// the find
PanicPetal/ALS-Community
Replicated and optimized community version of Advanced Locomotion System V4 for Unreal Engine 5.4 with additional features & bug fixes
A community-maintained C++ port of the original Blueprint-based Advanced Locomotion System V4, rebuilt as a UE5 plugin with full replication support. It's for game developers who need a production-grade character locomotion foundation and don't want to start from scratch. The maintainer has explicitly flagged it as legacy — new projects should look at Lyra instead.
Full C++ implementation means you can actually read and debug the state machine logic instead of fighting with Blueprint spaghetti. Replication is first-class with bandwidth optimization built in, not bolted on. Mantling and debug visualization are extracted into separate actor components, so you can strip them without touching the core character class. Enhanced Input plugin integration means it won't fight you on UE5's input system.
The maintainer's own README says it's built on 'outdated animation programming techniques of pre-UE5 era' and recommends against using it for new projects — that's a significant yellow flag coming from the person maintaining it. Ragdoll replication is marked experimental, which in practice means don't ship it. Last commit was July 2024 and it's explicitly in maintenance-only mode, so you're inheriting a codebase nobody is actively improving. No console or mobile support, and the disclaimer makes clear that's not changing.