A subsystem that manages the deployment state of the players. It is responsible for creating and destroying the level, saving the game after extraction, and general clean up between raids.

A data-oriented, server authoritative projectile system that allows for thousands of simulated projectiles at once.

All AI within the game are driven by state trees that utilize custom evaluators and tasks written in C++.

A complex grid inventory system similar to that of Diablo, Escape From Tarkov, and System Shock 2. Server-authoritative with client-side rollback. Utilizes a flat array per inventory that is wrapped within a FFastArraySerializer.

A hierarchical socket-based weapon modification framework. Supports runtime swap of optics, muzzle devices, handguards, and internal bolt components. Modifiers dynamically recalculate ergonomics, recoil curves, and muzzle velocity on the fly.

A detailed limb-based health system that divides character health into limbs that are defined by the physics asset of the skeletal mesh that the character uses. Supports limb modifiers such as bleeds, bruises, broken bones, etc. Uses gameplay effects to apply the modifier.

A robust loot generation system complete with custom Slate UI in the editor to make creating pools and tables easier. Developers can simulate tables, view drop percentages, and apply tables modularly to containers in the game.

A custom audio system that utilizes "Environment Volumes" and "Portals" to connect interior levels. This allows for spatially accurate sounds to be routed through the system and played for the player.

A system that procedurally generates the world around actors which have an invoker component. The system is data-driven, and allows for custom biomes to be defined within a collection of data assets.

Utilizes a custom volume-based system that enables objects to posses properties such as radiation or heat that propogate through the environment.

A custom system that allows AI that are far away from the player to still simulate realistically with reduced tickrates, disabled features, etc.