Star Wars: Knights of the Old Republic/Saves

Just as the success of a weapon attack is determined by an attack roll against defense, the success or extent of other damaging, debilitating and status-altering effects is determined by a saving throw against the Difficulty Class (DC) of those effects: the defender makes an opposed roll using d20 + the relevant save (Fortitude, Reflex or Will) versus the attacker's DC. If the saving throw is greater (or equal), then its success may reduce or negate any effect; if it fails, the attack has full effect.

Thus a saving throw always fails if maximum roll 20 + Save < DC, and always succeeds if minimum roll 1 + Save ≥ DC. Otherwise, the chance of success is as follows:

Difficulty Class - save
> 20	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	< 2
0%	5%	10%	15%	20%	25%	30%	35%	40%	45%	50%	55%	60%	65%	70%	75%	80%	85%	90%	95%	100%

For example, a Fortitude saving throw must normally be made at DC 30 if a Deadly Gas Mine is triggered: Fortitude save 9 or less means this throw always fails (maximum roll 20 + 9 = 29), always resulting in poisoning; however, if it's 19 then it succeeds 50% of the time (roll (11-20) + 19 = 30-39); and if it's 29 or more then it always succeeds (minimum roll 1 + 29 = 30), never resulting in poisoning.

Each save affects the following (although Immunity, or Force Immunity feats, can negate effects before a saving throw is even made):

Source	Fortitude	Immunity	Reflex	Immunity	Will	Immunity
Feats	Critical Strike	(Stun)
	Sniper Shot	(Stun)
Force powers	Affliction, Plague	Poison	Force Push, Wave	(Stun)	Fear, Horror, Insanity	(Fear)
	Stasis (Field)	Paralysis	Disable Droid et al.		Shock et al.
	Stun	(Stun)	Force Whirlwind		Slow
	Drain Life, Death Field
	Stun Droid
	Wound, Choke, Kill
Grenades	Poison Grenade	Poison	CryoBan Grenade	Paralysis	Concussion Grenade	(Stun)
			Plasma Grenade	(Fear)	Sonic Grenade
			Frag, Ion Grenades
			Thermal Detonator
Mines	Gas mines	Poison	Frag, Plasma mines		Flash mines	(Stun)
On Hit	Horror	(Fear)	Paralyze	Paralysis	Stun	(Stun)
	Poison	Poison	Attribute Damage Dex
	Instant Death		Slowed
Special weapons			Flame throwers
			Carbonite projectors

See the Difficulty Classes page for a more detailed breakdown of DCs to be saved against.

All characters have saves which increase as level increases. Progression varies according to class:

Save	Soldier	Scout	Scoundrel	Jedi Guardian	Jedi Sentinel	Jedi Consular	Combat Droid	Expert Droid	Minion
Fortitude	Fast	Fast	Slow	Fast	Fast	Fast	Fast	Slow	Minion
Reflex	Slow	Fast	Fast	Fast	Fast	Average	Slow	Fast	Minion
Will	Slow	Fast	Slow	Average	Average	Fast	Slow	Slow	Minion

Although each class has its own saving throw table, progression of each save is normally Fast, Average or Slow, with the sole exception of the non-playable Minion class:

Level	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
Slow	0	0	1	1	1	2	2	2	3	3	3	4	4	4	5	5	5	6	6	6
Average	1	2	2	2	3	3	4	4	4	5	5	6	6	6	7	7	8	8	8	9
Fast	2	3	3	4	4	5	5	6	6	7	7	8	8	9	9	10	10	11	11	12
Minion	1	1	1	1	2	2	2	3	3	4	4	5	5	6	6	7	7	8	8	9

Attribute modifiers and any Conditioning feat bonus adds to these base saves:

Save	Fortitude	Reflex	Will
Modifier	Constitution	Dexterity	Wisdom

Feat	Base	Improved	Master
Conditioning	+1	+2	+3

Mod bonuses from Light side powers and items are restricted to maximum 20, which is achievable with any Jedi:

Source	Description	All
Light side powers	Force Aura	+2
	Force Shield	+4
	Force Armor	+6
	Force Valor	+2
	Knight Valor	+3
	Master Valor	+5

Source	Description	All
Robes	Star Forge Robes	+2
Head	Advanced Bio-Stabilizer Mask	+1
	Stabilizer Mask	+2
Hands	Karakan Gauntlets	+3
Belts	CNS Strength Enhancer	+2
	Adrenaline Stimulator	+4

Force Aura, Shield or Armor only affect the Jedi for 20 seconds, whereas a Valor power affects the Jedi's entire party for 20 seconds (and also grants attribute bonuses that increase base saves as well).

