Updated: October 27, 2025
We added the latest UPDATE6 and more codes!
Step into a dark Roblox world where science has gone too far—mutate, infect, and survive against other test subjects thanks to Parasite.exe codes. Every code gives you the boost you need to keep your experiments going and your creations evolving. Ready to see how far you’ll go before the virus takes over?
All Parasite.exe Codes List
Unlock new dummies with Parasite.exe codes and prepare to enhance your experiments. Enter another facility and use Ro-Bio Experiment Codes to unlock more tools for experimentation and mutate Robloxians.
Active Codes
Parasite.exe Codes
| BOSS | Free rewards (New) | |
| FREEMEGA | Mega Dummy (New) | |
| UPDATE6 | Exploding Dummy (New) | |
| FOLLOWMATTTHEDEV | Clone Dummy (New) |
Expired Codes
- There are no expired codes.
Related: Roblox Lab Breakout Codes
How to Redeem Codes in Parasite.exe
Before you start experimenting, you should read our guide on how to use Parasite.exe codes:
- Run Parasite.exe in Roblox.
- Click on the Codes button on the left.
- Type a code into the
- text box.
- Press the Redeem button to claim freebies.
How to Get More Codes
You can explore the Parasite.exe Discord, YouTube channel (@mattthedevroblox), and X (@parasite_error), and look for the new codes yourself. However, finding the codes on the official social media platforms can be time-consuming. Luckily, you can rely on this article and come back to get more freebies hassle-free.
Parasite.exe FAQ
Each button results in a different change within a parasite. Here is a list to showcase what each experiment does:
Radioactive - Changes the parasite's material to Neon (increases bugs rate).
Freeze - Changes the color to light blue and freezes the parasite (stops growth).
Shock - Sets CanInfect to True.
Confuse - Agitates the parasite (increases aggression).
Soak - Changes the parasite's growth speed.
Ignite - Lowers growth speed and causes aggression.
Heal - Lowers growth speed and causes aggression.
Grow, lazer, and twist - Has no effects.
Vaporize - Turns infect to true.
Acid Burn - Sets CanInfect to True.
Each experiment can result in a new mutation. So far, these are all of the mutations we've discovered: CoreRipples, Bubbles, Vein, Corrosion, Spikes, Outline, Drips, and LightFlies.
Parasite.exe is a Roblox title where you get to experiment on parasites. Spawn parasites and test their resilience, watching them grow and mutate into creatures of hostility or peace. Be careful when you inject your specimen because they can escape the chamber and attack everyone in the facility. Thankfully, you’re armed with a gun.
Browse the Roblox Game Codes page and make sure you look into the Roblox Promo Codes post as well for more freebies.
Ana Mitic, a seasoned code writer for GAMURS, blends her deep-rooted passion for gaming with her professional expertise. With a decade of gaming experience, she specializes in immersive titles like Baldur’s Gate 3 and The Witcher 3. Her fondness for horror games highlights her diverse gaming tastes. Beyond gaming, her life is enriched by her four cats and a fluffy dog, adding a personal touch to her tech-savvy persona.
