this Arknights guide answers one question only, the order of three limited-time lines. Clear "Pseudo-Ecology" first by October 20, finish Yesterday's Sea stage two before October 23, and top up the library collab sign-in and shop before October 30. It also covers the two things Arknights beginner guide 2026 readers ask most, sanity priority and the 150-pull safety net, with every number tied to an official announcement.
Arknights Vector Breakthrough #3 "Pseudo-Ecology": Why It Goes First
"Pseudo-Ecology" is the third Vector Breakthrough event. Its stage window runs from September 29 at 16:00 to October 20 at 03:59, and it unlocks after clearing main story 2-10. It goes first not because it has the best rewards but because it closes first, with three days left at the time of writing.
Stage window and unlock condition
Vector Breakthrough is a stage-only event: you fight the event stages and collect rewards directly from them . Main story 2-10 is a hard gate, so if you have not cleared it yet, pushing the main story is worth more than the event itself, because the event will not wait.
How to spend three days
Spend the first two days clearing stages for first-clear and mission rewards, and use the last day for cleanup. Stage rewards are earn-as-you-go with no shop buffer, which is exactly why this line cannot slip.
Watch out
Watch out: after the stages close at October 20 03:59, you can no longer challenge the event stages, and unfinished mission progress is not carried over .
Arknights Yesterday's Sea Stage Two: What to Do in the 7-Day Window
The Yesterday's Sea event stages run from October 09 at 12:00 to October 30 at 03:59 and unlock after clearing main story 1-10 . Stage two opened on October 16 at 16:00 alongside the 16:00 to 16:10 emergency maintenance window , which leaves roughly seven playable days, a full week shorter than the shop window.
Splitting stages from mission progress
Spend the first three days on stage first-clears and mission objectives so the one-time rewards are banked, then farm the repeatable event currency later. The currency can sit in the shop, so it does not expire with the stages.
What to buy first in the event shop
The shop trades event currency for things like operator tokens, furniture, headhunting permits, outfits, module materials and Lungmen Dollars. Tokens and permits go first because tokens do not come back and permits discount future pulls; outfits and furniture can wait.
Watch out
Watch out: the event currency expires when the shop closes on October 30 at 03:59 and is not converted into anything else .
Arknights "Hengyuan Jinliang" Library Collab: Sign In 3 Days for Furniture
The Arknights x National Library of China event "Hengyuan Jinliang" runs from October 16 at 16:00 to October 30 at 03:59, and signing in on a cumulative 3 days during the window grants furniture including the "Fluffy Reading Companion" . This is the line people forget, because it asks for nothing except logging in.
Cumulative, not consecutive
The requirement is cumulative sign-in across 3 days, so you do not need to log in daily, but you do need to hit 3 days inside the window. With 13 days left, the only real risk is forgetting.
Why it still goes on the calendar
Furniture is a permanent account asset and does not disappear when the event ends, but the entry point does close. Putting it on a fixed date is cheaper than hoping you remember.
Watch out
Watch out: the sign-in entry closes together with the event at October 30 03:59, so a partially completed count cannot be finished later .
Arknights Sanity and Pull Budget: How the Three Lines Conflict
All three lines consume sanity, and you only have one pool of it. Ordered by closing time, sanity priority is Pseudo-Ecology first, Yesterday's Sea second, then routine farming .
| Priority | What to do | Time left | Reason |
|---|---|---|---|
| 1 | Vector Breakthrough #3 stages | 3 days | Closes first, no shop buffer |
| 2 | Yesterday's Sea stages and missions | 6 days | Currency supply stops when stages end |
| 3 | Hengyuan Jinliang sign-in | 13 days | Cumulative, forgiving |
| 4 | Routine E2 and module farming | none | Permanent content |
How far are you from the 150-pull safety net?
The "Sea Abyss Cruise" rate-up banner window runs from October 09 12:00 to October 23 03:59, and after 150 consecutive pulls without the featured 6-star, your next 6-star is guaranteed to be the featured one . That threshold does not trigger early, so the only number worth computing is how many pulls you are short of 150.
Why the shop comes before the banner
Spending event currency on tokens costs you nothing you cannot farm, while pulls consume a limited permit pool. Doing the shop first is the cheaper order, which is the reasoning this Arknights guide applies throughout. More event checklists and databank-style breakdowns live in the GameHub mobile game guides hub.
Arknights Execution Calendar, October 17 to October 30
Laid out day by day, the plan is one action per day, so you never have to hold three deadlines in your head.
| Date | Action | Deadline |
|---|---|---|
| October 17 to 19 | Clear all Pseudo-Ecology stages and missions | October 20 03:59 |
| Any 3 days from October 18 | Log in for the library collab sign-in | October 30 03:59 |
| October 20 to 22 | Push Yesterday's Sea stage two and missions | October 23 03:59 |
| October 23 to 29 | Spend remaining currency in the shop | October 30 03:59 |
| Anytime | Routine sanity on E2 and modules | Permanent |
One deadline per day
The table works because each day you only track the nearest closing time, which stops the three lines from competing for attention.
Arknights FAQ
Which event should I clear first with only a few days left?
