diff --git a/CMakeLists.txt b/CMakeLists.txt
index a3ec4164..069d046f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/lib)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/lib)
 
 if (UNIX)
-	add_definitions(-std=c++11)
+	add_definitions(-std=c++11 -Wno-unknown-warning-option)
 	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin/${CMAKE_BUILD_TYPE})
 else ()
 	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
@@ -43,6 +43,15 @@ find_package(CLANG REQUIRED PATHS "${CMAKE_SOURCE_DIR}/cmake")
 
 add_definitions(${CLANG_DEFINITIONS})
 
+# Boost ------------------------------------------------------------------------
+
+set(BOOST_ROOT $ENV{BOOST_155_DIR})
+set(Boost_USE_MULTITHREAD ON)
+set(Boost_USE_STATIC_LIBS OFF)
+set(Boost_USE_STATIC_RUNTIME OFF)
+set(BOOST_LIBRARYDIR $ENV{BOOST_155_DIR})
+find_package( Boost 1.55 COMPONENTS system filesystem REQUIRED )
+
 # Lib --------------------------------------------------------------------------
 
 
@@ -71,12 +80,12 @@ set_property(
 		"${CMAKE_SOURCE_DIR}/src/external"
 		${LLVM_INCLUDE_DIRS}
 		${CLANG_INCLUDE_DIRS}
+		${Boost_INCLUDE_DIRS}
 )
 
-link_directories(${LLVM_LIBRARY_DIRS} ${CLANG_LIBRARY_DIRS})
-
-target_link_libraries(${LIB_PROJECT_NAME} ${CLANG_LIBRARIES} ${LLVM_AVAILABLE_LIBS})
+link_directories(${LLVM_LIBRARY_DIRS} ${CLANG_LIBRARY_DIRS} ${Boost_LIBRARY_DIRS})
 
+target_link_libraries(${LIB_PROJECT_NAME} ${CLANG_LIBRARIES} ${LLVM_AVAILABLE_LIBS} ${Boost_LIBRARIES})
 
 # App --------------------------------------------------------------------------
 
@@ -118,7 +127,6 @@ configure_file(
 
 set(CMAKE_AUTOMOC OFF)
 
-
 # CxxTest ----------------------------------------------------------------------
 
 add_subdirectory(src/test)
diff --git a/README.md b/README.md
index 588c4bc7..32d9e06a 100644
--- a/README.md
+++ b/README.md
@@ -8,12 +8,14 @@
 * CxxTest 4.3
 * Valgrind 3.9.0(linux, macOS)
 * Clang & LLVM (installation guide http://clang.llvm.org/docs/LibASTMatchersTutorial.html)
+* Boost 1.55 ()
 
 ##### Environment Variables
 
 * QT_DIR - ...\Qt\Qt5.2.1\5.2.1\<IDE>\
 * CXX_TEST_DIR - .../cxxtest-4.3/
 * CLANG_DIR - .../clang-llvm/
+* BOOST_155_DIR - .../boost_1_55_0
 
