiplier boost autobuyer (combine casualty challenge 1 with fatality challenge 4 for 'ZERO' deaths)

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