diff --git a/package.json b/package.json
index 9ea8c8a..312657f 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "sociowire-frontend",
   "private": true,
-  "version": "0.0.113",
+  "version": "0.0.114",
   "type": "module",
   "scripts": {
     "dev": "vite --host 0.0.0.0",
diff --git a/src/components/World/IslandsWorld.css b/src/components/World/IslandsWorld.css
index f51d760..e90ef67 100644
--- a/src/components/World/IslandsWorld.css
+++ b/src/components/World/IslandsWorld.css
@@ -117,6 +117,36 @@
   transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
+/* Owner badge on island */
+.island-owner-badge {
+  position: absolute;
+  top: -10px;
+  left: 50%;
+  transform: translateX(-50%);
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  background: linear-gradient(135deg, #10b981, #059669);
+  padding: 6px 12px;
+  border-radius: 20px;
+  color: white;
+  font-size: 11px;
+  font-weight: 700;
+  white-space: nowrap;
+  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.5);
+  z-index: 10;
+  animation: badgePulse 2s ease-in-out infinite;
+}
+
+.island-owner-badge i {
+  font-size: 12px;
+}
+
+@keyframes badgePulse {
+  0%, 100% { box-shadow: 0 4px 12px rgba(16, 185, 129, 0.5); }
+  50% { box-shadow: 0 4px 20px rgba(16, 185, 129, 0.8); }
+}
+
 .island-marker:hover {
   transform: scale(1.15) translateY(-8px);
   z-index: 100;
@@ -614,6 +644,48 @@
   margin-right: 4px;
 }
 
+/* Floating create post button */
+.island-create-post-fab {
+  position: fixed;
+  bottom: 24px;
+  right: 24px;
+  z-index: 800;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 16px 28px;
+  background: linear-gradient(135deg, #10b981, #059669);
+  border: none;
+  border-radius: 50px;
+  color: white;
+  font-size: 15px;
+  font-weight: 700;
+  cursor: pointer;
+  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.5);
+  transition: all 0.3s ease;
+  animation: fabPop 0.4s ease;
+}
+
+@keyframes fabPop {
+  from {
+    opacity: 0;
+    transform: scale(0.8) translateY(20px);
+  }
+  to {
+    opacity: 1;
+    transform: scale(1) translateY(0);
+  }
+}
+
+.island-create-post-fab:hover {
+  transform: scale(1.08);
+  box-shadow: 0 12px 40px rgba(16, 185, 129, 0.6);
+}
+
+.island-create-post-fab i {
+  font-size: 18px;
+}
+
 /* Responsive */
 @media (max-width: 768px) {
   .islands-world-title {
diff --git a/src/components/World/IslandsWorld.jsx b/src/components/World/IslandsWorld.jsx
index 657d0b1..da2182b 100644
--- a/src/components/World/IslandsWorld.jsx
+++ b/src/components/World/IslandsWorld.jsx
@@ -333,6 +333,21 @@ export default function IslandsWorld({ theme, onIslandClick, onOpenMap, onOpenPl
               <IslandPost key={post.id || idx} post={post} index={idx} islandSeed={zoomedIsland.seed || 0} />
             ))}
           </div>
+
+          {/* Floating create post button for island owner */}
+          {username && username.toLowerCase() === (zoomedIsland.username || '').toLowerCase() && (
+            <button
+              className="island-create-post-fab"
+              onClick={() => {
+                window.dispatchEvent(new CustomEvent('sociowire:create-post', {
+                  detail: { island: zoomedIsland.username }
+                }));
+              }}
+            >
+              <i className="fa-solid fa-plus" />
+              <span>{t('worlds.newPost')}</span>
+            </button>
+          )}
         </div>
       )}
 
@@ -370,6 +385,12 @@ function createIslandMarker(island, idx, t, currentUsername) {
 
   el.innerHTML = `
     <div class="island-marker-inner" style="animation-delay: ${(idx % 12) * 0.25}s;">
+      ${isOwner ? `
+        <div class="island-owner-badge">
+          <i class="fa-solid fa-home"></i>
+          <span>Mon île</span>
+        </div>
+      ` : ''}
       ${islandSVG}
       <div class="island-marker-label">
         <span class="island-marker-name" style="color: ${color}">@${island.username}</span>