Star Wars Knights of the Old Republic II: The Sith Lords/Skills

Intelligence modifier (INT) resulting from points allocated at character generation and on level up determines how many skill points a class is granted at those times:

Character generation

Class	Jedi Guardian	Jedi Sentinel	Jedi Consular
Skill points	(1+INT) * 4	(3+INT) * 4	(2+INT) * 4

Level up

Skill points
1 + INT		2 + INT	3 + INT	4 + INT
Jedi Guardian Soldier Combat Droid	Expert Droid Jedi Weapon Master Sith Marauder	Jedi Consular Jedi Master Sith Lord	Jedi Sentinel Scout Jedi Watchman Sith Assassin	Scoundrel Tech Specialist

Characters are always granted at least four skill points at character generation, and at least one on level up:

Minimum Intelligence	Skill points
Minimum Intelligence	1 + INT	2 + INT	3 + INT	4 + INT
8	1	1	2	3
10	1	2	3	4
12	2	3	4	5
14	3	4	5	6
16	4	5	6	7
18	5	6	7	8

All points do not have to be invested at character generation or level up, so they can be saved for a future level up. After becoming a different class, a character’s skill points on level up are determined by the new class, but the class skills of the earlier class are retained and those of the new class are gained. Class skills cost one point to raise one rank, while cross-class skills cost two points to raise one rank:

Skill	Computer	Demo	Stealth	Aware	Persuade	Repair	Security	Treat
Attribute modifier	Intel	Intel	Dexterity	Wisdom	Charisma	Intel	Intel	Wisdom
Jedi Guardian	2	1	2	1	1	2	2	1
Jedi Sentinel	1	2	1	1	1	2	1	1
Jedi Consular	2	2	2	1	1	1	2	1
Soldier	2	1	2	1	2	2	2	1
Scout	1	1	2	1	2	1	2	1
Scoundrel	2	1	1	1	1	2	1	2
Tech Specialist	1	1	2	1	2	1	1	2
Combat Droid	1	1		1		1	1
Expert Droid	1	2		1		1	1
Weapon Master	2	1	2	1	1	2	2	1
Jedi Watchman	1	2	1	1	1	2	1	1
Jedi Master	2	2	2	1	1	1	2	1
Sith Marauder	2	1	2	1	1	2	2	1
Sith Assassin	1	1	1	1	1	2	1	2
Sith Lord	2	2	2	1	1	1	2	1

Class Skill feats can change a cross-class skill to a class skill. Points can be invested in class skills to maximum rank equal to level + 3, while they can only be invested in cross-class skills to maximum rank equal to [ (level + 3) / 2].

If you select Auto Level Up or Recommended, skills are given the following priority when investing points:

Jedi Guardian	Jedi Sentinel	Jedi Consular	Soldier	Scout	Scoundrel	Tech Specialist	Combat Droid	Expert Droid
Treat Injury	Stealth	Persuade	Treat Injury	Computer	Stealth	Repair	Repair	Repair
Demolitions	Computer	Treat Injury	Awareness	Demolitions	Demolitions	Treat Injury	Awareness	Computer
Awareness	Persuade	Repair	Demolitions	Repair	Security	Awareness	Computer	Security
Persuade	Awareness	Awareness	Repair	Awareness	Awareness	Computer	Security	Demolitions
Stealth	Security	Computer	Security	Treat Injury	Treat Injury	Demolitions	Demolitions	Awareness
Repair	Treat Injury	Stealth	Computer	Security	Repair	Stealth
Security	Demolitions	Security	Stealth	Stealth	Computer	Security
Computer	Repair	Demolitions	Persuade	Persuade	Persuade

However, unlike at character generation, class skills take priority over cross-class skills: for example, for an Expert Droid like T3-M4, Awareness is prioritized over Demolitions until he has the Class Skill: Demolitions feat.

