diff --git a/semestralka1/src/game/game_over.cpp b/semestralka1/src/game/game_over.cpp
new file mode 100644
index 0000000..232408c
--- /dev/null
+++ b/semestralka1/src/game/game_over.cpp
@@ -0,0 +1,13 @@
+// src/game/game_over.cpp
+#include "game_over.h"
+#include <cstdio>
+
+void show_game_over_screen(int seconds) {
+    printf("\033[2J\033[H");
+    printf("==================================\r\n");
+    printf("         G A M E   O V E R        \r\n");
+    printf("==================================\r\n");
+    printf("  Vydrzal si %d sekund.     \r\n", seconds);
+    printf("==================================\r\n");
+    fflush(stdout);
+}
diff --git a/semestralka1/src/game/game_over.h b/semestralka1/src/game/game_over.h
new file mode 100644
index 0000000..d4b0db6
--- /dev/null
+++ b/semestralka1/src/game/game_over.h
@@ -0,0 +1,7 @@
+// src/game/game_over.h
+#pragma once
+#include "mbed.h"
+
+// Displays game over message with elapsed time.
+// Takes a Timer that was measuring game duration.
+void show_game_over_screen(int seconds);
diff --git a/semestralka1/src/game/game_state.h b/semestralka1/src/game/game_state.h
index c0bd079..c60d65c 100644
--- a/semestralka1/src/game/game_state.h
+++ b/semestralka1/src/game/game_state.h
@@ -26,6 +26,7 @@ struct GameState {
     int current_speed;
     ObstacleRenderData obstacles[MAX_RENDER_OBSTACLES];
     
+    int elapsed_seconds;
     bool game_over;
     bool need_redraw;
 };
diff --git a/semestralka1/src/render/loop.cpp b/semestralka1/src/render/loop.cpp
index 261dc33..0f44285 100644
--- a/semestralka1/src/render/loop.cpp
+++ b/semestralka1/src/render/loop.cpp
@@ -6,6 +6,7 @@
 #include "mbed.h"
 #include "player.h"
 #include "background.h"
+#include "../game/game_over.h"
 #include "../game/game_state.h"
 #include "../game/state.h"
 #include "../game/animation.h"
@@ -46,6 +47,8 @@ void logic_loop(void *arg) {
   int anim_tick_counter = 0;
   int tick_counter = 0;
   bool game_over = false;
+  Timer game_timer;
+  game_timer.start();
 
   // Spawn first obstacle
   if (speed >= 5)
@@ -138,8 +141,11 @@ void logic_loop(void *arg) {
     ThisThread::sleep_for(25ms);
   }
 
-  // final update
+  game_timer.stop();
+  int seconds = static_cast<int>(game_timer.elapsed_time().count() / 1000000);
+
   g_state_mutex.lock();
+  g_state.elapsed_seconds = seconds;
   g_state.game_over = true;
   g_state_mutex.unlock();
 }
@@ -154,8 +160,7 @@ void render_loop_thread() {
     g_state_mutex.unlock();
 
     if (over) {
-      printf("\033[2J\033[H");
-      printf("GAME OVER\r\n");
+      show_game_over_screen(local.elapsed_seconds);
       break;
     }