diff --git a/src/update.ts b/src/update.ts
index 2b975ac..e350430 100644
--- a/src/update.ts
+++ b/src/update.ts
@@ -1,6 +1,6 @@
 import { produce } from 'immer';
 
-import { getBuilding, getProduction, getStorage, getUnitSource } from './utils';
+import { getBuilding, getProduction, getStorage, getUnitSource, shuffle } from './utils';
 import village, { type VillageState } from "./village";
 import type { ProductionType } from './types';
 
@@ -43,6 +43,14 @@ export default function update(timestamp: number) {
                 V.resources[resource] += outputPerMilisecond * delta;
             });
 
+            // Kill units if food is negative.
+            if (V.resources.food < 0) {
+                // Choose a unit type at random.
+                const type = shuffle(Object.keys(V.units).filter(t => V.units[t] > 0))[0];
+                // Kill one unit of that type.
+                V.units[type]--;
+            }
+
             // Make sure resources do not overflow.
             Object.keys(productionPerMinute).forEach((key) => {
                 const resource = key as keyof ProductionType;
diff --git a/src/village.ts b/src/village.ts
index d0a1fab..da9bc8b 100644
--- a/src/village.ts
+++ b/src/village.ts
@@ -111,7 +111,7 @@ function getInitialState() {
             }
             const newBuilding = createBuilding(type);
             newBuilding.tile = new Hex(x, y);
-            newBuilding.level = 10; // DEBUG
+            newBuilding.level = newBuilding.type === 'field' ? 1 : 10;
             state.outsideTiles[y][x] = newBuilding.id;
             state.buildings.push(newBuilding);
         });