playing Sidequest Nemesis solo

About Side Quest: Nemesis, from BoardGameGeek:

Captain Jessica Kowalski's crew has been offered another offer from the Corporation. Apparently, a ship carrying a precious load vanished a few weeks ago. The mission was simple: locate the ship, assess the situation and make sure the cargo reaches Earth. However, the last log entry was rather unsettling. She recorded: the AI of the ship detected alien lifeforms, labelled Intruders, aboard. Silence is scarier than usual… Side Quest: Nemesis is a game of puzzles and enigmas by the designers of the Escape Tales series, but now in the Nemesis universe. SideQuest: Nemesis offers captivating puzzles, an interesting scenario and difficult choices to make while under pressure. The game will test your creativity, your perception, your open-mindedness. Be aware the silence aboard is not a good sign and intruders are hiding in the darkness. Complete your mission and avoid being contaminated at all costs!