Xerix

Xerix is a 256-colour space shooter: guide your ship through a strange world and destroy or avoid what gets in the way. It is freeware.

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>\xerix", where <folder> is where you unzipped the download, then c:.
4. Type XINSTALL.EXE, then XERIX.EXE to start the game.