How to Beat Plague Inc. Parasite on Normal

Updated on March 11, 2015

Beating Parasite on Normal

Welcome to my tutorial on how to beat Plague Inc.'s Parasite on Normal. Parasite is similar to Virus. However, Parasite has an added feature called Symbiosis. It allows symptoms to prevent the discovery of the parasite. This helps us a lot. While Parasite is very simple in nature, I've redesigned this tutorial recently in order to build points fast.

Let's get started!

First and foremost:

  • We will be allowing symptoms.
  • Also, symbiosis is found under abilities.


  1. Start your Parasite in South Africa, or another hot country of your choice.
  2. Build DNA Points to 30.
  3. Get Water Transmission 1.
  4. Get Water Transmission 2.
  5. Build DNA Points to 30.
  6. Get Air Transmission 1.
  7. Get Air Transmission 2.
  8. Build DNA Points to 100.
  9. Get Drug Resistance 1.
  10. Get Cold Resistance 1.
  11. Get Cold Resistance 2.
  12. Get Heat Resistance 1.
  13. Get Heat Resistance 2.
  14. Get Symbiosis 1.
  15. Get Symbiosis 2.
  16. Build DNA Points to 50.
  17. Get Drug Resistance 2.
  18. Build your DNA points until everyone is infected.
  19. Work your remaining points into the symptoms.
  20. Reach Total Organ Failure first.
  21. You can then spend any remaining points wherever you see fit.

Congratulations! You have beat Parasite on Normal.

Video: Parasite on Normal Walkthrough (Note: Doesn't Follow My Tutorial But This Works Also)

About the Author

Ashleign is my alias and a character I play on the internet. I have used this nickname for several years. I have worked in IT for about four years. Before that, I worked as an EMT in EMS. There, I drove the ambulance mostly, but I can say that I was in the room while a life was actually being saved—that was a cool thing to see. Bless our troops, fire, police, and EMS workers they have an incredibly hard job, and I love them with every bit of my heart. Especially the police.

I've been working very hard on these tutorials for you and appreciate any and all feedback you want to provide. Please let me know how you did, I would love to hear from you!

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    • profile image

      warpaint408 

      4 weeks ago

      This was so easy to follow had no trouble at all! Done in 667 days with only 30% cure complete. 19,640 points! Thank you!!

    • profile image

      Demig0d 

      4 weeks ago

      Once again your tutorial has surpassed my expectations i was able to beat brutal with these stats 943 days 59% cure and and score of 13740

    • profile image

      Someone 

      8 weeks ago

      It worked, until the end. I didn't have enough to get to Total Organ Failure, the cure was too fast. Any way to stall for more DNA?

    • profile image

      Huwar 

      2 months ago

      1023 days 79% cure I had to get the DNA looking things to throw the cure back to around 60-65 percentage (%) Otherwise cure would have won! :D Thanks for carrying me through the whole game! I don't have many things left now. As said above thanks. These must be very hard to make, VV as said below too Thanks for your efforts put into this webpage/walkthrough. Really helps.

    • profile image

      Pradhuman 

      3 months ago

      Thanks for your efforts

    • profile image

      11fastgamer 

      6 months ago

      worked for me, but got halfway spotted. so i did genetic reshuffle 1 and i killed evryone

    • profile image

      Veronica 

      8 months ago

      I switched it up a bit. I won the game by devolving any mutations until everyone was infected. Instead of using points on transmission, I evolved all three symbiosis first, early in the game. As long as you make sure every last human is infected before any symptoms are evolved, you should be good. Aim for total organ failure and coma. Oh and make sure you use drug resistance and genetic hardening.

    • profile image

      John 

      10 months ago

      I just want to say. this is also very effective on brutal as well. helped me out both times. keep up the good work

    • profile image

      Natasha 

      13 months ago

      Thank you again! Followed. 51% cured. Started in Saudi Arabia only change.

    • profile image

      14 months ago

      Did everything it said and went fine.

