This always happens, you spend a few days away with loved ones, and out comes a new homebrew game that I'm a few days late for. So here is Paul Jenkinson's latest ZX Spectrum game 'Code Zero' developed using Arcade Game Designer, which puts you in the boots of a lone agent sent to shut down the main computers of a single test station, that is about to implode due to a dangerous isotope. You're the only agent suitable for the job, all the personal are dead or in hospital and only you can circumvent the cyber protection before everyone is wiped out.