diff --git a/lib/db/seed.ts b/lib/db/seed.ts
index d64ac3d..e9cfbc3 100644
--- a/lib/db/seed.ts
+++ b/lib/db/seed.ts
@@ -1,7 +1,10 @@
 import "dotenv/config"
 import { drizzle } from "drizzle-orm/node-postgres"
 import { Pool } from "pg"
+import { eq } from "drizzle-orm"
 import { hardware } from "./schema/hardware"
+import { settingCategories } from "./schema/settingCategories"
+import { settingDefinitions } from "./schema/settingDefinitions"
 
 const pool = new Pool({
   connectionString: process.env.DATABASE_URL,
@@ -10,6 +13,7 @@ const pool = new Pool({
 const db = drizzle(pool)
 
 async function seed() {
+  // ── Hardware ──────────────────────────────────────────────────────
   console.log("Seeding hardware table...")
 
   const devices = [
@@ -17,16 +21,19 @@ async function seed() {
       slug: "steamdeck-oled",
       name: "Steam Deck OLED",
       deviceType: "handled" as const,
+      sortOrder: 0,
     },
     {
       slug: "steamdeck-lcd",
       name: "Steam Deck LCD",
       deviceType: "handled" as const,
+      sortOrder: 1,
     },
     {
       slug: "steam-machine",
       name: "Steam Machine",
       deviceType: "console" as const,
+      sortOrder: 2,
     },
   ]
 
