Quick Answer

If Saga constantly runs out of room for ammo, heals, and utility items, inventory upgrades are worth treating as part of the main survival route, not just post-story cleanup. Public route coverage consistently ties Saga’s bag expansions to Cult Stashes, and the Alan Wake Wiki pages for Cult Stashes and Watery Lighthouse note two stable facts: there are 22 Cult Stashes in the main game, and opening all of them ultimately leads to the Watery Lighthouse Key, with the lighthouse containing an Inventory Upgrade. The efficient route is therefore not blind 22-stash cleanup on first sight. It is taking the upgrades that immediately reduce inventory pressure, then finishing the full stash chain later.

Quick Steps

  1. As soon as slot pressure starts forcing bad item drops, treat Cult Stashes as a survival route, not just a collectible task.
  2. Take the easiest early inventory upgrade detours first instead of breaking the main route for far-off cleanup.
  3. Add midgame upgrades once Watery and Bright Falls revisits open more naturally.
  4. Treat all 22 Cult Stashes -> Watery Lighthouse Key as a later cleanup milestone.
  5. During full cleanup, combine the lighthouse visit with the final inventory reward and supply sweep.

Priority Table

PhaseBetter approachWhy it works
First real inventory crunchPrioritize the easiest on-route upgradeIt reduces dropped healing, ammo, and pointless storage trips right away
Midgame revisit phaseAdd the next inventory upgrades when areas reopen naturallyThe detour cost is lower by then
Late cleanupTie the full 22-stash route to the lighthouse rewardThe final reward and supply value fit best into a cleanup pass

When an upgrade detour is worth it

SymptomBetter call
You are constantly choosing between heals and utility itemsUpgrade detours are high priority
Space is only tight occasionallyKeep pushing story and open the best stash only when it is already on-route
You are already in a revisit-heavy phaseFold Cult Stashes and the lighthouse into one cleanup plan

Key Timestamps

  • 00:00: confirm the video is focused on Saga inventory upgrades, not mixed character progression.
  • Around 00:39: a good point for checking the first high-value early upgrade.
  • After 01:40: better for mid-to-late cleanup and the lighthouse endgame portion.

Before You Try It

  • The 22-stash chain is what drives the lighthouse reward, so do not force full-map cleanup the first time you see a stash marker.
  • If the current wall is actually the Coffee World main path, solve that first with the Screwdriver and trailer key route.
  • The point of this route is reducing survival-management friction, not just making icons disappear.

FAQ

Should inventory upgrades wait until late game?

No. If bad slot pressure is already making you throw away useful resources, inventory upgrades become an early-to-midgame quality-of-life priority.

Why does everyone keep mentioning 22 Cult Stashes?

Because the main game has 22 total, and opening them all leads to the Watery Lighthouse Key. That turns full stash cleanup into a natural late-game reward route.

Should I clear all 22 stashes right now?

Usually no. Grab the upgrades that solve current slot pressure first, then finish the lighthouse and full collectible route when revisits are cleaner.