|Born:|| November 25, 2074|
|:||May 11, 2104|
|Career:|| Theta Payload Technician|
|Voice actor:|| Andrea Deck|
Sarah Lindwall was originally a payload technician who worked and lived at Theta. She later decides to join the ARK team along with Ian Pedersen, Catherine Chun, Jasper Hill and Nicolai Ivashkin. The team travels from Theta all the way to Phi, arriving on December 27, 2103, in order to launch the ARK into space using the Omega Space Gun.
After the ARK team’s decision to postpone the ARK's launching, they returned to Tau in order to figure out their next steps.
Simon can hear recordings by mining black boxes of ARK team members and by listening to data buffers. Sarah and the rest of the ARK team can be heard several times as they make their journey from Omicron to Tau in order to launch the ARK. Inside Tau, Simon can mine the black boxes of Ian and Jasper. In these recordings, Sarah can be heard comforting her friends as they slowly starve to death. The team seems full of regret that they were not able to launch the ARK into space and beg Sarah to go through with the launch.
Despite her friend's wishes, Simon finds Sarah alone in Tau's infirmary above the living quarters, barely alive on a life support system, guarding the ARK. She allows Simon to take the ARK with some convincing. She is devastated to find out that she's the only living person left on Earth and that Simon has witnessed the destruction across Pathos II. She requests that Simon disconnect her life support and kill her. Simon can choose whether or not to end her life before proceeding. If Simon chooses not to kill her, she will beg for her death as he walks away.
If Simon chooses to disable her life support, she asks him to stay with her in her final moments. She will talk about her life in Greenland before the comet and about her life on PATHOS-II. She mentions that she had a great affinity for her work and co-workers. She also begs Simon to send the ARK into space so that humanity can live among the stars before she finally dies.
- When Sarah talks about her colleagues on PATHOS-II, the four people she mentions are the four other members of the crew carrying the ARK to Phi, being Ian Pedersen, Nicolai Ivashkin, Jasper Hill, Catherine Chun. It's likely that the crew were good friends with each other, with Sarah even affectionately calling Nicolai "Nick", being one of the reasons as to why they were the ones to join Catherine.
- If Sarah's life support is disconnected, she will jokingly say she doesn't have to worry about turning 30. She would be only a few months short of her 30th birthday in May of 2104 when Simon enters Tau.
- Of all the ARK team members, she is the only one with no confirmed scan date for Catherine's ARK project.
- If Simon tries to access Sarah's black box after her death, he will be unable to mine it. Simon speculates that she must have found some way to turn it off, although how she would have done so is unknown.