Weapon Master	Jedi Watchman	Jedi Master	Sith Marauder	Sith Assassin	Sith Lord
	Stealth	Persuade	Treat Injury	Stealth	Persuade
Demolitions	Computer Use	Repair	Demolitions	Demolitions	Repair
Persuade	Persuade	Treat Injury	Persuade	Persuade	Treat Injury
Awareness	Awareness	Awareness	Awareness	Awareness	Awareness
Stealth	Security	Computer Use	Stealth	Security	Computer Use
Repair	Treat Injury	Stealth	Repair	Computer Use	Stealth
Security	Demolitions	Security	Security	Treat Injury	Security
Computer Use	Repair	Demolitions	Computer Use	Repair	Demolitions

Computer Use[edit]

Related Attribute: Intelligence Computer Use allows a character to slice computer programs using disposable logic rams called computer spikes. A character might disable gun turrets or flood a patrol area, with more complicated tasks requiring more spikes. A high rank in this skill reduces the number of spikes required by 1 (to a minimum of 1) for every 4 points total, including attribute score modifiers.

Computer Use is a class skill for the following:

Minimum rank 15 is needed for your main character to fully upgrade T3-M4.

Demolitions[edit]

Related Attribute: Intelligence Demolitions can be used to set, recover or disarm mines. Such devices range in difficulty from minor (DC10 to set) to devastating (DC30 to set). Attempting to disarm the mine adds +5 to the DC. Attempting to recover the mine adds +10 to the DC. This skill cannot be used untrained.

Demolitions is a class skill for the following:

Difficulty Classes for setting, disabling or recovering mines are reduced by 5 on Easy but increased by 5 on Difficult. According to Feedback, DC increases to disarm and recover mines are cumulative rather than separate:

Mine	Easy			Normal			Difficult
Mine	Set	Disable	Recover	Set	Disable	Recover	Set	Disable	Recover
Minor	5 (-15)	10 (-10)	20 (0)	10 (-10)	15 (-5)	25 (5)	15 (-5)	20 (0)	30 (10)
Average	10 (-10)	15 (-5)	25 (5)	15 (-5)	20 (0)	30 (10)	20 (0)	25 (5)	35 (15)
Strong	15 (-5)	20 (0)	30 (10)	20 (0)	25 (5)	35 (15)	25 (5)	30 (10)	40 (20)
Deadly	20 (0)	25 (5)	35 (15)	25 (5)	30 (10)	40 (20)	30 (10)	35 (15)	45 (25)
Devastating	25 (5)	30 (10)	40 (20)	30 (10)	35 (15)	45 (25)	35 (15)	40 (20)	50 (30)

Successfully setting, disabling or recovering mines requires that the sum of Demolitions skill rank and a d20 roll is equal to or greater than the DC. When not in combat 20 is always rolled, so minimum skill rank (in brackets) is DC - 20.

A maximum of 15 mines can be set in any map. While friendly mines can normally be recovered without a DC check, after leaving a map and returning to it any mines left behind can only be recovered after a successful DC check (although they remain friendly).

Hostile mines must be detected by passing an Awareness check before they can be disabled or recovered. Disabling a mine always grants experience equal to 10 * user level, while that granted for recovering a mine depends on its strength and user level:

XP * level	User level
XP * level	Minor	Average	Strong	Deadly	Devastating
15	1-5	1-10	1-15	1-20	1-25
10	> 5	> 10	> 15	> 20	> 25

Frag, Plasma and Sonic mines can also be used to blast locks instead of bashing or Security: unlike bashing this doesn't result in broken items (although it seems broken items are only added to inventory rather than replacing items in it), but unlike Security it doesn't grant any experience. However, according to Feedback attempts only succeed if 20 + (Demolitions rank / 2) + mine strength equals or exceeds lock DC:

Mine	Minor	Average	Strong	Deadly	Devastating
Strength	0	3	9	9	12
Rank	(DC * 2) – 40	(DC * 2) – 46	(DC * 2) – 58	(DC * 2) – 58	(DC * 2) – 64

Strong and Deadly mines have the same strength. Lock DC decreases by 5 on Easy and increases by 5 on Difficult, so minimum rank for success decreases or increases by 10.

