diff --git a/Minecraft-Modern-Theme/404.php b/Minecraft-Modern-Theme/404.php
new file mode 100644
index 0000000..6c8a344
--- /dev/null
+++ b/Minecraft-Modern-Theme/404.php
@@ -0,0 +1,192 @@
+<?php get_header(); ?>
+
+<main id="primary" class="site-main">
+    <div class="container">
+        <div class="content-area">
+
+            <div class="error-404-container">
+
+                <div class="error-404-visual">
+                    <div class="error-404-code">404</div>
+                    <div class="error-404-blocks">
+                        <!-- Minecraft-style Blöcke als Dekoration -->
+                        <span class="block block-grass"></span>
+                        <span class="block block-dirt"></span>
+                        <span class="block block-stone"></span>
+                    </div>
+                </div>
+
+                <div class="error-404-content">
+                    <h1 class="error-404-title">
+                        <?php _e('Diese Seite ist verloren gegangen...', 'minecraft-modern-theme'); ?>
+                    </h1>
+                    <p class="error-404-subtitle">
+                        <?php _e('Wie eine Map ohne Spawn-Punkt – diese Seite existiert nicht (mehr).', 'minecraft-modern-theme'); ?>
+                    </p>
+
+                    <div class="error-404-actions">
+                        <a href="<?php echo esc_url( home_url('/') ); ?>" class="error-404-btn primary">
+                            <i class="fas fa-home"></i> <?php _e('Zur Startseite', 'minecraft-modern-theme'); ?>
+                        </a>
+                        <a href="javascript:history.back()" class="error-404-btn secondary">
+                            <i class="fas fa-arrow-left"></i> <?php _e('Zurück', 'minecraft-modern-theme'); ?>
+                        </a>
+                    </div>
+
+                    <!-- Suchformular -->
+                    <div class="error-404-search">
+                        <p><?php _e('Oder suche direkt nach dem was du brauchst:', 'minecraft-modern-theme'); ?></p>
+                        <?php get_search_form(); ?>
+                    </div>
+
+                    <!-- Letzte Beiträge als Hilfestellung -->
+                    
+
+                </div>
+            </div>
+
+        </div>
+    </div>
+</main>
+
+<style>
+.error-404-container {
+    display: flex;
+    gap: 60px;
+    align-items: center;
+    padding: 60px 0;
+    min-height: 60vh;
+}
+
+.error-404-visual {
+    flex-shrink: 0;
+    text-align: center;
+}
+
+.error-404-code {
+    font-size: clamp(80px, 15vw, 160px);
+    font-weight: 900;
+    line-height: 1;
+    color: var(--primary-accent, #00d4ff);
+    text-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
+    letter-spacing: -4px;
+}
+
+.error-404-blocks {
+    display: flex;
+    justify-content: center;
+    gap: 6px;
+    margin-top: 16px;
+}
+
+.block {
+    width: 32px;
+    height: 32px;
+    border-radius: 4px;
+    display: inline-block;
+    image-rendering: pixelated;
+}
+.block-grass  { background: linear-gradient(to bottom, #5c8a1e 40%, #6b4c2a 40%); }
+.block-dirt   { background: #6b4c2a; }
+.block-stone  { background: #888; }
+
+.error-404-content {
+    flex: 1;
+}
+
+.error-404-title {
+    font-size: clamp(1.4rem, 3vw, 2rem);
+    margin: 0 0 12px;
+}
+
+.error-404-subtitle {
+    color: var(--text-muted, #a0a0a0);
+    margin-bottom: 30px;
+    font-size: 1.05rem;
+}
+
+.error-404-actions {
+    display: flex;
+    gap: 12px;
+    flex-wrap: wrap;
+    margin-bottom: 30px;
+}
+
+.error-404-btn {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+    padding: 12px 24px;
+    border-radius: 6px;
+    font-weight: 600;
+    text-decoration: none;
+    transition: transform 0.2s ease, box-shadow 0.2s ease;
+}
+.error-404-btn:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
+}
+.error-404-btn.primary {
+    background: var(--primary-accent, #00d4ff);
+    color: #fff;
+}
+.error-404-btn.secondary {
+    background: var(--card-bg);
+    color: inherit;
+    border: 1px solid rgba(255,255,255,0.1);
+}
+
+.error-404-search {
+    margin-bottom: 30px;
+}
+.error-404-search p {
+    color: var(--text-muted, #a0a0a0);
+    margin-bottom: 10px;
+}
+
+.error-404-recent h3 {
+    font-size: 1rem;
+    color: var(--text-muted, #a0a0a0);
+    margin-bottom: 12px;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+}
+.error-404-recent-list {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+.error-404-recent-list li {
+    padding: 8px 0;
+    border-bottom: 1px solid rgba(255,255,255,0.06);
+    display: flex;
+    align-items: center;
+    gap: 10px;
+}
+.error-404-recent-list li i {
+    color: var(--primary-accent, #00d4ff);
+    font-size: 0.75rem;
+    flex-shrink: 0;
+}
+.error-404-recent-list a {
+    text-decoration: none;
+    transition: color 0.2s;
+}
+.error-404-recent-list a:hover {
+    color: var(--primary-accent, #00d4ff);
+}
+
+@media (max-width: 768px) {
+    .error-404-container {
+        flex-direction: column;
+        gap: 30px;
+        padding: 40px 0;
+        text-align: center;
+    }
+    .error-404-actions {
+        justify-content: center;
+    }
+}
+</style>
+
+<?php get_footer(); ?>
\ No newline at end of file