by Archeximus
Anomalous Activities: Sierra Protocol Codes
Working Anomalous Activities: Sierra Protocol Codes
Last updated August 22, 2026
No working codes right now
We're tracking Anomalous Activities: Sierra Protocol and will list codes here the moment the developers release them. If you spot one first, send it our way below.
How to redeem codes in Anomalous Activities: Sierra Protocol
- Launch Anomalous Activities: Sierra Protocol on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About Anomalous Activities: Sierra Protocol
MERCs are called upon to investigate Anomalous Fields, stabilise the area and neutralise the Subject, a nearly invisible threat with a multitude of powers and the ability to transform into terrifying creatures. Anomalous Activities is a 1v12 Asymmetrical shooter with horror elements, a focus on satisfying gunplay, teamwork, impactful gameplay and a skill ceiling. Shared controls are listed in the lobby, the rest is common sense. Type "gamemode/classic" to enable True Classic gamemode in VIP servers if you are the owner. True Classic is a gamemode designed to emulate the original Hidden: Source as faithfully as possible. Progression is not saved if True Classic mode is enabled. "setclass/support" and "setclass/assault" to change classes in True Classic gamemode. Votekick can be performed by typing votekick/[USERNAME] in the chat. You do not need to write the full username. Thumbnails contributed by 31Boy13 and darknessglows3.