Parasite Testing codes

Updated: July 1, 2025

We checked for new codes!

All hell has broken loose—the research area is full of infected creatures, and all you can do is grab a gun and destroy them all. However, if they get you, you’ll be assimilated and fight the humans. Get all the resources you need to win by using Parasite Testing codes.

The codes will give you Credits and Levels—both essential for becoming tough enough and arming yourself to the teeth against the terrifying enemy. If you want to jump into another gripping Roblox experience, we’ve got a list of Zombie Defense codes just waiting for you to redeem them!

All Parasite Testing codes list

Parasite Testing codes (Active)

• ACOLYTE—Redeem for 75 Credits (New)
• 2KSERVER—Redeem for 5 Credits (New)
• PUPPETEER—Redeem for 5 Credits and 5 Levels (New)
• 1MVISITS—Redeem for 75 Credits and 25 Levels (New)

Parasite Testing codes (Expired)

• There are no expired Parasite Testing codes at the moment.

Related: Roblox Rivals codes

How to redeem codes in Parasite Testing

Here’s all that you need to do to redeem your Parasite Testing codes:

1. Launch Parasite Testing in Roblox.
2. Locate the Redeem Codes laptop in the Spawn area.
3. Press E on your keyboard to interact.
4. Use the Enter a Code field to input a code.
5. Press Submit to collect your freebies.

How to find more Parasite Testing codes

For more Parasite Testing codes, you can check out the official Parasite Testing Discord server and the Parasite Testing Roblox group. However, you can also opt for the much quicker route—bookmark this page and come back often, as our article will always include the latest code drops on a curated list.

Why are my Parasite Testing codes not working?

The most probable reason why your Parasite Testing codes aren’t giving you any free goodies is a typing error. To avoid this, use the copy/paste method and rely on our list of codes. If you keep getting the message that a particular code is invalid, inform us, and we’ll move it to where it needs to be.

What is Parasite Testing?

Parasite Testing is a frantic Roblox shooting experience in which your task is to stop the terrifying infection that turns people into monsters from spreading. However, if you get infected, you’ll become a part of the Infected Team that is hell-bent on overcoming all the humans. Level up and get the best guns to fight the infection and destroy it at its core.

If you’re on the hunt for codes to redeem in other Roblox games, visit our vast Roblox Codes section and grab all the free stuff while you still can