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Best Parasite Games

250+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated August 2026

Looking for free parasite games? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Parasite Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CarrionCarrionFree4.4★ (1.8K)NoYesAug 2026
2Infection Bio WarInfection Bio WarFree4.6★ (20K)NoYesAug 2026
3Patient Zero: Virus gamePatient Zero: Virus gameFree4.6★ (4.4K)YesYesAug 2026
4Idle Maggots - Simulator GameIdle Maggots - Simulator GameFree4.7★ (6.2K)YesYesAug 2026
5Mimicry: Online Horror ActionMimicry: Online Horror ActionFree4.5★ (6.4K)YesYesAug 2026
6Tasty Planet ForeverTasty Planet ForeverFree4.4★ (1.2K)YesYesAug 2026
7Death Worm™Death Worm™Free4.7★ (57K)YesYesAug 2026
8Tentacle Wars ™Tentacle Wars ™Free4.4★ (7.1K)NoYesAug 2026

Top Picks for Parasite Games

Carrion#1

Carrion by Devolver

HUNT. CONSUME. GROW. EVOLVE.
Editor's Choice
🎮 Games
4.4😊(1.8K ratings)
FreeIn-App Purchases
Carrion screenshot 1
Carrion screenshot 2
Carrion screenshot 3
Carrion screenshot 4
Carrion screenshot 5
Carrion screenshot 6

Experience a unique reverse horror game where you play as a monstrous creature. Hunt down your captors, consume them to grow stronger, and evolve devastating new abilities to escape your prison. The full game and DLC are unlocked with a single in-app purchase.

What We Love

  • 🚀 Smooth gameplay
  • 👍 Unique reverse horror concept
  • 🎨 Impressive pixel art graphics
  • 🎮 Satisfying monster mechanics

Room to Improve

  • 🐛 Frequent crashes and freezes
  • 🧭 Lack of map or navigation guidance
  • 💰 Paid full version after demo
Infection Bio War#2

Infection Bio War by Wildlife Studios

Spread the Plague!
Strong Contender
🎮 Games
4.6😊(20K ratings)
FreeIn-App Purchases
Infection Bio War screenshot 1
Infection Bio War screenshot 2
Infection Bio War screenshot 3
Infection Bio War screenshot 4
Infection Bio War screenshot 5

A strategy game where you infect the global population with a custom disease. Evolve your pathogen with various transmission methods, symptoms, and resistances to achieve world domination.

What We Love

  • 👍 Decent for a free app
  • 👍 Fun and addictive
  • 👍 Pretty great with a winning strategy
  • 👍 Great game, one small issue

Room to Improve

  • 🐛 Certain African countries won't grow
  • 🐛 Worm gamemode has a bug
  • 🐛 Scrolling issues
Patient Zero: Virus game#3

Patient Zero: Virus game by Brightika, Inc.

Apocalypse simulator
Worth Considering
🎮 Games
4.6😞(4.4K ratings)
FreeAdsIn-App Purchases
Patient Zero: Virus game screenshot 1
Patient Zero: Virus game screenshot 2
Patient Zero: Virus game screenshot 3
Patient Zero: Virus game screenshot 4
Patient Zero: Virus game screenshot 5
Patient Zero: Virus game screenshot 6

Simulate the creation and spread of a deadly plague in this realistic apocalypse simulator. Adapt your pathogen against global efforts to stop it and decide the fate of humanity. It's a strategic test of biology and survival.

What We Love

  • 👍 Great gameplay
  • 🚀 Smooth graphics

Room to Improve

  • 💸 Too many ads
  • 🔍 Lack of content

More Parasite Games apps to explore

4
Idle Maggots - Simulator Game
Idle Maggots - Simulator Game
Idle Maggots - Simulator Game
by TapNation
Free

Simulate the growth and consumption of maggots on various carcasses. Produce maggots and watch them eat, leaving behind only the bones. A unique simulation experience focused on decomposition.

Produce maggotsConsume carcassesSimulate decomposition
🎮 Games
(6.2K)
free with in-app purchases
5
Mimicry: Online Horror Action
Mimicry: Online Horror Action
Mimicry: Online Horror Action
Scary hide and seek simulator
Free

Play as a monster or survivor in this online multiplayer horror game. Deceive your friends as an alien creature that can transform into any player, or work together to escape before the monster eliminates everyone. Features include voice chat, unique monsters, and character customization.

Multiplayer survival actionShapeshifting monsterVoice chat communication
🎮 Games
(6.4K)
free with in-app purchases
6
Tasty Planet Forever
Tasty Planet Forever
Tasty Planet Forever
Bigger. Better. Tastier.
Free

Control a hungry creature that grows by consuming everything in its path, from small objects to entire cities and planets. Explore diverse worlds and unlock new characters for an even bigger challenge. Enjoy cooperative gameplay on iPad.

Grow by eating everythingExplore multiple worldsUnlock new characters
🎮 Games
(1.2K)
free with in-app purchases
7
Death Worm™
Death Worm™
Death Worm™
Alien Monster Simulator
Free

Control a massive underground monster to devour everything in its path. Explore diverse environments, battle over 40 enemy types, and destroy vehicles and aircraft. Enjoy multiple game modes and evolving worm visuals for endless destructive fun.

