mass-entity

AI bridge for Unreal Engine 5. Control the editor from Claude Code, Cursor, Windsurf, and any MCP client. Community edition of CodeFizz Editor Agent, which has 1,500+ commands across 44 groups on UE 5.6, 5.7 and 5.8.

DLL Mass Units - open-source Unreal Engine 5 Mass Entity crowds: movement, behavior LOD, engagement, scalable rendering, optional GAS. Apache-2.0, by Digi Logic Labs.

Project Mobius is an Unreal Engine 5.5 application for loading pedestrian trajectory datasets, replaying them in 3D, and analyzing crowd movement with heatmaps, flow counters, and in-engine charts. Windows is the primary target; macOS support is partial.

Rebuilding a 10,000-unit Unreal Engine 5 horde with Mass Entity: from 440 ms to 7.8 ms per frame. Each optimization (ISM+VAT, actor hydration, Animation Budget Allocator, Simulation LOD, ISKM) is added one at a time and measured in a Test package.

LCM 3D Navigation AI (LCM Nav3D): next-generation volumetric 3D navigation and infinite pathfinding for AI in Unreal Engine 5.2-5.8 - flying, swimming and free-floating agents, Mass crowds. The free demo levels for the Fab plugin.