    • profile image

      Thanatos 

      15 months ago

      Did it already 2 times and no results. Disease was caught really soon and the cure was really advanced at a certain point. Only got to kill 1B people and 2,3B at both tries. But hey, still gonna try as many as needed. The hardest one by now.

    • profile image

      Mitchel 

      15 months ago

      Placed Symbiosis before transmission this is better to stay in stealth. Infected everyone and yhey didn't notice my disease.

    • profile image

      aris 

      19 months ago

      I don't like when you kill over 7b and don't win.

    • profile image

      Someone 

      19 months ago

      The symbiosis needs to be placed more or less first, i'm always detected midway through the part where I need to save up to 100 points

    • profile image

      Parasite 

      19 months ago

      719 days 68% cure,

      the symbiosis does nothing, I upgraded it to max early on and it still got detected easily.

    • profile image

      Me 

      19 months ago

      Symbiosis needs to take more of an early priority. With this walkthrough, it gets noticed and a cure started too quickly. They complete the cure right about the time you're able to progress to multi organ failure. Level 3 symbiosis early on, even before climate resistance made a MASSIVE difference. I was killing them off well before they ever noticed the disease.

    • profile image

      Greg 

      20 months ago

      As long as you just keep devolving all symptoms until everyone is infected, you can win. Once everyone is infected, put points into the symptoms and watch the world die.

    • profile image

      Alex 

      20 months ago

      756 days and 66% cure

    • profile image

      AndrewGaming 

      21 months ago

      Mostly, you must have to develope the Drug Resis, Genetic Reshuffle, and more to keep the scientist working. You can also develope Paranoia to make countries don''t work with the cure

    • profile image

      Angus 

      21 months ago

      Thanks, this works well

    • profile image

      orteam 

      22 months ago

      Worked :)

    • profile image

      Ana 

      22 months ago

      794 days 48% cure! Another tutorial that woks but I change some things at the end. I devolved transmission and heat and cold resistance and also evolved drug resistance several times otherwise they would cure me

    • profile image

      Kyoki 

      22 months ago

      Started in india and it was so much better

    • profile image

      Ra 

      22 months ago

      THIS DOESNT WORK I DO IT 5 TIMES!

      I FOLOW YOUR INSCRUCTES AND THEY ALWAYS LEFT OR CURE IS READY

    • profile image

      Samantha 

      22 months ago

      987 days. 62% cure. Victory!

    • profile image

      Ry 

      2 years ago

      I tried it once your way with letting the symptoms go however they pleased and they started developing a cure by the time 20% of the world was in infected and I failed by the time half the world was infected then I ran it again and de evolved all the symptoms that went nuts and i beat it

    • profile image

      Anonymous 

      2 years ago

      I named mine shitface!

    • profile image

      Anonymouse 

      2 years ago

      Its all about making them crazy and think there's really nothing wrong while they are actually infected and dying quickly.

    • Jen Anderson profile image

      Jen Anderson 

      2 years ago

      This worked for me; 980 days and 70% cure. I would also recommend using DNA points for genetic hardening and reshuffles, as others have said. Thanks!

    • profile image

      Me 

      2 years ago

      Didn't work. Have to upgrade sheep transmission and sterile transmission.

    • profile image

      Kaz 

      2 years ago

      This doesn't work....only way it does is to add genetic hardening and a couple of genetic re shuffles

    • profile image

      Mystery 

      2 years ago

      srry didn't work I try about 3 times

    • profile image

      Rozack 

      2 years ago

      48% Cure 643 Days Total Score:11940

    • profile image

      Jake 

      2 years ago

      This doesn't work at all on multiplayer.

    • profile image

      a random dude 

      2 years ago

      Als go down from rash. Fairly deadly upgrade there.

