# dominium-core > Data + 6 atomic actions + JSON Concepts for [dominium](../README.md). No graphics. `Grid` with 5 layers (`materia`, `psique`, `poder`, `oro`, `degradacion`) in `Vec` indexed `y * width + x`. `Agent` with vector state + decision. Six atomic actions: `Mover`, `Tomar`, `Soltar`, `Transmitir`, `Atacar`, `Descansar`. `Concepto` loads field emitters via JSON (`id+pos+radio+mods+hack`). ## API ```rust use dominium_core::{World, Concept}; let mut w = World::new(256, 256, seed); w.cargar_conceptos(&conceptos_json)?; ``` ## Deps - `serde`, `libm` - Zero graphics deps (inviolable rule)