 For Win32:
 * VLD_DIR - .../Visual Leak Detector
diff --git a/bin/data/src/Settings/player.h b/bin/data/src/Settings/player.h
new file mode 100644
index 00000000..3d3a6acc
--- /dev/null
+++ b/bin/data/src/Settings/player.h
@@ -0,0 +1,21 @@
+#ifndef _PLAYER_
+#define _PLAYER_
+
+#include <string>
+
+#include "field.h"
+
+class Player {
+public:
+	Player( Field::Token token, const std::string& name )
+		: token_( token )
+		, name_( name ) {
+	}
+
+	virtual Field::Move Turn( const Field& field ) const = 0;
+
+	const Field::Token token_;
+	const std::string name_;
+};
+
+#endif // _PLAYER_
diff --git a/bin/data/src/Settings/sample.cpp b/bin/data/src/Settings/sample.cpp
new file mode 100644
index 00000000..3da1b3ce
--- /dev/null
+++ b/bin/data/src/Settings/sample.cpp
@@ -0,0 +1,33 @@
+class Player {
+public:
+  void Do() {}
+};
+
+class Base {};
+
+class Game : public Base {
+public:
+  Game() {
+    Init();
+  }
+
+  void Init() {}
+
+  void Run() {
+    player.Do();
+  }
+
+private:
+  Player player;
+};
+
+Game* game;
+
+int main() {
+  game = new Game();
+
+  game->Run();
+
+  delete game;
+  return 0;
+}
diff --git a/bin/data/src/Sound.hpp b/bin/data/src/Sound.hpp
new file mode 100644
index 00000000..e69de29b
diff --git a/bin/data/src/main.cpp b/bin/data/src/main.cpp
new file mode 100644
index 00000000..f4bb5ef9
--- /dev/null
+++ b/bin/data/src/main.cpp
@@ -0,0 +1,11 @@
+#include "tictactoe.h"
+
+int main() {
+	TicTacToe tictactoe;
+
+	while ( tictactoe.Start() ) {
+		tictactoe.Run();
+	}
+
+	return 0;
+}
\ No newline at end of file
diff --git a/bin/data/src/tictactoe.h b/bin/data/src/tictactoe.h
new file mode 100644
index 00000000..c84071c3
--- /dev/null
+++ b/bin/data/src/tictactoe.h
@@ -0,0 +1,93 @@
+#ifndef _TIC_TAC_TOE_
+#define _TIC_TAC_TOE_
+
+#include "computer.h"
+#include "field.h"
+#include "human.h"
+#include "input.h"
+#include "player.h"
+
+class TicTacToe {
+public:
+	TicTacToe() {
+		players_[0] = NULL;
+		players_[1] = NULL;
+	}
+
+	~TicTacToe() {
+		Reset();
+	}
+
+	bool Start() {
+		Reset();
+		std::cout << "Tic Tac Toe\n\n[1] Human\n[2] Computer\n[3] Quit\n\n";
+
+		players_[0] = SelectPlayer( Field::PlayerA, "PlayerA" );
+		if ( !players_[0] ) {
+			return false;
+		}
+
+		players_[1] = SelectPlayer( Field::PlayerB, "PlayerB" );
+		if ( !players_[1] ) {
+			return false;
+		}
+
+		std::cout << '\n';
+		return true;
+	}
+
+	void Run() {
+		field_.Show();
+
+		int playerIndex = 0;
+
+		for ( int i = 0; i < 9; i++ ) {
+			Player& player = *players_[playerIndex];
+
+			field_.MakeMove( player.Turn( field_ ), player.token_ );
+			field_.Show();
+
+			if ( field_.SameInRow( player.token_, 3 ) ) {
+				std::cout << player.name_ << " won!\n\n";
+				return;
+			}
+
+			playerIndex = ( playerIndex + 1 ) % 2;
+		}
+
+		std::cout << "Game ends in draw!\n\n";
+	}
+
+private:
+	void Reset() {
+		field_.Clear();
+
+		for ( int i = 0; i < 2; i++ ) {
+			if ( players_[i] ) {
+				delete players_[i];
+				players_[i] = NULL;
+			}
+		}
+	}
+
+	Player* SelectPlayer( Field::Token token, const std::string& name ) const {
+		int selection;
+
+		while ( true ) {
+			std::cout << "Choose " << name << ": ";
+			input::number( &selection );
+
+			switch ( selection ) {
+				case 1 : return new HumanPlayer( token, name );
+				case 2 : return new ArtificialPlayer( token, name );
+				case 3 : return NULL;
+				default : std::cout << "Wrong input!\n";
+			}
+		}
+	}
+
+	Player* players_[2];
+	Field field_;
+};
+
+#endif // _TIC_TAC_TOE_
\ No newline at end of file
diff --git a/bin/data/test_ProjectSettings.xml b/bin/data/test_ProjectSettings.xml
new file mode 100644
index 00000000..457d962f
--- /dev/null
+++ b/bin/data/test_ProjectSettings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<config>
+	<SourcePath>the/awesome/path/to/the/code</SourcePath>
+</config>
+
diff --git a/script/valgrind_debug.sh b/script/valgrind_debug.sh
index 3e8bbc2b..8477361c 100755
--- a/script/valgrind_debug.sh
+++ b/script/valgrind_debug.sh
@@ -6,4 +6,4 @@ MY_PATH=`dirname "$0"`
 cd $MY_PATH/..
 
