diff --git a/launcher/src/main/resources/webapp/css/styles.css b/launcher/src/main/resources/webapp/css/styles.css
index 5adcf42..a0265d1 100644
--- a/launcher/src/main/resources/webapp/css/styles.css
+++ b/launcher/src/main/resources/webapp/css/styles.css
@@ -686,6 +686,30 @@ body {
     font-size: 13px;
 }
 
+.progress-label {
+    margin-bottom: 8px;
+    font-weight: 500;
+}
+
+.progress-file {
+    font-size: 12px;
+    color: var(--text-muted);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.progress-fill.animated {
+    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
+    background-size: 200% 100%;
+    animation: progressShimmer 1.5s ease-in-out infinite;
+}
+
+@keyframes progressShimmer {
+    0% { background-position: 200% 0; }
+    100% { background-position: -200% 0; }
+}
+
 /* ==================== LOADING ==================== */
 .loading-overlay {
     position: fixed;
diff --git a/launcher/src/main/resources/webapp/js/app.js b/launcher/src/main/resources/webapp/js/app.js
index a3142dd..15b730d 100644
--- a/launcher/src/main/resources/webapp/js/app.js
+++ b/launcher/src/main/resources/webapp/js/app.js
@@ -325,7 +325,43 @@ class App {
         }
 
         this.addLog('Обновление сборки...', 'info');
-        this.showProgress('Обновление сборки...');
+        this.enablePlayButton(false);
+
+        const progressContainer = this.showAnimatedProgress('Обновление сборки...');
+
+        let eventSource = null;
+        let progressData = { totalFiles: 0, downloadedFiles: 0 };
+
+        try {
+            eventSource = new EventSource(`/api/instances/${this.currentInstance.name}/install/stream`);
+            eventSource.onmessage = (e) => {
+                try {
+                    const data = JSON.parse(e.data);
+                    if (data.phase === 'starting') {
+                        progressData.totalFiles = data.totalFiles || 0;
+                        this.updateAnimatedProgress(progressContainer, `Загрузка: 0/${progressData.totalFiles} файлов`, 5);
+                    } else if (data.phase === 'downloading') {
+                        progressData.downloadedFiles = data.downloadedFiles || 0;
+                        const total = data.totalFiles || progressData.totalFiles || 1;
+                        const percent = Math.round((progressData.downloadedFiles / total) * 100);
+                        const fileName = data.currentFile ? data.currentFile.split('/').pop() : '';
+                        const filePercent = data.filePercent || 0;
+                        this.updateAnimatedProgress(progressContainer,
+                            `Файл ${progressData.downloadedFiles}/${total} (${percent}%)`,
+                            percent,
+                            fileName,
+                            filePercent
+                        );
+                    } else if (data.phase === 'complete') {
+                        this.updateAnimatedProgress(progressContainer, 'Готово!', 100);
+                    } else if (data.phase === 'error') {
+                        this.addLog('Ошибка: ' + (data.message || 'неизвестная ошибка'), 'error');
+                    }
+                } catch (err) {}
+            };
+        } catch (e) {
+            console.log('SSE not available, using fallback progress');
+        }
 
         const result = await this.request('/instances/zernmc/install', {
             method: 'POST',
@@ -335,6 +371,10 @@ class App {
             })
         });
 
+        if (eventSource) {
+            eventSource.close();
+        }
+
         this.hideProgress();
 
         if (result.success) {
@@ -362,6 +402,31 @@ class App {
         }
     }
 
+    showAnimatedProgress(text) {
+        const progress = document.getElementById('download-progress');
+        const progressText = document.getElementById('progress-text');
+        const progressFill = document.getElementById('progress-fill');
+
+        progress.classList.remove('hidden');
+        progressText.innerHTML = `<div class="progress-label">${text}</div>
+            <div class="progress-file"></div>`;
+        progressFill.style.width = '5%';
+        progressFill.classList.add('animated');
+
+        return { container: progress, text: progressText, fill: progressFill };
+    }
+
+    updateAnimatedProgress(progressContainer, text, percent, fileName = '', filePercent = 0) {
+        const { text: progressText, fill: progressFill } = progressContainer;
+        if (fileName) {
+            progressText.innerHTML = `<div class="progress-label">${text}</div>
+                <div class="progress-file">${fileName} (${filePercent}%)</div>`;
+        } else {
+            progressText.innerHTML = `<div class="progress-label">${text}</div>`;
+        }
+        progressFill.style.width = percent + '%';
+    }
+
     // ==================== DOWNLOAD MODAL ====================
     async showDownloadModal() {
         document.getElementById('download-modal').classList.remove('hidden');