Engine-side combat primitives: HealthPool, PursuePool, DamageSystem, PursueSystem, AttackSystem. Knight at world origin, 3 enemies spawned at the edges that pursue + deal contact damage when in range. Click on or near an enemy to deal 25 damage to the nearest within range. Dead enemies are cleaned up by DamageSystem (entity destroyed, components detached). When all 3 enemies die, the wave respawns. Real Survivor will replace the simple AI with mob-specific behaviour, swap the click-attack for a per-skill router, and stack on top via the Director event stream. Director demo | gallery