 # Build and run target
-make -C build/Debug "$1" && cd bin && valgrind --tool=memcheck --leak-check=yes --log-file=../build/Debug/"$1".leaklog Debug/"$1"
+ninja -C build/Debug "$1" && cd bin && valgrind --tool=memcheck --leak-check=yes --log-file=../build/Debug/"$1".leaklog Debug/"$1"
diff --git a/script/valgrind_release.sh b/script/valgrind_release.sh
index db9fadef..44eb763f 100755
--- a/script/valgrind_release.sh
+++ b/script/valgrind_release.sh
@@ -6,4 +6,4 @@ MY_PATH=`dirname "$0"`
 cd $MY_PATH/..
 
 # Build and run target
-make -C build/Release "$1" && cd bin && valgrind --tool=memcheck --leak-check=yes --log-file=../build/Release/"$1".leaklog Release/"$1"
+ninja -C build/Release "$1" && cd bin && valgrind --tool=memcheck --leak-check=yes --log-file=../build/Release/"$1".leaklog Release/"$1"
diff --git a/setup/dynamic_libraries/windows/Debug/boost_filesystem-vc110-mt-gd-1_55.dll b/setup/dynamic_libraries/windows/Debug/boost_filesystem-vc110-mt-gd-1_55.dll
new file mode 100644
index 00000000..4a5fc426
Binary files /dev/null and b/setup/dynamic_libraries/windows/Debug/boost_filesystem-vc110-mt-gd-1_55.dll differ
diff --git a/setup/dynamic_libraries/windows/Debug/boost_system-vc110-mt-gd-1_55.dll b/setup/dynamic_libraries/windows/Debug/boost_system-vc110-mt-gd-1_55.dll
new file mode 100644
index 00000000..8320a9a1
Binary files /dev/null and b/setup/dynamic_libraries/windows/Debug/boost_system-vc110-mt-gd-1_55.dll differ
diff --git a/setup/dynamic_libraries/windows/Release/boost_filesystem-vc110-mt-1_55.dll b/setup/dynamic_libraries/windows/Release/boost_filesystem-vc110-mt-1_55.dll
new file mode 100644
index 00000000..13da5e64
Binary files /dev/null and b/setup/dynamic_libraries/windows/Release/boost_filesystem-vc110-mt-1_55.dll differ
diff --git a/setup/dynamic_libraries/windows/Release/boost_system-vc110-mt-1_55.dll b/setup/dynamic_libraries/windows/Release/boost_system-vc110-mt-1_55.dll
new file mode 100644
index 00000000..cab758b0
Binary files /dev/null and b/setup/dynamic_libraries/windows/Release/boost_system-vc110-mt-1_55.dll differ
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index d9b2dea5..38dc28b4 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -98,7 +98,7 @@ add_files(
 	utility/logging/LogManagerImplementation.cpp
 	utility/logging/LogManagerImplementation.h
 	utility/logging/LogMessage.h
-	
+
 	utility/math/Color.h
 	utility/math/Vector2.h
 	utility/math/Vector4.h
@@ -112,6 +112,8 @@ add_files(
 
 	utility/ConfigManager.cpp
 	utility/ConfigManager.h
+	utility/FileSystem.cpp
+	utility/FileSystem.h
 	utility/Vector.h
 