    • profile image

      Jerod Hawkins 

      2 years ago

      I recommend using your extra points for genetic hardning and reshuffles

    • Ashleign profile imageAUTHOR

      Ashleign 

      2 years ago

      Just did an update video on these tutorials check them out at www.youtube.com/chillbillysauce

    • profile image

      2 years ago

      99% cure.... close call, but made it.

    • profile image

      Rob 

      2 years ago

      Marry me?

    • profile image

      Death 

      2 years ago

      51% cure, 841 days

    • profile image

      MaxWasy 

      2 years ago

      Good but took a long time

    • profile image

      Emma 

      2 years ago

      Used this on brutal. 807 days.

    • profile image

      Paula 

      3 years ago

      it worked for me, but I reached 99% and then I finally reached enough DNA-points for a genetic reshuffle.

    • profile image

      Mr. It 

      3 years ago

      Towards the end I had to make some adjustments to complete the level, but aside from that, this works.

    • profile image

      Justin hunt 

      3 years ago

      Worked well for besides it almost going to 95%

    • profile image

      Morriganna 

      3 years ago

      If you do symbiosis earlier on it is extremely more effective

    • profile image

      Papyrus 

      3 years ago

      Worked! but i din't follow esacly i worked to the organ failure from coughing

      and Worked!

    • profile image

      42ndsheep 

      3 years ago

      did not work, to fix: before you go for total organ failure (I didn't even get to it for a really long time and would recommend going there from coughing) get your points to 100, also devolve all symptoms until u infect everyone in the world

    • profile image

      Hitman 

      3 years ago

      The first time I tried this, I followed everything step by step and "Shit" got detected to early and I lost, with Greenland infected but majorly healthy. Immediately after that I decided to try my own method. Firstly, start in a hot country, so that all other hot countries con be infected in due time. Please note that using this method you'll have to play in fast forward, as you'll usually win in 900 days or more depending on how fast you evolve things. By the way, in the beginning, if you have unlocked the gene for bonus DNA when devolving, then use it. This'll make things easier later in the game. Wait till you get like 50 DNA points, then completely evolve the symbiosis to level 3. This will ensure that your parasite will not be detected, and then get Air 1 & 2, Water 1 and if you have any points left and you can afford it, Drug Resistance 1. Then your parasite could mutate a few symptoms, but don't bother. Now wait till you get 50 or more DNA points so that you can get Drug Resistance 2 and Genetic Hardening 1. Now keep in mind that you should NOT evolve ANY symptoms as it'll lead to either people dying faster or your parasite getting detected faster. Devolve any lethal symptom if it mutates. Now save up your DNA points till you infect everyone in the world or the message "There are no more healthy people left in the world" pops up. Now your main objective is to get to Total Organ Failure first. This will ensure that people die fast. After getting enough DNA points get Necrosis and Hemorrhagic Shock. Now the death rate skyrockets, and you'll have a steady income of DNA points. Now get All of the Genetic Reshuffle (1,2 and 3). Now all you need to do is sit back and watch the chaos. Congratulations! You've beaten Parasite on Normal!

      If this doesn't work please get back to me. I'll then work up another strategy.

    • profile image

      Mokona 

      3 years ago

      Nice tutorial! I started in Africa and it has worked!! Thank you ;)

    • profile image

      Foullily 

      3 years ago

      It almost got me, but without symbiosis 3 and a few more drug resistances while everyone was being killed by TOF i woulda lost. However, its a good walkthrough otherwise, just a few tweaks or quick thinking on the players part :3

      Thank you

    • Higherlevel1 profile image

      Higherlevel1 

      3 years ago

      They cure it before i can infect everyone i think allowing symptoms early on is doing it going to try again can u please update

    • profile image

      TRex 

      3 years ago

      Nice tutorial but unfortunately it didn't work for me. Greenland was last and slowest to get infected and the cure went super fast. I'm going to try this but fully evolve symbiosis to see what happens.

      Thanks!