The only Devastating mines that can be disabled or recovered are actually Deadly mines in all but name so, unless you want to recover your own Devastating mines after leaving then returning to an area, your party only needs to be able to disable or recover Deadly mines. Your main character only solos some areas containing Average mines, which can also be triggered using a Stun Droid power.

Stealth[edit]

Related Attribute: Dexterity Stealth governs the use of camouflage devices to enter Stealth Mode. If a character equips such a device and activates Stealth Mode, opponents must make an Awareness check versus the character's Stealth skill or be unable to detect them, even if the character is in a direct line of sight. A character in Stealth Mode can set, disable and recover mines. Party members will not automatically enter combat while in this mode. Combat cancels Stealth Mode. Stealth Mode will not work without a camouflage unit. Units of higher quality grant a bonus to the skill. This skill cannot be used untrained.

Stealth is a class skill for the following:

Jedi Sentinel

Scoundrel

Jedi Watchman

Sith Assassin

The Force Camouflage power granted to a Jedi Watchman or Sith Assassin enables the use of Stealth without a Stealth Field Generator.

To use Stealth while in a party, Solo Mode must be turned on as well. Movement speed in Stealth Mode is normally even slower than walking, and cannot be increased with any Adrenal Alacrity or Hyper-adrenal Alacrity stimulant, or any Burst of Speed power. However, movement speed is unaffected by Stealth Mode once the Stealth Run feat is selected.

An Awareness check is made on first entering enemy awareness range, and every 20 seconds thereafter unless Stealth skill rank decreases (due to removing equipment with Stealth or Dexterity bonuses, a buff expiring or a debuff taking effect): however, if undetected then the next check is still 20 seconds after the previous one. The details of these checks are only recorded in Feedback when the party leader is successfully detected, which requires Awareness Breakdown > Stealth Breakdown:

Awareness Breakdown	Value
roll	1-20 (1d20)
awareness skill rank	#
standing still modifier	5
distance modifier	-(1-4)
run modifier	-5
rear arc modifier	-10
combat modifier	-10

Stealth Breakdown	Value
roll	11-20 (1d10 + 10)
stealth skill rank	#
standing still modifier	5

When multiple enemies are in range, each makes a separate Awareness roll against a single Stealth roll.

Standing still modifier 5 is added to both Breakdowns even while moving (even with Stealth Run), but if an enemy is running then it's replaced with run modifier -5 in the Awareness Breakdown.

Enemies are less likely to detect you the greater the distance between you, if you are behind them in their rear arc, or they are engaged in combat. However, to guarantee you remain undetected normally requires Stealth skill rank ≥ Awareness skill rank + 9. Otherwise, the maximum chance of being detected is normally as follows:

Stealth = Awareness	- 20	- 19	- 18	- 17	- 16	- 15	- 14	- 13	- 12	- 11
Detection chance	100%	99.5%	98.5%	97%	95%	92.5%	89.5%	86%	82%	77.5%

Stealth = Awareness	- 10	- 9	- 8	- 7	- 6	- 5	- 4	- 3	- 2	- 1
Detection chance	72.5%	67.5%	62.5%	57.5%	52.5%	47.5%	42.5%	37.5%	32.5%	27.5%

Stealth = Awareness	+ 0	+ 1	+ 2	+ 3	+ 4	+ 5	+ 6	+ 7	+ 8	+ 9
Detection chance	22.5%	18%	14%	10.5%	7.5%	5%	3%	1.5%	0.5%	0%

For example, if Stealth = Awareness then the chance of detection when face-to-face is 22.5% (45/200), but with distance modifier -4 (effectively Stealth = Awareness + 4) it's only 7.5% (15/200). The table below should help illustrate how the probabilities above were derived:

Stealth roll	Awareness roll
Stealth roll	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
11
12													Detected if Stealth = Awareness
13
14
15						Not detected if Stealth = Awareness
16
17
18	Not detected if Stealth = Awareness - 10
19
20

However, sometimes detection can still succeed when Awareness Breakdown is less than Stealth Breakdown, even though the values in each Breakdown all sum as expected. It can happen sometimes when a distance modifier is added, although its magnitude doesn't correspond to the discrepancy. The reason for this is unknown.