 	Application.cpp
diff --git a/src/lib/utility/FileSystem.cpp b/src/lib/utility/FileSystem.cpp
new file mode 100644
index 00000000..ed0deebd
--- /dev/null
+++ b/src/lib/utility/FileSystem.cpp
@@ -0,0 +1,43 @@
+#include "utility/FileSystem.h"
+
+#include "boost/filesystem.hpp"
+#include "utility/logging/logging.h"
+
+std::vector<std::string> FileSystem::getSourceFilesFromDirectory(
+	const std::string& path, const std::vector<std::string>& extensions
+)
+{
+	std::vector<std::string> files;
+	if (boost::filesystem::is_directory(path))
+	{
+		boost::filesystem::recursive_directory_iterator it(path);
+		boost::filesystem::recursive_directory_iterator endit;
+		while(it != endit)
+		{
+			if (boost::filesystem::is_regular_file(*it) && isValidExtension(it->path().string(), extensions))
+			{
+				files.push_back(it->path().string());
+			}
+			++it;
+		}
+	}
+	return files;
+}
+
+bool FileSystem::isValidExtension(const std::string& filepath, const std::vector<std::string>& extensions)
+{
+	boost::filesystem::path path(filepath);
+	for(std::string extension : extensions)
+	{
+		if(path.extension() == extension)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+bool FileSystem::exists(const std::string& path)
+{
+	return boost::filesystem::exists(boost::filesystem::path(path));
+}
diff --git a/src/lib/utility/FileSystem.h b/src/lib/utility/FileSystem.h
new file mode 100644
index 00000000..94f72037
--- /dev/null
+++ b/src/lib/utility/FileSystem.h
@@ -0,0 +1,18 @@
+#ifndef FILE_SYSTEM_H
+#define FILE_SYSTEM_H
+
+#include <string>
+#include <vector>
+
+class FileSystem
+{
+public:
+	static std::vector<std::string> getSourceFilesFromDirectory(
+		const std::string& path, const std::vector<std::string>& extensions
+	);
+	static bool exists(const std::string& path);
+private:
+	static bool isValidExtension(const std::string& filepath, const std::vector<std::string>& extensions);
+};
+
+#endif // FILE_SYSTEM_H
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index db11e981..138e52ef 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -3,6 +3,7 @@ add_files(
 
 	ConfigManagerTestSuite.h
 	CxxParserTestSuite.h
+	FileSystemTestSuite.h
 	LogManagerTestSuite.h
 	MessageQueueTestSuite.h
 	TestSuiteFixture.cpp
diff --git a/src/test/FileSystemTestSuite.h b/src/test/FileSystemTestSuite.h
new file mode 100644
index 00000000..125d9c68
--- /dev/null
+++ b/src/test/FileSystemTestSuite.h
@@ -0,0 +1,65 @@
+#include "cxxtest/TestSuite.h"
+
+#include <algorithm>
+#include <string>
+#include <vector>
+
+#include "utility/FileSystem.h"
+
+class FileSystemTestSuite : public CxxTest::TestSuite
+{
+public:
+	void test_find_cpp_files()
+	{
+		std::vector<std::string> extensions;
+		extensions.push_back(".cpp");
+
+		std::vector<std::string> cppFiles = FileSystem::getSourceFilesFromDirectory("data/src",extensions);
+
+		TS_ASSERT_EQUALS(cppFiles.size(), 2)
+		TS_ASSERT(isInVector(cppFiles, "data/src/main.cpp"))
+		TS_ASSERT(isInVector(cppFiles, "data/src/Settings/sample.cpp"))
+	}
+
+	void test_find_h_files()
+	{
+		std::vector<std::string> extensions;
+		extensions.push_back(".h");
+
+		std::vector<std::string> headerFiles = FileSystem::getSourceFilesFromDirectory("data/src",extensions);
+
+		TS_ASSERT_EQUALS(headerFiles.size(), 2)
+		TS_ASSERT(isInVector(headerFiles, "data/src/tictactoe.h"))
+		TS_ASSERT(isInVector(headerFiles, "data/src/Settings/player.h"))
+	}
+
+	void test_find_all_source_files()
+	{
+		std::vector<std::string> extensions;
+		extensions.push_back(".h");
+		extensions.push_back(".hpp");
+		extensions.push_back(".cpp");
+
+		std::vector<std::string> sourceFiles = FileSystem::getSourceFilesFromDirectory("data/src",extensions);
+
+		TS_ASSERT_EQUALS(sourceFiles.size(), 5)
+	}
+
+	void test_filesystem_finds_existing_files()
+	{
+		TS_ASSERT(FileSystem::exists("data/src"))
+		TS_ASSERT(FileSystem::exists("data/src/tictactoe.h"));
+	}
+
+	void test_filesystem_does_not_find_non_existing_files()
+	{
+		TS_ASSERT(!FileSystem::exists("data/foo"));
+		TS_ASSERT(!FileSystem::exists("data/src/blabla.h"));
+	}
+
+private:
+	bool isInVector(const std::vector<std::string>& files, const std::string filename)
+	{
+		return std::end(files) != std::find(std::begin(files), std::end(files), filename);
+	}
+};