diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ee8655c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+output
+compile_flags.txt
+build
+xcode-build
+.cache
+macos
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 33d2b94..2883eac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@ aux_source_directory(libs/stb_image     ENGINE_SRC)
 
 add_library(${ENGINE_NAME} STATIC ${ENGINE_SRC})
 
-set(BUILD_SHARED_LIBS CACHE BOOL OFF "Build shared libraries")
+set(GLFW_BUILD_SHARED_LIBRARY CACHE BOOL OFF "Build shared libraries")
 set(GLFW_BUILD_DOCS CACHE BOOL OFF"Build the GLFW documentation")
 set(GLFW_INSTALL CACHE BOOL OFF "Generate installation target")
 add_subdirectory(libs/glfw)
@@ -42,6 +42,11 @@ target_compile_definitions(
     PUBLIC $<$<STREQUAL:$<UPPER_CASE:"${CMAKE_BUILD_TYPE}">,"DEBUG">:GAME_DEBUG>
 )
 
+target_compile_options(
+    ${ENGINE_NAME}
+    PUBLIC $<$<STREQUAL:$<UPPER_CASE:"${CMAKE_BUILD_TYPE}">,"RELEASE">:-Os> -fno-rtti -fno-exceptions
+)
+
 ################
 # space sector
 ################
@@ -63,8 +68,30 @@ target_compile_features(
     PUBLIC cxx_std_17
 )
 
+add_custom_target(
+    CompressExe
+    COMMAND strip ${PROJECT_NAME}
+    COMMAND upx --best --ultra-brute ${PROJECT_NAME}
+    DEPENDS ${PROJECT_NAME}
+    COMMENT "make SpaceSector more small"
+    VERBATIM
+)
+
 #############
 # unit test
 #############
 include(CTest)
 add_subdirectory(tests)
+
+###############
+# install game
+###############
+install(
+    PROGRAMS ${CMAKE_BINARY_DIR}/SpaceSector
+    DESTINATION ${PROJECT_SOURCE_DIR}/output
+)
+
+install(
+    DIRECTORY ${PROJECT_SOURCE_DIR}/assets
+    DESTINATION ${PROJECT_SOURCE_DIR}/output
+)
diff --git a/ReadMe.md b/ReadMe.md
index 3d821df..e4299bc 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -2,3 +2,25 @@
 
 为1MGames游戏开发大赛制作的游戏。
 
+## 编译方法
+
+使用CMake 3.20及以上进行编译。  
+
+```bash
+cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build
+```
+
+如果想要压缩文件至1M以下，你需要有`strip`程序和`upx`程序，并执行：
+
+```bash
+cmake --build build --target CompressExe
+```
+
+编译好后执行pack程序打包：
+
+```bash
+pack.sh
+```
+
+最终的结果在`output`文件夹下。
diff --git a/include/tinyengine/engine.hpp b/include/tinyengine/engine.hpp
index fbc3d1a..ebf6a34 100644
--- a/include/tinyengine/engine.hpp
+++ b/include/tinyengine/engine.hpp
@@ -4,6 +4,8 @@
 #include "renderer.hpp"
 #include "scence.hpp"
 #include "inner_bmpfont.hpp"
+#include "event.hpp"
+#include "tool.hpp"
 
 class Engine final {
 public:
diff --git a/include/tinyengine/pch.hpp b/include/tinyengine/pch.hpp
index 44e7c06..d07016a 100644
--- a/include/tinyengine/pch.hpp
+++ b/include/tinyengine/pch.hpp
@@ -4,7 +4,6 @@
 #include "GLFW/glfw3.h"
 #include "stb_image.h"
 #include <string>
-#include <exception>
 #include <vector>
 #include <iostream>
 #include <memory>
@@ -20,6 +19,7 @@
 #include <stack>
 #include <utility>
 #include <limits>
+#include <cassert>
 
 #ifdef USE_GLM
 #include "glm/glm.hpp"
diff --git a/include/tinyengine/tool.hpp b/include/tinyengine/tool.hpp
index 9fa13ca..22d567b 100644
--- a/include/tinyengine/tool.hpp
+++ b/include/tinyengine/tool.hpp
@@ -1,4 +1,5 @@
 #pragma once
+
 #include "pch.hpp"
 
 template <typename T>
@@ -6,3 +7,9 @@ using Unique = std::unique_ptr<T>;
 
