Gaming Roblox Codes

Parasite Testing Codes (March 2026) — Latest Working Rewards

Redeem these codes for free credits, levels, and dummy spawns, and check back often for the latest working list.

Redeem these codes for free credits, levels, and dummy spawns, and check back often for the latest working list.

by Shivam MalaniShivam Malani

Image source: Roblox

Parasite Testing is a survival shooter experience on Roblox where players must fend off hordes of mutating infected creatures. Staying alive requires constant upgrades to your armory and careful coordination to avoid being assimilated into the infected team. Redeeming codes provides a quick infusion of credits, level boosts, and exclusive dummy spawns to help you secure better weapons and test new defenses early on.

All working Parasite Testing codes

Claim these active codes for immediate in-game boosts. Some codes grant direct currency and levels, while others spawn specific testing dummies inside the laboratory.

  • BOSS — 2 Spins
  • FOLLOWMATTTHEDEV — Free Clone Dummy
  • FREEMEGA — Free Mega Dummy
  • MAPREVAMP — 100 Credits and 15 Levels
  • PUPPETEER — 50 Credits and 10 Levels
  • RESEARCH — 80 Credits and 10 Levels
  • RESTRICTED — 80 Credits and 10 Levels
  • UPDATE6 — Free Exploding Dummy

Expired codes

The following codes have expired and no longer grant rewards.

  • 1KSERVER
  • 1MVISITS
  • 2KSERVER
  • ACOLYTE

How to redeem codes in Parasite Testing

You can claim your rewards shortly after loading into the main laboratory hub.

Launch the game and wait for your character to spawn into the starting room.
Walk over to the Redeem Codes laptop located in the spawn area and interact with it to open the text box.
Type or paste an active code exactly as it appears above into the field.
Press the green Submit button to instantly apply the rewards to your account.
Close the redemption window and interact with the laptop again if you wish to enter another code, as entering multiple codes back-to-back without closing the menu may prevent subsequent inputs from registering.

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