Timed Doors
Timed doors appear in few transition levels (levels that are in-between two biomes). If a timed door is not reached and opened within a set amount of time in a run, it will be locked and unopenable. Time spent in the beginning area of The Prisoners' Cell, the Collector's Room, in shops, treasure and lore rooms does not count towards timed doors. Behind each door are some gems and jewels, which turn into gold when picked up, as well as 20 cells. Some timed doors also contain a blueprint and a 3-choice item altar that consist of either 3 items or 2 items and 1 amulet. The items in these altars always have the same quality, depending on how many BSC are active.
Times for each transition level
| Transition level | Time | Blueprint |
|---|---|---|
| To the Promenade of the Condemned | 2 minutes | Assault Shield |
| To the Toxic Sewers | 2 minutes | Frenzy |
| To the Dilapidated Arboretum | 2 minutes | |
| To the Prison Depths | N/A | |
| To the Corrupted Prison | N/A | |
| To the Ramparts (from Promenade/Toxic Sewers) | 8 minutes | |
| To the Ramparts (from Corrupted Prison) | N/A | |
| To the Ossuary (from Promenade) | 8 minutes | Marksman's Bow |
| To the Ossuary (from Prison Depths) | N/A | |
| To the Ancient Sewers (from Toxic Sewers) | N/A | |
| To the Ancient Sewers (from Prison Depths/Corrupted Prison) | N/A | |
| To the Morass of the Banished (from Arboretum/Promenade) | N/A | |
| To the Morass of the Banished (from Prison Depths) | N/A | |
| To the Black Bridge | N/A | |
| To the Insufferable Crypt | N/A | |
| To the Nest | N/A | |
| To the Stilt Village/Slumbering Sanctuary (from Black Bridge) | 15 minutes | Root Grenade |
| To the Slumbering Sanctuary (from Insufferable Crypt) | N/A | |
| To the Graveyard (from Insufferable Crypt) | 19 minutes, 30 seconds | |
| To the Stilt Village/Graveyard (from Nest) | 15 minutes | |
| To the Clock Tower | N/A | |
| To the Forgotten Sepulcher | 26 minutes | |
| To the Cavern | N/A | |
| To the Clock Room | N/A | |
| To the Guardian's Haven | N/A | |
| To the High Peak Castle | N/A | |
| To the Throne Room (from High Peak Castle) | N/A | |
| To the Throne Room (from Guardian's Haven) | N/A | |
| To the Astrolab (5 BSC only) | N/A | |
| To the Observatory (5 BSC only) | N/A |
Perfect Doors
Perfect Doors appear in most transition levels (levels that are inbetween two biomes), sometimes even alongside Timed Doors. There are 2 types of Perfect Doors.
- The first type is in transition levels after a biome and requires you to reach a set amount of kills in a row (30 or 60) without getting hit. Even if you get hit before the start or after the end of your kill streak, the door will still be open.
- The second type is located in transition levels after bosses, and requires you to defeat the boss without being hit once.
Killing mobs that do not reduce the curse counter will not increase the kill counter, but getting hit from them or traps will reset the kill counter. The contents of the Perfect Doors following biomes are the same as timed doors. Perfect Doors that follow boss fights are different: they contain one Legendary item instead of a 3-choice item altar. The rules for item quality are the same as for the item altars behind Timed Doors. Being poisoned, for instance by pools in the sewers, with a no-damage or "poison heals you" buff will not count, though the poison DoT symbol will appear over your head as normal
Perfect door conditions for each transition level
| Transition level | Condition |
|---|---|
| To the Promenade of the Condemned | Get 30 kills without being hit |
| To the Toxic Sewers | Get 30 kills without being hit |
| To the Dilapidated Arboretum | Get 30 kills without being hit |
| To the Prison Depths | Get 60 kills without being hit |
| To the Corrupted Prison | Get 60 kills without being hit |
| To the Ramparts | Get 60 kills without being hit |
| To the Ramparts (from Corrupted Prison) | N/A |
| To the Ossuary (from Promenade) | Get 60 kills without being hit |
| To the Ossuary (from Prison Depths) | N/A |
| To the Ancient Sewers (from Toxic Sewers) | Get 60 kills without being hit |
| To the Ancient Sewers (from Prison Depths/Corrupted Prison) | N/A |
| To the Morass of the Banished (from Arboretum/Promenade) | Get 60 kills without being hit |
| To the Morass of the Banished (from Prison Depths) | N/A |
| To the Black Bridge | Get 60 kills without being hit |
| To the Insufferable Crypt | Get 60 kills without being hit |
| To the Nest | Get 60 kills without being hit |
| To the Stilt Village/Slumbering Sanctuary (from Black Bridge) | Defeat the boss without being hit |
| To the Slumbering Sanctuary (from Insufferable Crypt) | Defeat the boss without being hit |
| To the Graveyard (from Insufferable Crypt) | Defeat the boss without being hit |
| To the Stilt Village/Graveyard (from Nest) | Defeat the boss without being hit |
| To the Clock Tower | Get 60 kills without being hit |
| To the Forgotten Sepulcher | Get 60 kills without being hit |
| To the Cavern | Get 60 kills without being hit |
| To the Clock Room | Get 60 kills without being hit |
| To the Guardian's Haven | Get 60 kills without being hit |
| To the High Peak Castle | Defeat the boss without being hit |
| To the Throne Room (from High Peak Castle) | Get 60 kills without being hit |
| To the Throne Room (from Guardian's Haven) | Defeat the boss without being hit |
| To the Astrolab (5 BSC only) | Defeat the boss without being hit |
| To the Observatory (5 BSC only) | N/A |
Notes
- You can enable the kill counter HUD by going to Settings, then Gameplay, then ticking the "Display the number of enemies killed without being hit" box.