ongoing
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Parasite Infection is a browser based adult adventure game with various fetishes and hand-drawn graphocs.
Get aboard a hostile alien vessel where your body becomes the center of a biological experiment. Select your character to be male or female, resist or embrace the parasites.
Get aboard a hostile alien vessel where your body becomes the center of a biological experiment. Select your character to be male or female, resist or embrace the parasites.
About this game
- Genre
- Adult RPG
- Developer
- ParasiteInfection
- Release date
- September 2021
- Updated
- March 2025 (version r1.36)
- Status
- Ongoing
- Game Engine
- Twine (play in your browser)
What's new in version r1.36?
r1.36
-Adding x5 and x10 liquids works correctly. (I know, it is obsolete, but a bit annoying these red messages.)
-Returned the detection section on the cheat page in part 5.
-Collecting liquids in parts 4 and 5 works correctly for the 3rd row of breasts.
-Fixed a bug that broke the sequence of the carrier's mind hack. (maybe partially)
-The "Scissors" pose is only available when both participants have a vagina.
-Fixed a lexical error in part 4, when the infested were called infected in the report.
-Fixed the display of the location on the map in part 5.
-Images of the process of pushing choker eggs for the Antari race are displayed.
-"Inseminate All" now does not reduce arousal below the minimum value (sometimes works only if you change the room)
-Fixed the image of NPC Will.
r1.36
-Adding x5 and x10 liquids works correctly. (I know, it is obsolete, but a bit annoying these red messages.)
-Returned the detection section on the cheat page in part 5.
-Collecting liquids in parts 4 and 5 works correctly for the 3rd row of breasts.
-Fixed a bug that broke the sequence of the carrier's mind hack. (maybe partially)
-The "Scissors" pose is only available when both participants have a vagina.
-Fixed a lexical error in part 4, when the infested were called infected in the report.
-Fixed the display of the location on the map in part 5.
-Images of the process of pushing choker eggs for the Antari race are displayed.
-"Inseminate All" now does not reduce arousal below the minimum value (sometimes works only if you change the room)
-Fixed the image of NPC Will.
r1.35
* [Part 2] Changed infestable stores requirements for a female from "having a penis less than 10" to "looking like a female and having a vagina"
r.1.34
Additions & changes:
* [Part 3-4] Bridged the transitioning of picked host with infested parasites to be usable in part 4 from part 3
* [Cheats->Walkthroughs] Added a small description for those who stuck and want to progress from part 4 to 5
* [Part 2-3] Added transition with biosuits and other infested parasites. If MC is not equipped with a biosuit there will be a warning in red color about not being able to progress to part 3
* [Part 1+] Character that wears a merged starfish suit now gestates the parasites at an increased speed rate by 2
* [Part 2] Added to the self inspection page in the list of characters met the status of infestation with a biosuit
* [Part 1+] Character with a canal infested vagina now gestates the biosuit in their womb with an increased speed rate by 1
* [Part 5] Added mindhack lvl increase possibility if host orgasms to “Induce masturbation” option (The full mindhack event descriptions will be skipped, while increasing mindhack lvl with this option)
* [Part 5] Now when the host is over aroused - the passage will change automatically to the masturbation page. Increased arousal drop from ordinary masturbation 5→10
* [Part 5] Added a text descriptor of pheromone infestation progress in base rooms that pheromone release was initiated at least once
* [Part 5] While in control of host added the option to harvest fluids and parasites from an infested nearby NPC that you can approach without extra passage entries
Bug fixes & corrections:
* [Part 4] Fixed conditions in the lower bedroom main house for the chosen host from previous parts to be displayed correctly
* [Part 2] Fixed incorrect part checkers for displaying infested parasites on body of Amy
* [Part 4] Fixed a bug where possessing another body from previous chapters that is not Chloe added that character body to the harem member list
* [Part 2] Fixed a bug where the player can inject a biosuit into a character with already gestating biosuit
* [Part 2] Excluded Rene from ‘During the day’ event list
* [Part 2] Fixed bug where gestating a biosuit would still allow to create a new biosuit larva on top of it
* [Part 2] Added space key usage to progress through morning mind assimilation passage
* [Part 2] Added audio stop of infestation music after doing any infestation with captured Joan
* [Part 2] Parasite inventory placement fix back to profile image top location
* [Part 5] Fixed ventilation traversal in werm form in the night time phase. Space button assigned for “Crawl out” from ventilation and “Get back into last host”(the last one that was possessed by the player) while in werm form
