ATOMFALL captain sims: Locations, Choices, and Loot

Where to Find Captain Sims in Wyndham

Finding ATOMFALL captain sims can turn a confusing visit to Wyndham into a clear investigation. He offers leads and a potential alliance with Protocol, but working for him means making choices that affect other people in the quarantine zone. This ATOMFALL captain sims guide explains where to look, what his requests involve, and what happens if you decide to kill him.

For an early encounter, check Wyndham’s Village Hall and the bandstand on the village green. Those are the two locations described in the supplied player video. The Fandom wiki adds context: Sims can deliver a speech at the bandstand before directing you to his headquarters inside the hall.

Village Hall or Bandstand?

The following locations are described as player experience in the video guide, with the initial speech sequence also documented by the Fandom wiki.

Location	Where to look	What the source describes
Village Hall	Near the desk on the stage	The player video identifies this as one place to find Sims
Village green	Around the bandstand	The player video describes him walking around this area
Bandstand during the initial encounter	At the speech gathering	The wiki describes Sims addressing villagers before inviting you to the hall

As player experience, the video suggests checking the Village Hall first when following the main path from the village entrance, because you reach it before the bandstand.

A good approach is to use both landmarks instead of searching every building. If you encounter Sims giving his speech, the wiki’s account points you toward the Village Hall for the follow-up conversation.

These accounts describe where he appears, but they do not establish a timed movement schedule. There is no need to assume that arriving at a particular hour will place him at his desk.

His later location can also change with story progress. If you are looking for him during the evacuation ending, check the ending section below before repeating your early-game search.

Who Captain Sims Is and Why His Trust Matters

Captain Grant Sims commands Protocol forces within the quarantine zone, according to the Fandom wiki. His headquarters are in Wyndham’s Village Hall, and he is a major character in the Protocol lead.

Image: YouTube / gameranx

That makes an ATOMFALL captain sims encounter useful for more than getting directions. Sims offers a route into the military’s investigation, including a prisoner at Skethermoor and a missing radio component.

The broader setup fits the game’s emphasis on investigation and consequences. The Atomfall Steam listing from developer and publisher Rebellion describes a survival-action mystery built around exploration, conversation, investigation, and combat.

Becoming an Informant

The wiki describes Sims proposing an exchange: help identify dissidents in Wyndham, and he will accept you as a Protocol ally. He recommends beginning with Iris Baxter.

According to that account, reporting Iris or another suspicious individual earns his approval and leads to a request involving Dr. Diane Garrow, who is detained at Skethermoor Prison.

The supplied video adds a caution from player experience: informing on villagers can earn Sims’s trust and help with access to certain areas, while risking your standing with other factions. It does not specify every affected relationship or access condition.

A good approach is to hear Sims’s proposal before deciding whether to act on it. Meeting him and reporting a villager are separate decisions; you can evaluate the information he offers before committing to his request.

Keep these considerations in mind:

• His approval is tied to helping Protocol, according to the wiki.
• Reporting someone has consequences beyond receiving another lead, as described in the player video.
• His offer of assistance eventually connects to his own escape plan.

Sims gives you direction, but his priorities deserve the same scrutiny as anyone else’s in the quarantine zone.

ATOMFALL captain sims: Following the Protocol Lead

Image: YouTube / Rebellion

Story spoilers begin here. The sequence below follows the Fandom wiki’s account of Sims’s storyline, including his requests and the information behind his escape proposal.

His lead connects Wyndham, Skethermoor Prison, Casterfall Woods, and the Interchange. Understanding that sequence helps distinguish an unfinished request from a later development.

Stage	Sims’s request or development	Detail from the wiki
Wyndham investigation	Identify dissidents in the village	Sims suggests Iris Baxter as a starting point
Skethermoor Prison	Assist with interrogating Dr. Diane Garrow	Garrow is a detained former Windscale scientist
Return from Skethermoor	Discuss what happened at the prison	His reaction depends on whether you helped Garrow
Missing radio component	Retrieve the component from the Speaking Cave	Sims believes a Druid took it to Casterfall Woods
Escape proposal	Enter the Interchange and destroy Oberon	Sims says this will remove interference and allow evacuation

The Garrow Decision

The wiki describes two different reactions when you return from Skethermoor.

If you remained loyal to Sims, he responds favorably. If you helped Garrow escape, he questions whether your alliance was merely a way to gain access to the camp.

The same account says suitable dialogue choices can convince him that you were uninvolved in Garrow’s escape. It does not provide the exact responses, so there is no supported dialogue script to repeat here.

A good approach is to treat this conversation as a consequence of your prison decision. Helping Garrow is not described as an automatic end to every interaction with Sims, but it does create a confrontation.

The Speaking Cave and Radio Component

After the prison events, Sims explains that someone infiltrated his headquarters and stole an essential radio component. He suspects it was taken to the Speaking Cave in Casterfall Woods.

