# clone the game's repository
$ git clone https://github.com/obielwb/space-invaders.git

# cd into the game's directory
$ cd space-invaders

# create the game's virtual environment
$ python -m venv venv

# activate the game's virtual environment
$ source ./venv/bin/activate
# or
$ ./venv/Scripts/activate.bat

# install the game's required libraries
$ pip install -r requirements.txt

# cd into the pygame's directory
$ cd space-invaders

# launch the game
$ python game.py