    • profile image

      Nagrom 

      3 years ago

      I did like your tutorial but I just didn't work for me, so I tried it out on my own and I did good. All you really have to do is evolve all three of the symbiosis,

      water resistance(to the maximum)

      air transmission(to the maximum)

      cold and heat resistance all the way. Devolve your symptoms until everyone in the world is sick, after that evoke your symptoms until you reach Total Organ Failure . It's how I won. But I still love you and your tutorials, honestly

    • profile image

      allie. 

      3 years ago

      I'm a big fan of your work but I've done this one 6 times and it hasn't worked.

      Please help..

    • profile image

      wat 

      3 years ago

      That may have been my fault for naming it "Twerking" ... as soon as it was discovered, the world was quite eager to eradicate it.

      Apparently I don't learn, because my next attempt was "YOLO" and that was spontaneously detected and destroyed with extreme prejudice as well.

      Let's see how "Swag" does...

    • profile image

      wat 

      3 years ago

      Spontaneously discovered during step 5, without any symptoms. That didn't go well.

    • profile image

      (: 

      3 years ago

      i don't know what i dis wrong but i had no symptoms and people were treating my disease like it was really deadly lol but the cure was complete before everyone got infected ):

    • profile image

      Flutter 

      3 years ago

      This tutorial only works about 30% of the time. The scientists will almost instantly find the disease.

    • profile image

      Ray 

      3 years ago

      Should I devolve the transmissions and abilities once everyone's infected?

    • profile image

      Lrxx 

      3 years ago

      Darn, only 15,000 survived in Greenland. Got it infected but in the end some of them survived. Gonna try again, thanks for your tutorial though!

    • profile image

      Josh 

      3 years ago

      Im struggling to complete it, ive played a few times with these exacy instructions but they keep finding the parasite really early and curing it :P

    • profile image

      Liam 

      3 years ago

      This Works. But my computer forces to shut down immediately but i will try again. I force to evolve an parasite's abilites because of a high severity. Nice Tutorial.

    • profile image

      Braydeng71 

      4 years ago

      DNA sequence : Standard

      Difficulty: Normal

      Time: 1062 Days

      Cure progress: 69% complete

      Score: 4080

      Thanks for the tutorial! Did I do good?

    • profile image

      cindy 

      4 years ago

      have you done or will you do brutal and mega tutotials?

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Or Sir.. Doesn't matter.

    • profile image

      Zalel 

      4 years ago

      Perfect! Thank you uhhh maam?

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      I'm not sure. I will check, I don't have it on my phone anymore.

    • profile image

      0897867564 

      4 years ago

      There is no symbiosis on the cell phone version. Ignore?

    • profile image

      wawawaifus 

      4 years ago

      But I still won

    • profile image

      wawawaifus 

      4 years ago

      Not enough DNA points

    • profile image

      Lolcraft 

      4 years ago

      You can actually go without drug resistance 2. It'll take longer but you can kill a lot faster though.

    • profile image

      meggan 

      4 years ago

      Mutations?

    • profile image

      August 

      4 years ago

      So I followed this exactly, but the parasite was noticed, and the cure beat me. Is this normal?

    • profile image

      Tristan 

      4 years ago

      I would like to say that you make very good tutorials but I would buy symbiosis 1 and 2 in the bwgging because I had a problem with it getting noticed when it had no symptoms and no way to get noticed

    • profile image

      JoMoFo 

      4 years ago

      Worked great! And in only 798 days :D

    • profile image

      irishjay91 

      4 years ago

      used your tutorial on fungus and it helped me extremely and using this tutorial on parasite haven't been discovered yet and its my first try thanks for your help

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Welcome!

    • profile image

      Test 

      4 years ago

      Wow ! This is REALLY great tuts !

      I beat parasite normal mode in 843 days, 13% cure, and have scores 35760 by ur tuts !

      Thanks a lot, dude !

    • profile image

      Ryan 

      4 years ago

      Great tutorial, thank you. Just wanted to say in this tutorial you called it Air and Water resistance when it's really transmission. I caught on, but maybe consider updating to avoid confusion. Thanks again!

