diff --git a/README.md b/README.md
index 51946ed..22a8993 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ Use mouse to look.
 | `F2`         | Hide GUI                   |
 | `F3`         | Toggle debug menu          |
 | `F5`         | Reload assets / shaders    |
+| `F11`        | Toggle Fullscreen          |
 
 The FreeCam™ mode uses WASD movement and the scrolling to change speed.
 
diff --git a/src/Game.cpp b/src/Game.cpp
index d762ae9..b39458c 100644
--- a/src/Game.cpp
+++ b/src/Game.cpp
@@ -250,6 +250,16 @@ void Game::processInput_() {
     if (input->isKeyPress(GLFW_KEY_F2)) {
         ui->setHidden(!ui->hidden());
     }
+
+    if (input->isKeyPress(GLFW_KEY_F11)) {
+        if (glfwGetWindowAttrib(window, GLFW_DECORATED) == GLFW_TRUE) {
+            glfwSetWindowAttrib(window, GLFW_DECORATED, GLFW_FALSE);
+            glfwMaximizeWindow(window);
+        } else {
+            glfwRestoreWindow(window);
+            glfwSetWindowAttrib(window, GLFW_DECORATED, GLFW_TRUE);
+        }
+    }
 }
 
 void Game::update_() {