Make sure the Qt (>= 5.6) development libraries are installed:

• In Ubuntu/Debian: apt-get install qt5-default qttools5-dev-tools zlib1g-dev
• In Fedora: sudo dnf builddep tiled
• In Arch Linux: pacman -S qt
• In Mac OS X with Homebrew:
  • brew install qt5
  • brew link qt5 --force
• Or you can download Qt from: https://www.qt.io/download-open-source/

Now you can compile by running:

qmake (or qmake-qt5 on some systems)
make

To do a shadow build, you can run qmake from a different directory and refer it to space-invaders.pro, for example:

mkdir build
cd build
qmake ../src/space-invaders.pro
make

• Menu
  • ↑ / ↓ - Navigate menu
  • Enter - Select option
  • ← / → - Change parameters
• Game
  • ← / → - Move
  • Space - Shoot
  • P - Pause
  • Esc / Q - Exit game