@@ -38,6 +45,213 @@ async function seed() {
   }
 
   console.log(`Seeded ${devices.length} hardware devices.`)
+
+  // ── Setting Categories ────────────────────────────────────────────
+  console.log("Seeding setting categories...")
+
+  const categories = [
+    { name: "Graphics", slug: "graphics", sortOrder: 0 },
+    { name: "Display", slug: "display", sortOrder: 1 },
+    { name: "Audio", slug: "audio", sortOrder: 2 },
+    { name: "Controls", slug: "controls", sortOrder: 3 },
+    { name: "Gameplay", slug: "gameplay", sortOrder: 4 },
+  ]
+
+  const insertedCategories: Record<string, string> = {} // slug → id
+
+  for (const cat of categories) {
+    const [inserted] = await db
+      .insert(settingCategories)
+      .values(cat)
+      .onConflictDoNothing({ target: settingCategories.slug })
+      .returning()
+
+    if (inserted) {
+      insertedCategories[cat.slug] = inserted.id
+    } else {
+      // Fetch existing
+      const existing = await db
+        .select()
+        .from(settingCategories)
+        .where(eq(settingCategories.slug, cat.slug))
+        .limit(1)
+      if (existing[0]) {
+        insertedCategories[cat.slug] = existing[0].id
+      }
+    }
+  }
+
+  console.log(`Seeded ${categories.length} setting categories.`)
+
+  // ── Setting Definitions ──────────────────────────────────────────
+  console.log("Seeding setting definitions...")
+
+  const definitions = [
+    // Graphics
+    {
+      categorySlug: "graphics",
+      name: "Resolution",
+      slug: "resolution",
+      inputType: "select" as const,
+      options: ["720p", "800p", "1080p", "1200p", "1440p", "4K"],
+      impactLevel: "major" as const,
+      sortOrder: 0,
+    },
+    {
+      categorySlug: "graphics",
+      name: "Texture Quality",
+      slug: "texture-quality",
+      inputType: "select" as const,
+      options: ["Low", "Medium", "High", "Ultra"],
+      impactLevel: "major" as const,
+      sortOrder: 1,
+    },
+    {
+      categorySlug: "graphics",
+      name: "Shadow Quality",
+      slug: "shadow-quality",
+      inputType: "select" as const,
+      options: ["Off", "Low", "Medium", "High", "Ultra"],
+      impactLevel: "major" as const,
+      sortOrder: 2,
+    },
+    {
+      categorySlug: "graphics",
+      name: "Anti-Aliasing",
+      slug: "anti-aliasing",
+      inputType: "select" as const,
+      options: ["Off", "FXAA", "TAA", "MSAA 2x", "MSAA 4x"],
+      impactLevel: "moderate" as const,
+      sortOrder: 3,
+    },
+    {
+      categorySlug: "graphics",
+      name: "Volumetric Fog",
+      slug: "volumetric-fog",
+      inputType: "toggle" as const,
+      options: null,
+      impactLevel: "moderate" as const,
+      sortOrder: 4,
+    },
+    {
+      categorySlug: "graphics",
+      name: "Motion Blur",
+      slug: "motion-blur",
+      inputType: "toggle" as const,
+      options: null,
+      impactLevel: "minor" as const,
+      sortOrder: 5,
+    },
+    // Display
+    {
+      categorySlug: "display",
+      name: "Refresh Rate",
+      slug: "refresh-rate",
+      inputType: "select" as const,
+      options: ["30Hz", "40Hz", "60Hz", "90Hz", "120Hz"],
+      impactLevel: "moderate" as const,
+      sortOrder: 0,
+    },
+    {
+      categorySlug: "display",
+      name: "V-Sync",
+      slug: "v-sync",
+      inputType: "toggle" as const,
+      options: null,
+      impactLevel: "moderate" as const,
+      sortOrder: 1,
+    },
+    {
+      categorySlug: "display",
+      name: "Frame Rate Limit",
+      slug: "frame-rate-limit",
+      inputType: "range" as const,
+      options: { min: 15, max: 120, step: 5 },
+      impactLevel: "minor" as const,
+      sortOrder: 2,
+    },
+    // Audio
+    {
+      categorySlug: "audio",
+      name: "Master Volume",
+      slug: "master-volume",
+      inputType: "range" as const,
+      options: { min: 0, max: 100, step: 5 },
+      impactLevel: "minor" as const,
+      sortOrder: 0,
+    },
+    {
+      categorySlug: "audio",
+      name: "SFX Volume",
+      slug: "sfx-volume",
+      inputType: "range" as const,
+      options: { min: 0, max: 100, step: 5 },
+      impactLevel: "minor" as const,
+      sortOrder: 1,
+    },
+    {
+      categorySlug: "audio",
+      name: "Music Volume",
+      slug: "music-volume",
+      inputType: "range" as const,
+      options: { min: 0, max: 100, step: 5 },
+      impactLevel: "minor" as const,
+      sortOrder: 2,
+    },
+    // Controls
+    {
+      categorySlug: "controls",
+      name: "Controller Vibration",
+      slug: "controller-vibration",
+      inputType: "toggle" as const,
+      options: null,
+      impactLevel: "minor" as const,
+      sortOrder: 0,
+    },
+    {
+      categorySlug: "controls",
+      name: "Aim Sensitivity",
+      slug: "aim-sensitivity",
+      inputType: "range" as const,
+      options: { min: 1, max: 10, step: 1 },
+      impactLevel: "minor" as const,
+      sortOrder: 1,
+    },
+    // Gameplay
+    {
+      categorySlug: "gameplay",
+      name: "Difficulty",
+      slug: "difficulty",
+      inputType: "select" as const,
+      options: ["Easy", "Normal", "Hard", "Extreme"],
+      impactLevel: "minor" as const,
+      sortOrder: 0,
+    },
+  ]
+
+  let definitionCount = 0
+  for (const def of definitions) {
+    const categoryId = insertedCategories[def.categorySlug]
+    if (!categoryId) continue
+
+    await db
+      .insert(settingDefinitions)
+      .values({
+        categoryId,
+        name: def.name,
+        slug: def.slug,
+        inputType: def.inputType,
+        options: def.options,
+        impactLevel: def.impactLevel,
+        sortOrder: def.sortOrder,
+      })
+      .onConflictDoNothing({ target: settingDefinitions.slug })
+
+    definitionCount++
+  }
+
+  console.log(`Seeded ${definitionCount} setting definitions.`)
+
   await pool.end()
 }