Parasite.exe is a Roblox lab experience where codes grant free dummies and occasional bonuses to speed up experiments.

Updated: October 25, 2025

New codes: BOSS

  • BOSS — 2 Free Spins NEW
  • FREEMEGA — Spawns a Free Mega Dummy
  • UPDATE6 — Spawns a Free Exploding Dummy
  • FOLLOWMATTTHEDEV — Spawns a Free Clone Dummy

How to redeem codes

Step 1: Launch Parasite.exe on Roblox.

Step 2: Click the Codes button on the left side of the screen to open the redemption window.

Step 3: Type or paste a working code into the “Type your code here” field.

Step 4: Press the Redeem button to claim your reward.

Step 5: If a fresh code doesn’t register, rejoin to a new server and try again.

Expired codes

    Why codes might not work

    • The code has expired.
    • Typos or extra spaces — codes are case-sensitive.
    • The code was already redeemed on your account.
    • The server/client isn’t updated — leave and rejoin, then retry.

    Where to find more codes

    New codes are shared on official channels: join the Parasite.exe Discord, follow the game on X (Twitter), subscribe on YouTube, and join The Lab’s Experiment Roblox group. Bookmark this page — we update code lists weekly.

    Codes are free, time-limited, and case-sensitive. Redeem them exactly as shown and avoid third‑party “code generators” or requests for your account details.