Flathill portal world: resource route, three Power Cells, and Marion

Key facts about Flathill

• Location type: A portal world set in Flathill, South Dakota, Earth; GATE's experiment there opened a connection to Anteverse 1. Access is through Office Sector Silo 3.
• GATE's original use: Codename "Perforation Site Zero": early portal experiments disguised as a corn syrup factory
• Exit buff: Fog Brain is positive: 25% slower stamina drain for 10 minutes after using the portal at the end.
• Living NPC: Marion, initially in Rewind Rentals; after Manufacturing West opens, he can appear later as a traveling trader.
• Reset schedule: Shared with all portal worlds: resources reset twice weekly (Tuesday/Wednesday midnight and Saturday/Sunday midnight)

Enemies: movement beats combat

Composers: Large alien creatures that are deaf. They cannot hear the player moving, but can spot you, chase, and reach through doorways. Break line of sight and use standard-sized doors or vents as cover; do not stop at the doorway opening. The current Composer combat reference lists the Rocket Launcher and REDACTION Grenade as its only practical kill options. Ordinary electrical or early melee gear is not a Composer solution.

Symphonists: Their Flathill spawns are documented after the player opens the door to Manufacturing West, not as a guaranteed threat on the initial cell run. They are blind and react to sound; electricity does not affect them. On later trips, avoid or prepare for them separately, and remember that a powered Symphonist Scarecrow can repel them.

Priority rule: If you can run past it, run past it. Your goal is resources, not combat XP.

Resource locations

Early priority: On a short supply run, choose the Bounty Basket loot you actually need and use the exit portal near the start to deposit it. On a full first clear, treat the three suppression equipment boxes and a safe return as the main task. The school is an optional, hazardous detour; the Wiki describes both later mobility access and a difficult first-visit barricade-and-shelf climb, not a requirement for the cell route.

Marion

Marion is the only living human still in Flathill when the player first visits. He is in Rewind Rentals and provides:

• A direct objective clue: remove the three Power Cells from the suppression devices to reopen the way out.
• Context about GATE's portal suppression and the Composers.
• Later trading after Manufacturing West opens; do not plan on first-visit purchases.

Talk to him during the first clear if the cell objective is unclear. His later trader role is a different encounter, not a reason to postpone the initial conversation.

Power Cell farming loop

Flathill has three Power Cells plugged into suppression equipment boxes. Marion's dialogue makes their first removal the progression objective, and the Flathill page says they return on portal-world resets. Unlock the associated shortcuts as you collect them; subsequent visits can be shorter. The cells emit radiation while carried, so put on a Hazardous Materials Suit after taking the first cell or use another documented protection plan such as Iodine Tablets. Store cells in a Hazard Crate after returning to base. The Flathill Power Cell Loop guide covers a repeat-visit route rather than replacing this first-clear safety plan.

First-run route order

The safest first Flathill visit is a movement route, not a Composer fight. Separate the quick supply option from the full story objective:

1. Enter and note the return portal near the starting area; deposit valuable early loot there if inventory pressure grows.
2. If this is only a supply visit, take a named Bounty Basket item and return without committing to the full suppression route.
3. For a first clear, speak with Marion in Rewind Rentals and follow the objective to remove all three Power Cells from their equipment boxes.
4. Avoid Composers by controlling sight lines and using cover. Put on radiation protection once you carry a cell; use the shortcuts opened during the route.
5. Leave through the end portal after the suppression objective rather than extending the trip into optional school or collectible hazards.

Once those are known, later runs can specialize. A first visit that stops after Bounty Basket is a supply run, not a completed Flathill progression route.

Composer-Safe Street Rules

Flathill punishes players who treat every enemy sighting as a fight. The safer first-run approach is to keep line of sight and route shape under control.

The goal is not to prove the town can be cleared. The goal is to turn Flathill into a predictable repeat stop.

First visit checklist

Before entering Flathill:

1. Rest and carry water; bring a Hazardous Materials Suit or another documented radiation plan before taking a Power Cell
2. Know that Composers are deaf: plan to run past rather than fight
3. Decide whether Bounty Basket is your supply objective or whether all three cells are the main objective
4. Note the Fog Brain exit buff; it lowers stamina drain temporarily, rather than harming the player

Flathill vs. other portal worlds: when to prioritize it

Flathill is a strong early-to-midgame portal destination because it provides food and Power Cells. Keep the objectives distinct: a Bounty Basket supply visit can end early, while the full first clear requires removing all three cells. As you progress and other portals become available, Flathill becomes a scheduled material stop rather than a universal farming destination.

Marion's role and when to talk to her

Marion is the only living human present on the first Flathill visit. He is in Rewind Rentals. His initial dialogue explains that the suppression devices block the way and directs you to remove three cells; the Flathill area page supplies the corn-syrup-factory cover story. Distinguish those sources rather than attributing every piece of location history to Marion's dialogue.

Make his initial clue part of the first clear if you are pursuing progression. After Manufacturing West opens, he can travel as a trader near original Cacophonous Crates or powered Symphonist Scarecrows; do not assume he remains at the video store forever or offers trades immediately.

What to bring on a Flathill run

A standard Flathill run favors movement and carrying capacity over fighting Composers. A return trip after Manufacturing West opens also needs a separate Symphonist avoidance plan. Gear priority depends on whether you are gathering food, carrying radioactive Power Cells, or returning for a collectible.

Recommended loadout:

• Enough inventory space for the named cells or Bounty Basket items: don't fill your pack before reaching the primary target
• Radiation protection and water for a cell run; Power Cells emit radiation even though Flathill itself has no ambient radiation
• One recovery item and an avoidance route if returning after Symphonists can spawn
• A light source if your character's visibility range is a concern in the fog environment
• Water: Flathill does not have the Antejuice sources that Mycofields has; carry your own

The fog environment in Flathill reduces visibility range. This affects how close a Composer can get before you see it. Slow down near blind corners, then move decisively between known cover; deafness does not make a Composer unable to see a player crossing an open street.

Run types after the first visit

Flathill stays useful because it can be repeated. Keep each visit focused and the fog becomes a routing problem instead of a constant supply drain.

After-Run Sorting Checklist

Sort Flathill loot immediately after returning so the next portal reset has a clear purpose.

This matters because Flathill can look like a general-purpose loot town. Treat it as separate repeat routes and it stays efficient.

See also

• Flathill Power Cell Loop
• Portal World Reset Strategy
• Symphonist Boss Fight