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.

Metadata

Game information

Creator type

User

Verified

No

Genre (L1)

Survival

Genre (L2)

Access

Free

Avatar type

MorphToR6

Created

Feb 8, 2022, 9:52 PM

Last updated

Aug 25, 2026, 9:25 AM