Just as you think you've made it through a tense episode of Directive 8020, you hit a puzzle that requires a key code to progress. Whether you've decided to send a distress signal or a warning to Earth in episode 7, you'll still need to find the serial number for the probe. It's not exactly hidden in plain view either...
Read more.
How to find the Serial Number for the Probe in Directive 8020
Source: PC Gamer (opens in a new tab)