r1.33
* Added part picker to the title screen directly
* [Part 5] Added option during night phase “Masturbate close to someone” that can be used if host has a parasite in vagina or penis. The infestation has a 15% to occur on a randomly picked NPC in room
* [Part 5] While in control of the host, approaching and having sex with another NPC while their resist is 30 or more while there are other NPC’s in the room results in a discovery bad event (+10 to busted meter)
* [Part 5] Added option “Induce masturbation” that can be used while not in control of host. This option advances time, increases host perversion by 5 and if there are other people in the room at the moment of using this option +20 to detection meter from each person. Doing this action when arousal is quite high will increase host’s perversion by 5 more
* [Part 5] Added option “Increase birth rate” that can be used on any time phase excluding night. This option advances time and gives 1 extra werm parasite on night phase
* [Part 5] Added “Pheromone release” option to be also available when in control of the host (inhabiting the neck choker)
* [Part 5] Added the option to safely get out of the current host and possess another host in Sleeping Quarters rooms during the night phase
* [Part 5] Pheromone infected rooms can now infect the characters that visit the room. The probability is based of the % of the room infection
* [Part 5] Removed message when exiting host not on “night” time phase
* [Part 5] Added progress tracker to the “Resistance Reclamation” events descriptor ("#/Total”)
* [Part 5] Added “You released pheromones” to the descriptions of pheromone release mechanic
* [Part 5] Changed room size for pheromone release to work faster. Armory 100 → 45, Laboratory 100 → 30, Brig 100 → 60, Dining 100 → 45, Bathroom 100 → 30, Engineering 100 → 80, Kitchen 100 → 60, Range 100 → 50, Sleeping Quarters 1/2/3 100 → 30, Utility Room 100 → 30.
* [Part 5] Room clearance mech requirements lifted, mech simplified
* [Part 2+] Decreased perversion stat requirement for auto-accept of parasite infestation on ‘During the Night’ events (150 → 100)
* [Part 5] Changed text color of perversion increase(cyan → purple) and resistance decrease(cyan → dark orange) for pheromone release event and % display rounded to 1 decimal
* [Part 5] Added bottom navigation menu(s). Can be accessed when in control of host character
* [Part 5] Added Unique parasites. Other characters can be turned into werms in the engineering room when they are choker and neck werm infested. Unique parasites use unique slots that do not take up space from ordinary infestation slots
* [Part 1+] Space button can now be used to progress through most infestation passages
* [Part 5] Directional keyboard keys can now be used to navigate through the base
* [Part 4] Directional keyboard keys can now be used to cycle through bottom navigation menu and some other passages
* [Part 1+] Space button is now used on “Continue” in self/other body part infestation passages
* [Part 1] Directional keyboard buttons can now be used to use some of the options in passages with multiple click options
* [Part 2] Directional keyboard keys can now be used to cycle through bottom navigation menu. ‘←’ - jump to first page in the menu, ‘→’ - cycle through the passages in the navigation menu; ‘↑’ and ‘↓’ - upstairs/downstairs if there is any.
* [Part 2-5] Space button can now be used to progress through most passages
Artwork changes & additions:
* [Title screen] Added images of picking game part to the title screen
* [Sex acts art] Added male chest base image links to “doggy style” sex act
* [Part 1+] Fixed auto speech bubble portraits to display correctly male/female version of how Chet/Chloe looks.
Bug fixes & corrections:
* [Part 5] Added [?] notification message at the “Laboratory” for the biosuit tech usage about capturing threat
* [Part 1+] Fixed NPC sex act chooser by preference getting off bound with no value (cannot execute macro <<npc_sex_choices>> during NPC sex act bug)
* [Part 5] “+1 phase delay” and the supporting it text of “Reclamation plotline” on during the “Time advances” events now have extra bold text formatting
* [Part 1+] Added measures of removing “undefined” NPCs that can surface on “During the night/day” events
* [Part 5] Corrected NPCs ‘masturbate’ behavior to infect the room with moles of pheromones
* [Part 5] Removed “Actions x/max” description when in parasite form
* [Part 5] Removed “Up/Down” buttons from the elevator passage. Added correct descriptions for each floor.
* [Part 5] Added a limiter to “overall awareness” for the value to stay in 0-100 bounds
* [Part 2+] Fixed situation where on during the day events “check body” & “infested open” events bugged the message display with a “<<day_cycle>>: Cannot read properties of undefined (reading ‘merged’)”
* [Part 2+] Fixed “partnersex” night event not increasing “infected” quest count occurence
