Gates & progression

Areas unlocked	Sector	World flag
1	The Office Sector	Office_NewGameStarted
2	The Office Sector	Office_InformationFound
4	The Office Sector	Office_ThirdFloorReached
5	The Office Sector	Office_Silo3Opened
5	The Office Sector	Fog_Completed
6	Manufacturing West	MF_ManufacturingOpen
6	Manufacturing West	MF_MetBlacksmith
7	Manufacturing West	MFMines_Entered
8	Manufacturing West	MF_MetFrake
9	Manufacturing West	MF_OpenTrainStation
9	Manufacturing West	MF_PumpsFixed
10	Cascade Laboratories	MF_ExitOpened
11	Cascade Laboratories	Labs_MiddleProgression
12	Cascade Laboratories	Labs_Containment_Entered
13	Cascade Laboratories	Labs_Helmholtz_Opened
14	Cascade Laboratories	LABS_TurretsDeactivated
15	Cascade Laboratories	LABS_AnteverseBFixed
16	Security Sector	LABS_OpenVacuumDoor
17	Security Sector	Security_SurfaceElevatorEvent
18	Hydroplant	Security_ExitOpened
18	Hydroplant	Dams_ReachedCentral
19	Hydroplant	Voussoir_Entered
20	Hydroplant	Dams_SpillwayOpen
21	The Reactors	Plant_EnteredPlant
22	The Reactors	Plant_AnteC_Entered
23	The Reactors	Plant_ExitOpened
24	The Reactors	Reactors_FirstContact
25	The Reactors	Reactors_S1Labs_Complete
28	The Reactors	Reactors_SG_Opened
29	The Praetorium	Reactors_SG_End
30	Residence Sector	V_INQ_SunDiskTouched
31	Residence Sector	Res_Objective1_Complete
32	Residence Sector	Residence_IceWallRemoved
33	Residence Sector	Res_EnteredBotanicals
34	Residence Sector	Residence_Wall
35	Residence Sector	Residence_Fracture_Complete
35	Main Story Complete	EndBossDefeated

Composite unlocks — all of them the game defines

These are the gates that need several things done first. There are only nine.

Grants	Requires all of
MF_PumpsFixed	MF_RedPumpFixedMF_TealPumpFixedMF_YellowPumpFixed
Dams_AllPumpsActivated	Dams_ActivatedPump1Dams_ActivatedPump2Dams_ActivatedPump3Dams_ActivatedPump4
Labs_XRay_FixitAll	Labs_XRay_Fixit1Labs_XRay_Fixit2Labs_XRay_Fixit3Labs_XRay_Fixit4
Reactors_AllStations_Complete	Reactors_S1Labs_CompleteReactors_S2War_CompleteReactors_S3Overgrowth_CompleteReactors_S4RadWaste_Complete
Res_Objective1_Complete	Res_Objective1_ARes_Objective1_BRes_Objective1_C
Fracture_Forcefield_Complete	Fracture_Forcefield_AFracture_Forcefield_B
Fracture_DL_AllEyes_Destroyed	Fracture_DL_Chieftain_Eye_DestroyedFracture_DL_Heavy_Eye_DestroyedFracture_DL_Witch_Eye_Destroyed
End_MainStoryComplete	End_PostBoss_MetCahn_IslandEnd_PostBoss_MetJanet_IslandEnd_PostBoss_MetWitch_IslandEnd_PostBoss_MetRiggs_Island
NewLeaf_AllPipesFixed	NewLeaf_BluePipeFixedNewLeaf_OrangePipeFixed

The honest limit of this page. Nine composite triggers is everything the game stores as data. The rest of the gating — reactor button orders, keypad codes, lever sequences — is compiled Blueprint logic, and we do not have it. Anywhere you were expecting a reactor sequence, we would have had to invent one, so there is none. A wrong sequence strands a group mid-session, which is worse than an absent one.