Pool of Radiance: Ruins of Myth Drannor Constitution Bug Fix
Quick answer
Unequip every Constitution-increasing item before any permanent CON gain or before leveling up, and fix existing HP loss with a savegame editor. The constitution bug permanently removes hitpoints because the game grants the max HP increase the CON modifier should provide only when it is bugged, then subtracts HP later as if it had been applied.
| Trigger condition | Equipping an item that makes CON an odd number, then gaining a permanent CON increase to an even number, then unequipping the item removes HP that was never granted.PCGamingWiki - Pool of Radiance: Ruins of Myth Drannor |
|---|---|
| Prevention | Unequip all CON-increasing items before permanent Constitution improvements and before leveling up.PCGamingWiki - Pool of Radiance: Ruins of Myth Drannor |
| HP restoration | Use a savegame editor to add HP equal to the character's level; the loss does not carry through to later levelups.PCGamingWiki - Pool of Radiance: Ruins of Myth Drannor |
The Pool of Radiance: Ruins of Myth Drannor constitution bug permanently drains HP. Learn how to avoid it and restore lost hitpoints with a save editor.
Table of Contents
Unequip every Constitution-increasing item before any permanent CON gain or before leveling up, and fix existing HP loss with a savegame editor. The constitution bug permanently removes hitpoints because the game grants the max HP increase the CON modifier should provide only when it is bugged, then subtracts HP later as if it had been applied.
Why you lose hitpoints permanently
The bug follows a specific sequence, documented by the community on PCGamingWiki:
- Your character equips an item that raises Constitution to an odd number.
- The character then receives a permanent CON increase, for example from one of the attribute-increasing barrels, bringing CON to an even number. This raises CON-aligned values like saving throws, but the interaction with the equipped item is bugged, so max HP never goes up.
- When you later unequip the item, the CON modifier drops and the game subtracts hitpoints — HP you never actually gained.
You can also end up with lower HP from levelups while wearing CON-increasing items, since the HP roll is reduced as well.
How to avoid the bug
- Open the inventory and unequip all items that increase Constitution before using an attribute-increasing barrel or any other permanent CON gain.
- Keep those items unequipped every time a character levels up, then re-equip them afterward.
- Save before any permanent attribute gain so you can reload if max HP changes unexpectedly.
One player on the game's Steam forums also notes that you cannot delay leveling up, so party members often level in uncontrolled conditions; staggering XP so characters level one at a time limits the damage from bad HP rolls, but the unequip rule above is what specifically prevents this bug.
How to restore lost HP
If a character already lost hitpoints:
Back up your save
Copy the save file from the savegames folder before editing, since a bad edit can destroy it.Open the save in a savegame editor
Use one of the community savegame editor programs for the game, not the .sav.sta files.Add HP equal to the character's level
For example, give a level 3 character +3 HP to restore what was lost.
You only need to do this once; the bug does not carry through to later levelups. Some players also report that hitpoints restore correctly when a level drain effect wears off, but that remains unverified.
The official Steam page for the re-release states it fixes "numerous original game bugs," but no patch note names this Constitution issue specifically, so treat the unequip workaround as still necessary as of 2026-11-07.
FAQ
Does the constitution bug affect saving throws too?
No. Saving throws and other CON-aligned values update correctly when the permanent CON increase lands; only the max HP increase fails to apply.
Do I need to repeat the save editor fix after every levelup?
No. The lost HP does not carry through to later levelups, so a single +level HP correction per affected character is enough.
Does the bug occur in the 2026 Steam re-release?
The official Steam page does not list this bug among the fixed issues, so unequip CON items as a precaution until confirmed otherwise.
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