Some lock screens in game still name an older stage. Fast Rewards says 3‑36 but opens after 1‑12. These are the stages the game actually checks. Where a feature opens in parts, like the Peaks of Time, the later stages are listed under it.
Where are you?
Every unlock
Fight of FatesStage 1-1
Gear EnhancementStage 1-1
Fast RewardsStage 1-12
RanhornStage 1-12
Rickety CartStage 1-12
Temple of AscensionStage 1-12
The Noble TavernStage 1-12
MedalsStage 2-1
Dark ForestStage 2-3
Arcane LabyrinthStage 2-4more at Stage 26-60
StoreStage 2-8
King's TowerStage 2-12
Battle SpeedStage 2-16 or VIP 2
LibraryStage 2-16
GuildStage 2-20
Guild GroundsStage 2-20more at Stage 7-40
Arena of HeroesStage 2-28
Dura's TrialStage 2-28
Game AcceleratorStage 2-28 or VIP 2
Peaks of TimeStage 2-28more at Stage 6-4, Stage 27-60
Bounty BoardStage 3-12
Resonating CrystalStage 4-36
Wall of LegendsStage 4-36
The Oak InnStage 5-1more at Stage 17-40
Trading HubStage 5-4
ArtifactsStage 6-4
Voyage of WondersStage 6-20
Arena of TrialsStage 6-40
Field of StarsStage 9-20more at Stage 11-40
Legends' Challenger TournamentStage 9-20
Heroes of EsperiaStage 11-40
Twisted RealmStage 12-40
Artifact enhancementStage 13-40
Faction TowersStage 14-40
Abyssal ExpeditionStage 15-40
Legendary EpicStage 15-40
Misty ValleyStage 17-40
4x Battle SpeedStage 19-40 or VIP 9
Game Accelerator x6Stage 19-40 or VIP 9
Replace HeroStage 19-40
Temporal BeaconStage 19-40
Temporal RiftStage 19-40
Upsurge PursuitStage 19-40
Auto BattleStage 20-60
Faction HuntStage 24-60
Treasure ScrambleStage 24-60
Celestial & Hypogean TowersStage 29-60
Guild boss Quick BattleVIP 6