    • profile image

      wpedd 

      4 years ago

      Cheers for the help, named all my diseases Facebook

      XD

    • profile image

      wendy 

      4 years ago

      Thank u! I've been stuck on Parasite...always so close! I hope it's slow at work so I can do this!

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Well thank you for the kind words and the comment :)

    • NitroQueen profile image

      NitroQueen 

      4 years ago

      Thank you SOOOOO much for your tutorials! This one definitely helped me, although I tweaked it a little bit. I had to use Symbiosis sooner than you've listed because my parasite kept mutating and giving me symptoms. I know you said to allow symptoms, but I had to devolve them for a while due to continually being "discovered" too early and then the cure would start, but not enough DNA points came around after that for me to counter it...and the cure was going FAST.

      But once I did that...DNA points popped up quickly. I waited until everyone was infected and then unleashed terror. I owe it to your tutorial to be sure!

      DNA sequence : Complex

      Difficulty: Normal

      Time: 897 Days

      Cure progress 20%

      Score: 12780

      Keep up the great work!! YOU ROCK! :)

    • profile image

      Sue 

      4 years ago

      Hey,

      Every step went extremely well. In this level it was much more easier to gain DNA points. Amazing tutorials, keep it up!

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Try Simian Flu before you check out my tutorial.. There's some serious challenge there.. Although it only took me a full day to figure out a solid tutorial for it.

    • profile image

      Misdrhaal 

      4 years ago

      Difficulty : Normal

      Day : 920

      Score : 38220

      Cure : 14%

      Investments to counter the cure : 0 point

      I started in Russia, stacked points to up one level in each type of contamination triggering mutation, then maxed out the air and water spreading.

      And then waited, waited, waited, undoing every new symptom. Then the message indicating that the whole world was infected poped up. (about 800 days)

      So i've unleashed hell with more than 130 DNA points (and more coming the weeks after^^)

      They started the cure juste after the first symptoms, but that was too late, definitely. The diseases killed everyone in a blink of an eye:p

      And it seems to be an always win strategy? Quite a shame for the moment, i will try prion.

    • profile image

      David Rinaldi 

      4 years ago

      Days - 1025

      Cure - 51%

      Scores - 5710

      Good!

    • profile image

      Jonathan 

      4 years ago

      Water RESISTANCE? Heat RESISTANCE? What about extreme bioareosol?

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Haha. Thanks Kahdha.

      It's really no trouble, walkthroughs can be confusing. Anyway I can improve helps me dearly.

    • profile image

      Kahdha 

      4 years ago

      If you are reading his tutorial ia because he knows more than you.. Don't try to correct him so you can appear smarter, don't be that guy, is air 1 and air 2 it's not that hard to figure it out

    • profile image

      Jinx 

      4 years ago

      Worked perfectly on brutal as well. Thanks! :)

    • profile image

      nyeh 

      4 years ago

      Do you allow mutations or no¿

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Spoon Frustrated. I think I will name it that for the Bio-weapon video.

    • profile image

      Carole 

      4 years ago

      By spoon frustrated, I meant soooo frustrated. Of course, auto correct.

    • profile image

      Carole 

      4 years ago

      You rock, girl. Thanks a load for the tutorials. I love the game but in was getting spoon frustrated!

      And I think with your mini-bio that you're an amazing person with a deep heart, and I want to say that even your short summary touched my heart, and I can admire the part of you that you display to us.

      Once again, thanks, and happy gaming! :D

    • Ashleign profile imageAUTHOR

      Ashleign 

      4 years ago

      Good news. Just got nano done tonight. Will have a video and tutorial posted soon.

    • profile image

      :3 

      4 years ago

      Nevermind … i made a dumb question

    • profile image

      :3 

      4 years ago

      Do you allow mutations?

    • profile image

      Pika 

      4 years ago

      Pls do nano virus

    working

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