Updated: June 16, 2025
PUPPETEER, 1MVISITS — We tested and added new codes for Credits and Levels! Both work.
You should better get some Roblox Parasite Testing codes ready because this game is far from a chill day at the lab. The only science you're going to do here is the physics of firearms and delivering maximum destructive energy, which won't help much once you run out of bullets.
Parasite Testing codes offer free Credits and Levels, which are a great way to help you survive this extremely frenetic experience. You'll need to be level 250 to unlock the Armory and access the best weapons, so these codes can help you skip a lot of the initial, slow-burn grind. Once you defeat all the infected carriers, you can do it one more time with the help of Infection Gunfight Codes.
All Roblox Parasite Testing Codes List
Working Roblox Parasite Testing Codes
- PUPPETEER—Redeem for 5 Credits and 5 Levels (New)
- 1MVISITS—Redeem for 75 Credits and 25 Levels (New)
Expired Roblox Parasite Testing Codes
- There are currently no expired Parasite Testing codes.
Related: Rivals Codes
How to Redeem Codes in Roblox Parasite Testing
If you're not sure where to redeem Parasite Testing codes, follow the instructions below:
- Launch Parasite Testing on Roblox.
- Approach the laptop on the bunk bed next to your spawn point.
- Hold E on your keyboard.
- Paste a code into the Enter a code text box.
- Click Submit to claim the rewards.
How to Get More Roblox Parasite Testing Codes
New Roblox Parasite Testing codes will be announced on the official social media channels with each upcoming update and milestone. You can join the Parasite Testing Discord and the Roblox group if you want to track them yourself. Alternatively, you can also bookmark this list instead and let us bring all the rewards straight to you. That way, all you need to do is revisit this page occasionally.
Why Are My Roblox Parasite Testing Codes Not Working?
If you're unable to redeem a Roblox Parasite Testing code, the first step you should take is to double-check your spelling. These codes will fail to work in the event of a typo, including incorrect capitalization. If this step doesn't help, the reward is likely no longer available. Drop the problematic code in the comments so we can test it and move it if the developer disabled it.
What Is Roblox Parasite Testing?
Parasite Testing is a Roblox PvP experience where humans and monsters wage war through the halls of the chaotic lab. Be careful not to get killed or infected, and lead your team toward victory. You'll need to manage your resources and use the surroundings to your advantage to prevail. Level up and earn Credits to unlock more bullets and better weapons in the Armory.
Roblox Parasite Testing FAQ
You can either bookmark this list and revisit it occasionally or join the official social media platforms, such as the Parasite Testing Discord and the Roblox group.
You can redeem them by using the laptop located in the cell where you spawned in. It's on a bunk bed on the right to the exit. Once you find it, press and hold the E key on your keyboard to open the code window.
No, the game doesn't have an official Trello at the moment. We'll be happy to let you know if the situation changes in the future!
If you're interested in more free rewards for your other favorite Roblox titles, check out our Roblox Game Codes post and our Roblox Promo Codes page.
Maja Kovačević is a Codes Team Writer who enjoys the challenge of a hunt for the latest Roblox codes. She fell in love with gaming at the tail end of the nineties after a journey through the original Prince of Persia and has kept that passion ever since. When not busy with experimental arts and crafts, you can often find her pursuing new intriguing indie games or indulging her love for sports by playing a round of FIFA.