Although Stealth Mode doesn't prevent computer use or droid repair, doing so cancels it in the same way as entering dialog.

Awareness[edit]

Related Attribute: Wisdom Awareness governs the ability of a character to spot objects or enemies hidden by Stealth. If a successful check of this skill is made against the Stealth skill of an enemy or the DC of a mine, the enemy or object is noticed and becomes visible. Awareness is always active, but results are best while a character is moving slowly. Running imparts a -5 penalty to any checks of the skill.

Awareness is a class skill for all classes.

According to Feedback, Difficulty Classes for detecting mines are reduced by 5 on Easy but increased by 5 on Difficult.

Mine	Easy	Normal	Difficult
Minor	5 (-15)	10 (-10)	15 (-5)
Average	10 (-10)	15 (-5)	20 (0)
Strong	15 (-5)	20 (0)	25 (5)
Deadly	20 (0)	25 (5)	30 (10)
Devastating	25 (5)	30 (10)	35 (15)

Successfully detecting hostile mines requires that the sum of Awareness skill rank and a d20 roll is equal to or greater than the DC. When not in combat 20 is always rolled, so minimum skill rank (in brackets) is DC - 20.

Although running imparts a -5 penalty (maximum roll 15), this isn't an issue if you stop briefly every 30 meters or so: for example, pause upon turning a corner, reaching a junction or entering a room (if opening a door hasn't already obliged you to do so).

The only Devastating mines that need to be detected are actually Deadly mines in all but name, so your party only needs to be able to detect those. Your main character only solos some areas containing Average mines.

Awareness is also used in dialogue checks to get additional information about the motives etc. of characters.

Persuade[edit]

Related Attribute: Charisma Only the main player character can select this skill during level-up. Persuade options appear in dialogue when interesting or sensitive information is available that a character might otherwise be reluctant to reveal. When selected, rank in this skill is compared with how extreme the request is (Difficulty Class low, medium, or high, relative to player level). A guard might easily agree to increase a bounty, but convincing him to leave his post would be much harder.

Persuade is a class skill for the following:

Jedi

Scoundrel

Prestige classes

Minimum rank 27 is required to pass every persuade check in the game.

Repair[edit]

Related Attribute: Intelligence Repair allows a character to fix disabled mechanical devices like droids using disposable packages of parts. The number of part kits required increases with the difficulty of the repair. This skill reduces the number of parts required by 1 (to a minimum of 1) for every 4 points total, including attribute score modifiers. This skill also modifies the amount of vitality points recovered when party member droids use repair kits, advanced repair kits, and construction kits on themselves to repair combat damage.

Repair is a class skill for the following:

Minimum rank 21 is needed for your main character to fully upgrade T3-M4.

Minimum rank 20 is needed for your main character to receive 100% of an item's component value when it's broken down by any character using a workbench.

Security[edit]

Related Attribute: Intelligence Security is used to access electronic locking devices. Once a character invests points in this skill, it becomes one of the default options on targeted doors and containers. Security spikes can grant a bonus to the skill, and any in inventory will also appear as a default option on targeted doors and containers. Characters with no points invested cannot attempt to use this skill.

Security is a class skill for the following:

According to Feedback, Difficulty Classes for locks are reduced by 5 on Easy but increased by 5 on Difficult. Successfully opening a lock requires that the sum of Security skill rank and a d20 roll is equal to or greater than the DC. When not in combat 20 is always rolled, so minimum skill rank (in brackets) is DC - 20.

Successful use of Security to open a lock normally grants experience equal to 5 * user level. However, more difficult locks have DCs based on main character level, and successfully opening these grants experience equal to 10 * user level:

Combat Difficulty	Easy	Normal	Difficult
Difficulty Class	23 (3) + main level	28 (8) + main level	33 (13) + main level

Treat Injury[edit]

Related Attribute: Wisdom Treat Injury improves the amount of damage healed when a medpac is used, adding the modified rank to the number of vitality points healed. Advanced medpacs and life support packs apply multipliers to the user's skill, increasing the amount healed again.