Drop-in deterministic turn-based and ATB battle engine for RPGs. Party combat, skills, status effects, enemy AI, save and resume, plus a balance simulator. Pure C#, no SDKs, full source.Drop-in turn-based and ATB battle engine for RPGs. Pure C#, deterministic, no SDKs.What it does- Classic turn order or active-time battle (ATB), switchable per encounter- Party versus enemy groups with speed-based scheduling- Skills with MP cost, single, all, ally and self targeting, plus healing- Status effects: poison, regen, attack and defense up or down, stun, haste, slow- Editable damage formula with a per-skill element multiplier- Built-in enemy AI: focus fire, heal hurt allies, pick the best affordable skill- Save and resume a battle mid-fight, fully reproducible from a seedWhat's included- Drop-in uGUI battle HUD: command menu, HP and MP bars, turn order- Self-playing IMGUI demo and a one-component sample scene- Battle Balance Simulator that runs the real engine AI vs AI and grades win rate, length and broken or unused skills- Setup window, config validator, full C# source and in-package docsRequirements- Unity 2021.3 or newer. No third-party packages. TextMeshPro not required.Support- info@favengames.com- Documentation is included in the package (README + Documentation).Authored in Unity 2022.3 LTS and works from 2021.3 up to Unity 6. Built-in render pipeline, compatible with URP and HDRP since it is UI and logic only with no shaders. The engine is render-agnostic and 2D/UI oriented. No SDKs are bundled and it compiles clean. Full C# source is included across five assemblies (Runtime, UI, Editor, Demo, DemoEditor) so the demo and editor tools stay isolated from your build. Deterministic xorshift RNG makes every battle reproducible from a seed. Documentation is in the package files.No generative AI art, audio, or 3D models are included in this package. All marketing images are rendered programmatically with Python (Pillow), not an AI image generator. The store description is written in plain language and reviewed by the developer.