According to the wiki, questioning the purpose of the retrieval prompts him to explain that the radio is necessary for his proposed escape.

The account also places an audio log beside the component. Listening to it reveals Operation Atomfall, a contingency involving nuclear strikes against the quarantine zone if containment is breached.

A good approach is to examine the recording before returning. It supplies context for the conversation in which you can confront Sims about the operation.

What Sims Wants From Oberon

When challenged, Sims confirms the operation and presents it as a measure to contain the disaster. His escape plan requires destroying Oberon.

The wiki describes his reasoning: removing Oberon should eliminate the interference field, allowing Protocol to evacuate by air before Operation Atomfall proceeds.

This is a major story commitment. The request links your escape to both Oberon’s destruction and Sims’s account of what should happen afterward.

Should You Kill ATOMFALL captain sims?

You can kill Sims, according to player experience in the supplied video. The immediate consequence described there is an attack from nearby soldiers.

Image: YouTube / Rebellion

That matters when evaluating an ATOMFALL captain sims kill decision: the available loot comes with an immediate combat risk. This is not described as a quiet way to take a key and walk away.

The video’s account separates items found on Sims’s body from items inside his documents chest.

Loot source	Items described in the player video	Distinction
Sims’s body	Pistol and ammunition	These are body loot
Sims’s body	Key to his documents chest	The key is separate from the chest’s contents
Sims’s body	Letter from his daughter	A personal document found on him
Documents chest	SMG and documents	The SMG is described as chest loot

All loot details in this table are player experience, rather than an official inventory list.

Weighing the Immediate Tradeoff

A good approach is to consider your supplies before starting the fight. The official Steam description emphasizes scarce weapons and ammunition, while the video describes nearby soldiers retaliating when Sims dies.

The same player account makes the chest sound rewarding, but it does not establish that killing him is the only way to obtain its contents. Avoid treating a demonstrated method as proof that every alternative is impossible.

Keeping him alive also preserves the opportunity to hear and pursue the requests described in the wiki. If your goal is to explore his storyline, killing him before those conversations works against that goal.

There is a clear distinction between choosing to attack him in Wyndham and encountering him as an enemy during a later story branch. The latter is tied to your decision involving Oberon, rather than simply wanting his equipment.

Captain Sims’s Ending Locations and Oberon Choices

Late-game location questions need a different answer from an early ATOMFALL captain sims search. The Fandom wiki describes him leaving Wyndham for an evacuation, or appearing at Windscale as an enemy, depending on the Oberon outcome.

This section contains ending spoilers.

Story situation	Location described by the wiki	What happens
After destroying Oberon, when seeking Sims’s escape route	Village Hall in Wyndham	A note says he has gone to Skethermoor Base
Following that evacuation note	Skethermoor Base, beside a helicopter	Sims thanks you and invites you aboard
After applying the Growth Stimulant to Oberon	Windscale Plant	Sims arrives with Protocol soldiers and is hostile

Following the Helicopter Escape

The wiki describes destroying Oberon as causing the interference field to disappear. You can then return to Wyndham to seek Sims as an escape route.

At his Village Hall headquarters, you find a note directing you to Skethermoor Base, where he is overseeing the evacuation.

The account places him beside a helicopter. Speaking with him leads to his invitation to board and leave the quarantine zone.

A good approach is to check his headquarters for that note before assuming he has vanished. At this stage, the hall provides a destination rather than another conversation at his desk.

Applying the Growth Stimulant

The wiki describes a hostile outcome if you apply the Growth Stimulant to Oberon. Sims and accompanying Protocol soldiers enter the Windscale Plant and attack.

In that account, he cannot be talked down, and the player must fight him and his soldiers.

For an ATOMFALL captain sims playthrough centered on his evacuation proposal, the Oberon decision is therefore critical. His plan asks for destruction; the Growth Stimulant branch produces the hostile encounter described above.

FAQ

Where is ATOMFALL captain sims located?

Early on, check Wyndham’s Village Hall near the desk on the stage and the village green around the bandstand. Those locations come from player experience in the supplied video. The wiki also describes an initial bandstand speech followed by a meeting at the hall.

What do you get for killing Captain Sims?

The player video describes a pistol, ammunition, a documents chest key, and a letter from his daughter on his body. His documents chest contains an SMG and documents. Nearby soldiers attack when he is killed, according to that player experience.

Can you still speak to Sims after helping Dr. Garrow?

According to the Fandom wiki, Sims confronts you after you help Garrow escape. Suitable dialogue choices can convince him you were uninvolved. The supplied account does not identify the exact responses.

Where does Captain Sims go for the evacuation ending?

The wiki places him at Skethermoor Base beside a helicopter after Oberon is destroyed. His Village Hall headquarters contain a note explaining the move. Follow that lead to find him during the evacuation sequence.