https://github.com/xpturn/klotho

Deterministic Unity & Godot framework for rollback, lockstep & server-authoritative multiplayer. Engine-agnostic pure C# core, FP64 fixed-point math, ECS, physics, navigation, and replays — frame-perfect, cross-platform reproducible.

client-side-prediction deterministic ecs fixed-point frame-sync godot-engine lockstep multiplayer networking replay rollback server-authoritative simulation unity-package unity3d-plugin upm

Last synced: 08 Jun 2026