Reverse: 1999 4.0 "Gatekeeper" Progression Order and Somnambulism Clears | GameHub

Applicable version: 4.0.0 "Gatekeeper" (site-listed update date 2026.09.24; exact values subject to the official announcement)

Reverse: 1999 4.0 overview: what the Gatekeeper patch covers

The official site lists version 4.0.0 with an update date of 2026.09.24 under the "Gatekeeper" theme. A cruiseship celebration event runs alongside it.

What changes inside the patch

4.0 is a thematic version, which means the main story, new characters and events all move at once . The shared trait of large versions is concentrated resource cost: story progression needs runs and characters need materials, and the two compete for the same pool.

Push the story to the current node first

Story progression pays guaranteed returns by unlocking systems and stages, while character investment pays gated or probabilistic returns. reverse 1999 best teams lists change every patch; your story progress never rolls back.

Reverse: 1999 progression: splitting Insight II from Insight III

Run the order as Insight II, Insight III, Psychube, Resonance, then Portray. Insight tiers set base stats and unlock skills, Psychubes set the damage structure, and Resonance plus Portray act as late-stage reinforcement.

Why Insight II comes first

Insight II is where most characters unlock their function, and without it neither Psychubes nor Resonance pay off. Going straight for Insight III is slower because its material gate is high, and the stall costs more than finishing a Psychube would .

Psychube before Resonance

Reinforcement rolls are where plans usually leak. A character parked at Insight II with a finished Psychube clears weekly content, while the same character at Insight III with an empty Psychube does not. The material gate makes that trade obvious in hindsight and easy to get wrong in the moment.

Psychubes beat Resonance on priority because they change the damage structure multiplicatively while Resonance is closer to a linear top-up. With limited materials, build the structure first and the numbers second.

Reverse: 1999 weekly Somnambulism: tiers and mistakes

Artificial Somnambulism refreshes weekly and counts as rotating endgame content. Each week, clear the tiers you can hold at full stars before pushing higher.

Routing the tiers

Weekly resets also mean the roster that worked last week may not fit this one. Checking the mechanic before spending runs avoids the situation where a team gets rebuilt three times for a single tier.

Read the current enemy attributes and mechanics before picking a squad. Clearing tiers is less about total investment and more about concentrating resources on the tier you can finish in one attempt instead of restarting the same floor.

Common mistakes

1. Running one element through every tier, then stalling on the resistant one.
2. Entering a high tier with an unfinished Psychube and blaming luck.
3. Starting the hardest tier on day one of the week, before materials and slots are ready.
4. Copying last week's formation without reading the current mechanics.

Reverse: 1999 resource plan: materials and pulls

Vent materials in the order Insight, Psychube, Resonance, Portray, because unlocking structure before numbers is what prevents dead weeks.

Priority	Item	Reason
High	Insight II materials	Functional unlock with a guaranteed return
High	Psychube materials	Structural damage gain
Medium	Resonance materials	Linear reinforcement
Low	Portray materials	Only for characters you are keeping long term

How to decide on pulls

Check the pity counter first, then the roster gap, and treat the published rates and pity as the authority. Counter position matters because expected value climbs sharply as you approach a guarantee.

Where extra stamina should go

Once the weekly tier is banked, spare runs belong to material stages and to whichever event is closing soonest. Banking event currency late is the single most common way to lose a week of rewards without noticing, because currency rarely converts after the event window closes.

Reverse: 1999 event closeout rhythm

Events and the main story run in parallel during 4.0, and the closeout phase is where materials and runs get mismatched.

Take guaranteed rewards first

Event currency is the usual casualty here. It rarely converts after the window closes, so a week can end with a stockpile that buys nothing once the shop it belonged to is gone.

Clear check-ins and quest chains before touching probability-based modes. That rule holds in every version, because guaranteed rewards cannot be missed while probabilistic ones can.

What to do at the end of a version

One cheap habit: log the exact materials the current story node needs before the patch drops, so the first post-update session goes straight at the right stage instead of scouting for it.

Late in a version, send runs to closing material gaps rather than pre-farming for a new character. Pre-farming needs the material list from after the update goes live, and guessing early means farming the wrong stage.

Reverse: 1999 FAQ

Is 4.0 live right now?

A: The official site lists version 4.0.0 with an update date of 2026.09.24, and the "Gatekeeper" theme is open.

Insight or Psychube first?

A: Insight II first. It unlocks the character's function, and without it Psychubes and Resonance underperform.

Do I have to redo weekly content every week?

A: It refreshes weekly. Clear the tiers you can full-star, then push higher without restarting the same floor.

Reverse: 1999 action checklist and sources

1. Push the main story to the current node for guaranteed unlocks.
2. Sequence characters as Insight II, Insight III, Psychube, Resonance.
3. After each weekly refresh, bank the tiers you can full-star.
4. Vent materials in the order Insight, Psychube, Resonance.
5. More 4.0 breakdowns sit in the gghubs.com guides section.