A: Pseudo-Ecology. It closes October 20 at 03:59, three days earlier than Yesterday's Sea on October 23 at 03:59, and it has no shop stage, so there is no fallback .
Can I still finish the library collab sign-in if I skip days?
A: Yes. The requirement is a cumulative 3 days within a window that runs from October 16 16:00 to October 30 03:59, about 13 days .
How is the 150-pull safety net counted?
A: After 150 consecutive pulls without the featured 6-star, the next 6-star is guaranteed to be that featured operator. Count how many pulls you still need before spending .
Can I postpone the Yesterday's Sea shop to October 30?
A: You can, but the currency only drops from stages and missions. Once the stages close on October 23 at 03:59 the supply stops, so the extra week only helps you spend what you already have .
What if I have not reached main story 2-10?
A: You cannot enter Pseudo-Ecology directly. Push the main story first, then come back; the event stays open until October 20 at 03:59 .
Action Checklist
- Open Pseudo-Ecology today and push first-clear plus mission progress to 100 percent before October 20 03:59.
- Log in on any 3 days starting October 18 for the Hengyuan Jinliang furniture.
- Spend October 20 to 22 clearing Yesterday's Sea stage two and its mission line.
- Before October 23, move every point of currency into the shop, then buy tokens and permits first.
- If you want the Sea Abyss Cruise banner, count your permits against the 150-pull threshold before pulling.
- After the three lines close, send sanity back into routine E2 and module farming.
Game Guides
- Palworld 1.0.5 Tech Unlock Order: Aquatic Construction Kit, Jetragon and the Material Route
Pal Tamer, version 1.0.5 shipped only two fixes, but read alongside the 1.0.3 and 1.0.4 balance passes, the late-game tech order looks nothing like it did at the 1.0 launch. The Aquatic Construction Kit dropped from tech level 66 to 23 and its Ancient Technology Point cost fell from 4 to 1, while the Jetragon-related tech dropped from level 79 to 70. This guide orders the line as unlock, then speed up, then save materials.
- Reverse: 1999 4.0 Welfare Order Guide: Free 6-Star, 40 Pulls and the New Systems
Timekeeper, the 4.0 celebration hands out so much that things get missed: a login free-guaranteed-new 6-star, a login selectable 6-star Reverie character, a login-limited Tooth Fairy outfit, a celebration Jukebox, plus a cumulative sign-in worth 40 pulls . The official CN site lists the current version as 4.0.0 with an update date of 2026.09.24 . This guide orders the work as claim the expiring items, build the characters, then touch cosmetics.
- Love and Deepspace 6.0 Home System Guide: Cooking, Handicraft and a Daily Route
Hunter, version 6.0 turned the home system into half a progression system. A new Room is open, Cooking and Handicraft are live, and the home features together pay out more than 6,000 Diamonds. Version 6.0 released on 2026-07-08. This route orders a day in the home from "make it work" to "make it useful" to "make it pay."
- Honkai: Star Rail 4.6 Claim Deadlines: Everything to Grab Before the Currency Wars Reset
Trailblazer, the real deadline in Honkai: Star Rail 4.6 is not a banner, it is November 11 at 06:00. When version 4.6 ends, "Currency Wars: Zero-Sum Game" wipes a set of rewards and progress, and whatever you have not claimed becomes unclaimable . This guide separates what resets, what survives, and what expires before the end of October.
- Genshin Impact 7.1 Banner Deadlines: Three Dates Before You Pull for Skirk or Escoffier
Traveler, three clocks are running in the second half of Genshin Impact 7.1 "A Rekviem for the Underworld": the web event Sixth Anniversary Album closes October 18 at 23:59 and pays 180 Primogems, the "Wager of Foresight" event's match phase ends October 20 at 09:59, and the double-Cryo character banners and the weapon banner close November 03 at 14:59. This guide orders them by closing time before you decide anything about pulling.
- Wuthering Waves 3.7.2 Progression Plan: What to Farm After the Mirror Lock Banner
Rover, two facts are confirmed as of today. The Chinese client moved to 3.7.2 on 2026-10-16 with a single line of patch notes, "fixed known crash issues on some iOS devices" , while the global client sits at 3.7.1 dated 2026-10-09 . The 3.7 version itself launched on September 30 with two new characters and the Dream Pivot . This Wuthering Waves guide lays out the progression order for the second half of the patch.
- Zenless Zone Zero 3.3 Prep Guide: Finish 3.2, Then Plan Around Fione and Severian
Proxy, October 21 is the dividing line in New Eridu: version 3.3 "Journey Back to the Sky" launches that day with new S-Rank Agents Fione and Severian. Your client is still 3.2.0. This guide splits the work into a 3.2 wrap-up list and a 3.3 stockpile list, sorted by how much time is left.
- Palworld 1.0.5 Breeding and Mutation Guide: Passive Filtering and Base Work Split
Palworld is currently on v1.0.5 (2026-09-15, source: Palworld official notice "v1.0.5: Bug fixes"). Breeding gained a new route after 1.0: besides the usual passive inheritance, the 1.0 release added a Mutation mechanic, where breeding can produce a stronger Pal at a low probability. The efficient approach is therefore to strip your parent Pals' passives clean first, then breed for volume and treat Mutation as a bonus.