 template <typename T>
 using Ref = std::shared_ptr<T>;
+
+#ifdef GAME_DEBUG
+#define FATAL_ERROR(msg) assert((void(msg), false))
+#else
+#define FATAL_ERROR(msg)
+#endif
diff --git a/libs/stb_image/stbi_image.cpp b/libs/stb_image/stbi_image.cpp
index 8ddfd1f..f81a87a 100644
--- a/libs/stb_image/stbi_image.cpp
+++ b/libs/stb_image/stbi_image.cpp
@@ -1,2 +1,3 @@
 #define STB_IMAGE_IMPLEMENTATION
+#define STBI_ONLY_PNG
 #include "stb_image.h"
diff --git a/pack.sh b/pack.sh
new file mode 100755
index 0000000..3c962b5
--- /dev/null
+++ b/pack.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [ -d "./output" ]; then
+  rm -r ./output
+fi
+
+mkdir output
+cp ./build/SpaceSector output
+cp -r ./assets output
diff --git a/src/tinyengine/engine.cpp b/src/tinyengine/engine.cpp
index c082d2b..ee9504f 100644
--- a/src/tinyengine/engine.cpp
+++ b/src/tinyengine/engine.cpp
@@ -1,5 +1,4 @@
 #include "engine.hpp"
-#include "event.hpp"
 
 void error_callback(int error, const char* description) {
     fprintf(stderr, "Error: %s\n", description);
@@ -7,7 +6,7 @@ void error_callback(int error, const char* description) {
 
 void Engine::Init(const std::string& title, const Size& size, Scence* scence) {
     if (!glfwInit()) {
-        throw std::runtime_error("glfw init failed");
+        FATAL_ERROR("glfw init failed");
     }
     glfwSetErrorCallback(error_callback);
 
@@ -23,7 +22,7 @@ void Engine::Init(const std::string& title, const Size& size, Scence* scence) {
 
     if (!window_) {
         glfwTerminate();
-        throw std::runtime_error("glfw window create failed");
+        FATAL_ERROR("glfw window create failed");
     }
 
     glfwMakeContextCurrent(window_);
@@ -32,7 +31,7 @@ void Engine::Init(const std::string& title, const Size& size, Scence* scence) {
 
     if (!gladLoadGL(glfwGetProcAddress)) {
         glfwTerminate();
-        throw std::runtime_error("glad load failed");
+        FATAL_ERROR("glad load failed");
     }
 
     int width, height;
diff --git a/src/tinyengine/renderer.cpp b/src/tinyengine/renderer.cpp
index 0e32ee4..69f3814 100644
--- a/src/tinyengine/renderer.cpp
+++ b/src/tinyengine/renderer.cpp
@@ -59,7 +59,7 @@ void initShader(const std::string& vertex, const std::string& fragment) {
     std::ifstream file(vertex);
     if (file.fail()) {
         Log("vertex shader %s load failed", vertex.c_str());
-        throw std::runtime_error("vertex shader load failed");
+        FATAL_ERROR("vertex shader load failed");
     }
     std::string vertexCode((std::istreambuf_iterator<char>(file)),
                             std::istreambuf_iterator<char>());
@@ -68,7 +68,7 @@ void initShader(const std::string& vertex, const std::string& fragment) {
     file.open(fragment);
     if (file.fail()) {
         Log("fragment shader %s load failed", fragment.c_str());
-        throw std::runtime_error("fragment shader load failed");
+        FATAL_ERROR("fragment shader load failed");
     }
     std::string fragmentCode((std::istreambuf_iterator<char>(file)),
                               std::istreambuf_iterator<char>());
@@ -88,8 +88,8 @@ void setShaderOrtho() {
 void Renderer::Init() {
     createWhiteTexture();
     initRenderContext();
-    initShader("./assets/shaders/vertex.shader",
-               "./assets/shaders/fragment.shader");
+    initShader("assets/shaders/vertex.shader",
+               "assets/shaders/fragment.shader");
     setShaderOrtho();
 }
 
diff --git a/tests/unittest.hpp b/tests/unittest.hpp
index b476a99..cdb49a5 100644
--- a/tests/unittest.hpp
+++ b/tests/unittest.hpp
@@ -1,18 +1,19 @@
 #pragma once
 
 #include "tinyengine/libmath.hpp"
+#include "tinyengine/tool.hpp"
 
 #define TEST_TRUE(condition) do { \
     if (!(condition)) { \
         std::cout << "[TEST_TRUE] " << #condition << " test failed!" << std::endl; \
-        throw std::runtime_error("TEST TRUE failed"); \
+        FATAL_ERROR("TEST TRUE failed"); \
     } \
 } while(0)
 
 #define TEST_FALSE(condition) do { \
     if (condition) { \
         std::cout << "[TEST FALSE] " << #condition << " test failed!" << std::endl; \
-        throw std::runtime_error("TEST FALSE failed"); \
+        FATAL_ERROR("TEST FALSE failed"); \
     } \
 } while(0)