This is the source code of my Vectrex game, Unblockme (also known by many other names!). There is a binary file in this directory which can be put on a cartridge or used in an emulator. I've also designed a 3D-printable board-game version of Unblockme, which I might include in a boxed version at some point. The 3D-print has to be done in two steps - each file should be printed in a different colour of filament. No AMS or support material is required. The artwork and instructions to assemble a printed cardboard box can be found at: https://gtoal.com/vectrex/DIY-Vectrex-Cartridge-Box-Kit/ (The box artwork files with 'amped' in the filename use stronger than normal colours as they are for printing on silvered card which makes normal ink levels appear faded. Don't use those when printing on standard white cardboard) As well as the game and the box, I have also written a program to generate new puzzles (actually it can exhaustively generate *all* puzzles, although it does take a couple of hours to do so at the moment.) I'm planning to release an update to the binary this year, which will incorporate a much larger number of puzzles from the new set. Graham