Clone Invader

Clone Invader is a faithful copy of the arcade game Space Invaders that runs on almost any PC graphics card. Its author later released the source code as well.

How to set it up

1. Install DOSBox Staging or another DOS emulator.
2. Unzip the download into a folder of its own.
3. Start DOSBox Staging and type mount c "<folder>\cloninv", where <folder> is where you unzipped the download, then c:.
4. Type CLONINV.EXE to start the game.