Those doors you can't open with lockpicks in stage 1 are the doors only orcs can open.
Throw two stones in a row in front of the door on stage 2 upstair where you see 'absence'. The door is also only enemy can open, and is auto locking door (and what I mentioned right now is a hidden strategy where you can get another 'Key for somewhere').
Run away immediately after you trigger the magic circle on stage 3, then you will be able to deal with the door.
Unlike the other restraints, yellow piercing actually has a good effect, every enemy Nesche meets has a chance of getting charmed(which is the same effect with throwing aprodisiac potion to the enemy) and they get reduced run speed and cannot get rage(raging enemy has increased run speed and shorter stun time when get shot from arrows, sadly the game currently doesn't show the rage VFX).
I have a plan for expanding the restraints gameplay from just having one stage, for example you are armbinded or not, to multiple level, such as armbinder(Lock level 0), armbinder(Lock level 1) or more and you are getting harder to unlock if the lock level of specific restraint gets higher.
Currently we just have cursed items and curse from some magic circles. I will also gonna expand the gameplay with implementing fantasy monsters with cursing or binding skills.
Oh I see the bug lul map knowledge should save/loaded but it seems it doesn't. I'll fix it now.
Keeping health to small amount and not causing game over seems kinda great idea. I'll try this for temporarily, implementing this mechanic into Normal mode exclusively.
Rope binding restraint will make player deplete her current stamina for 1/4 when she does some action like throwing or reloading. And yes it currently has a minimal effect to gameplay, since my initial thought was like some restraints can cause game difficulty raising significantly, like leg shackles or armbinder, but some just doesn't.
It can be adjusted for balance such as limiting stamina restoration for half amount of max stamina. I will change if I get more complaints or some good ideas for the rope restraint.
Edit:
Ver 1.0.2.13 is now up. The bug for minimap is now fixed. Your suggestion for health loss cap is now implemented for Normal and Hard modes.
If you are at the higher side of the first stage(where you can reach after you climb up the rope), you mean you found 'A key for somewhere' and ulocked the portcullis, ran through the portcullis and you stuck at the end.
You need to hide inside the room where you can find as soon as you enter the portcullis and wait until the orc bypasses and unlocks the iron lattice door(its actually not unlockable for player, only orcs can do).
Don't forget to close the door when you are hiding. Orcs gonna check your room if it's open.