Underground monster control4 feeding locations60 campaign levels
🎮 Games
(57K)
free with in-app purchases
8
Tentacle Wars ™
Tentacle Wars ™
Tentacle Wars ™
by FDG Entertainment GmbH & Co.KG
Free

Engage in a microscopic strategy game within an alien organism. Control antibody cells to capture enemy cells by drawing DNA tentacles, managing energy, and defending against an intelligent opponent. Features a campaign mode and online multiplayer battles.

Microscopic battlefield gameplaySingle-player campaign with 80 missionsDraw DNA tentacles to capture cells
🎮 Games
(7.1K)
free with in-app purchases
9
Parasite Days
Parasite Days
Parasite Days
A Parasite-Purging Adventure
Free

Awaken with a strange creature on your arm in this unique adventure game. Decide whether to fight the parasite or succumb to its draining effects. Manage your health, discover food combos, and make choices that lead to multiple endings.

Parasite-purging adventureHealth managementFood combo discovery
🎮 Games
(218)
free with in-app purchases
10
Cell Conquest
Cell Conquest
Cell Conquest
Defend the Host
Free
🎮 Games
(0)
11
Worm Control
Worm Control
Worm Control
Fight Against The Snake!
Free

Engage in intense battles against invading worms. Upgrade your arsenal and strategically defend your base to survive the onslaught. Experience fast-paced action and test your defensive capabilities.

Weaponry upgradesBase defenseWorm combat
🎮 Games
(1)
ad-supported
12
Let's Play a Game
Let's Play a Game
Let's Play a Game
Do you have nerves of steel?
Free

Embark on a chilling horror thriller adventure to uncover the truth behind a series of abductions. This game tests your courage and keeps you on the edge of your seat with its suspenseful narrative.

Horror thriller gameplaySuspenseful narrativeUncover sinister truths
🎮 Games
(3K)
free with in-app purchases
13
Mosquito Attacks Simulator
Mosquito Attacks Simulator
Mosquito Attacks Simulator
A mosquito in the room
Free

Control a mosquito in a 3D casual game to attack a family. Avoid being shot while you unleash your inner insect. A fun and simple way to de-stress.

3D casual gameplayControl a mosquitoAttack a family
🎮 Games
(1K)
ad-supported
14
Idle Stories
Idle Stories
Idle Stories
Text Adventure Gamebooks
Free
🎮 Games
(0)
15
Parasite Boom: Cell Blast
Parasite Boom: Cell Blast
Parasite Boom: Cell Blast
Possess, Drain, Blast
Free
🎮 Games
(0)
16
The Amazing Saniboy
The Amazing Saniboy
The Amazing Saniboy
by READYTO IT
Free
🎮 Games
(0)
17
Scary Games 3d Horror Survival
Scary Games 3d Horror Survival
Scary Games 3d Horror Survival
Scary Games Creepy Horror Game
Free

Engage in a terrifying survival escape mission against creepy characters in haunted environments. Navigate dark forests and haunted houses, solve mysteries, and evade monsters to stay alive. This offline horror game offers multiple modes and challenges to test your courage.

3D horror survival escape missionsOffline gameplayMultiple creepy characters (granny, clown, nun)
🎮 Games
(1)
ad-supported
18
Stranger Games: Quiz & Trivia
Stranger Games: Quiz & Trivia
Stranger Games: Quiz & Trivia
Trivia, Character Test & Games
Free

Embark on a narrative-driven 8-bit adventure inspired by 80s sci-fi and horror. Investigate a small town's mysteries by switching between characters with unique abilities and exploring a parallel dimension. Your choices will shape the unfolding story.

Retro 8-bit aestheticSupernatural investigation gameplaySwitchable character abilities
🎮 Games
(0)
free
19
Inflammania 2
Inflammania 2
Inflammania 2
Fight for Cure
Free
🎮 Games
(0)
20
Worm.io - Snake & Worm IO Game
Worm.io - Snake & Worm IO Game
Worm.io - Snake & Worm IO Game
Fun Online Multiplayer Battles
Free

Engage in thrilling arcade battles where you grow by consuming dots and agar. Outmaneuver opponents, avoid collisions, and strategically use power-ups to become the largest worm in the arena. Play offline or online for endless fun.

Eat dots and agar to growAvoid head collisionsMake enemies crash into you
🎮 Games
(21K)
free with in-app purchases

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FAQ about Parasite Games

What are the best parasite games for iPhone?
Carrion tops our parasite games ranking as of August 2026, with a 4.4-star average from 1.8K App Store ratings, and it's free to download.
Yes — 20 of the top parasite games we rank are free to download, including Carrion and Infection Bio War.
Carrion has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ parasite games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Carrion is a reverse horror game. Instead of playing as a human trying to survive a monster, you play as the monster itself. You are an amorphous creature of unknown origin trying to escape your prison.
You can try Carrion for free with no ads. To unlock the full game and its DLC, there is a single in-app purchase required. No virtual currency or additional purchases are needed beyond this.