diff --git a/guide/age-of-dwarves/src/vite-plugins/simCachePlugin.ts b/guide/age-of-dwarves/src/vite-plugins/simCachePlugin.ts
index 426e0e52..0e0d690b 100644
--- a/guide/age-of-dwarves/src/vite-plugins/simCachePlugin.ts
+++ b/guide/age-of-dwarves/src/vite-plugins/simCachePlugin.ts
@@ -15,7 +15,7 @@ export function simCachePlugin(): Plugin {
   const cache = new Map<string, { stats: unknown[]; events: unknown[][] }>()
   let engineModule: typeof import('@magic-civ/engine-ts') | null = null
   let terrainData: Record<string, unknown> | null = null
-  let climateParams: Record<string, number> | null = null
+  let climateParams: Record<string, unknown> | null = null
 
   function loadGameData(root: string): void {
     const dataDir = path.resolve(root, '../../games/age-of-dwarves/data')
@@ -32,13 +32,9 @@ export function simCachePlugin(): Plugin {
       }
     }
 
-    // Load climate params (extract only numeric values) — from world definition
-    const paramsPath = path.resolve(root, '../../engine/src/worlds/earth/climate_params.json')
-    const rawParams = JSON.parse(fs.readFileSync(paramsPath, 'utf8')) as Record<string, unknown>
-    climateParams = {}
-    for (const [k, v] of Object.entries(rawParams)) {
-      if (typeof v === 'number') climateParams[k] = v
-    }
+    // Load climate params from world definition
+    const paramsPath = path.resolve(root, '../../resources/worlds/earth/climate_params.json')
+    climateParams = JSON.parse(fs.readFileSync(paramsPath, 'utf8')) as Record<string, unknown>
   }
 
   return {