Turn Undead

Clerics and Paladins have the ability to turn undead creatures (allied or enemies). When this mode is activated and the undead creatures are in range of the character, there is a possibility the undead will stop attacking their targets and run away from the character for 10 rounds (ie 1 turn).
If the Turn Undead level of a good or neutral aligned character is sufficiently higher than the HD of the undead, this mode will instead destroy it instantly, while evil characters will bring it under their control for 10 rounds.
While the mode is active, the character using it can't perform any actions aside from moving. Silenced characters can still Turn Undead. Clerics under Sanctuary and Invisibility can also activate their TU button and move around.
Paladins of opposite alignment (whether they're allies or enemies) can also be turned by Clerics or other Paladins of higher level.Reddit discussion
The table below shows the chance for a specific character to turn/destroy/charm an undead (keep in mind that the Shield of Egons can affect the values below, improving the level of a character for the exclusive purpose of the Turn Undead ability):
Cleric level compared to undead
(-2 penalty for Paladins)	Chance to turn(make flee)	Chance to destroy/charm
Below undead level 	0% 	0%
Same level as the undead 	25% 	0%
1 level higher than undead 	50% 	0%
2 levels higher than undead 	75% 	0%
3 levels higher than undead 	100% 	0%
4 levels higher than undead 	100% 	0%
5 levels higher than undead 	75% 	25%
6 levels higher than undead 	50% 	50%
7 levels higher than undead 	25% 	75%
8+ levels higher than undead	0% 	100%
And the following table applies to turning Paladins of opposite alignment (Shield of Egons bonus still applies):
Cleric level compared to Paladin
(-2 penalty for Paladins)	Chance to turn(make flee)
Same level as the Paladin 	0%
1 level higher than the Paladin 	0%
2 levels higher than the Paladin	0%
3 levels higher than the Paladin	25%
4 levels higher than the Paladin	50%
5 levels higher than the Paladin	100%
==Technical details==
The formula for turning undead/Paladins works as follows:
* If character level (-2 for Paladins) + (Shield of Egons bonus, if applicable) >= undead level + (1d4-1) + 5, then the undead is destroyed/charmed (depending on the character's alignment)
* If character level (-2 for Paladins) + (Shield of Egons bonus, if applicable) >= undead level + (1d4-1), then the undead is turned (flees)
* If character level (-2 for Paladins) + (Shield of Egons bonus, if applicable) >= paladin of opposite alignment level + (1d4-1) + 3, then the paladin is affected by fear/morale panic.
Besides the above, here are some other considerations to keep in mind:
* Despite what's stated in other sites, there's no "critical miss" or "critical success" when it comes to Turn Undead. If your level is high enough compared to your target, it will always work.
* Unlike what's in the 2e Player's Handbook, it's not just evil Clerics who can turn Paladins in these games, simply put: any Paladin or Cleric, good or evil, can turn any Paladin of opposite alignment (Clerics cannot be turned).
* Turn Undead does affect friendly undead and friendly Paladins.
* Every effect (turn undead, charm undead and turn Paladin) lasts for 10 rounds (ie 1 turn).
* A few undead are immune to turning
* Allied undead who are turned can still receive orders, as they're not under the effect of any kind of true fear effect
* Allied undead will turn hostile if not given any orders until the unique turning effect expires
* Paladins, on the other hand, do experience true fear/morale failure effects when turned and cannot be controlled, unless they're cured or the full duration of the effect expires
* Luck has no effect whatsoever on the 1d4 roll
* To check an undead's exact level, one can check their page on this wiki or simply use cheats to add them to the party (CTRL+Q when 'cheat keys' are activated) and then go to the "class" tab in their character sheet
All the information in this section was thoroughly tested via performing 50 rounds of turning in several gradually varying situations: a lv 1 Cleric vs the lv3 undead from base Animate Dead, then a lv2 Cleric against the same undead, then lv3, then lv4... Until level 11, when said Cleric charmed the undead for 50 rounds in a row, showing that there's no chance to fail with that level difference; then, the same tests were performed against a Paladin and then with Paladins against undead and each other. Tests were also performed in both BGEE and BG2EE, so there's no difference between the two.
== Notes ==
* Turn Undead is hard coded in the game engine. This makes it is difficult to see or analyze the inner workings of the code. Making modifications to hard coded parameters is also difficult and would require developer level access and source code.
== Gallery ==
Sanctuary and Turn Undead (Zombies) - BGee.png|Using Sanctuary to Turn Undead (Zombies) without being attacked (BG:EE)
SH1UNDEAD.png|Party cleric observes a group of Mummy and Ghast creatures in Spellhold Bodhi's Hunt Level 2. Will soon activate Turn Undead button.
SH1UNDEAD2.png|Button is activated. Undead shamble toward her. Experience level 14 Priest level was seemingly enough to destroy them all, as they explode into unholy chunks. XP awarded.
OG WK Viconia Controls Undead.png|Viconia DeVir is a level 18 Cleric and Neutral Evil. Her Turn Undead power takes control of the Priest (WK Altar Level) and Skeleton Warrior.
OG Turn Undead WK.png|Aerie currently a level 14/14 Cleric / Mage equips the SotM while invisible, and easily destroys several Shadow Fiends. Two Devil Shade creatures remain, but one is "turned".
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