Some headgear and belts only grant a bonus to a specific save:

Item	Description	Fort
Belts	Cardio-Regulator	+2
	Verpine C-R	+3

Item	Description	Ref
Head	GenoHaradan Visor	+3
Belts	Adrenaline Amplifier	+2
	Advanced AA	+3

Item	Description	Will
Head	Neural Band	+2
	Verpine Headband	+3

When debilitated, Dexterity modifier is no longer added to base Reflex save, and droid saves are reduced by 2.

Immunity

Immunity can negate effects before a saving throw is even made.

Critical Hits

Immunity: Critical Hits prevents the second damage roll of a critical hit. It can also grant Immunity: Sneak Attacks.

Immunity: Critical Hits becomes less useful as Defense increases. For example, even if an attacker using Master Critical Strike has Critical Threat: 13-20,x2 (maximum 40% chance), with just 40% chance to hit there's only 16% chance of a critical hit; with 20% chance to hit, there's just 4% chance of a critical hit. Roll 20 + Attack < Defense results in minimum 5% chance to hit (roll 20 is an automatic hit) and 0% critical conversion.

Immunity: Critical Hits is granted by the following:

Source	Description
Implants	Retinal Combat Implant
Head	Bothan Sensory Visor

Source	Description
Light armor	Massassi Ceremonial Armor
Medium armor	Jamoh Hogra's Battle Armor
Heavy armor	Calo Nord's Battle Armor

However, only two or three enemies in the entire game equip any of these items, so this shouldn't affect your choice to master Critical Strike:

World	Area	Character	Source
Taris	Davik's Estate	Calo Nord	Retinal Combat Implant
Tatooine	Eastern Dune Sea	Calo Nord
Manaan	Sith Base	Dark Jedi Master

Mind-Affecting

Immunity: Mind-Affecting grants the same protection from being debilitated as Force Immunity: Fear and Stun (but not Paralysis):

Fear	Stun	Paralysis	Unaffected
Fear, Horror and Insanity Plasma Grenades On Hit: Horror	Force Push and Wave Stun Critical Strikes and Sniper Shots Concussion Grenades Flash mines On Hit: Stun	Stasis (Field) CryoBan Grenades On Hit: Paralyze	Force Whirlwind Wound, Choke and Kill

Adhesive Grenades may entangle, but they are not actually debilitating.

Droids are normally granted Immunity: Mind-Affecting, and Paralysis, and are unaffected by Wound, Choke or Kill, but can be debilitated by Force Whirlwind and Stun Droid powers.

Immunity: Mind-Affecting (but not Force Immunity: Stun) also grants complete immunity to Force Push (not just stun, but damage and knockdown as well), but not a Terentatek's Slam Attack (stun only). Terentateks in turn are completely immune to Force Push, as are Rancors. Immobile droids, and some with active shields, are also completely immune to Force Whirlwind, as are Rancors and Terentateks. Force Wave can still damage and push characters with Immunity: Mind-Affecting, and can damage immobile droids, but can't stun any of these; it can stun and damage Rancors and Terentateks, but doesn't knock them down.

Immunity: Mind-Affecting is granted by the following:

Source	Description
Implants	Nerve Enhancement Package
	Advanced Bio-Stabilizer Implant
Head	Advanced Bio-Stabilizer Mask
	Stabilizer Mask
	Vacuum Mask
	Sith Mask

Source	Description
Light armor	Republic Mod Armor
	Darth Bandon's Fiber Armor
Medium armor	Environmental Bastion Armor
Heavy armor	Calo Nord's Battle Armor
Belts	Nerve Amplifier Belt

Immunity: Mind-Affecting is the most common enemy immunity but it's still rare for organic enemies, and even rarer to encounter more than one with it at a time:

World	Area	Character	Source
Dantooine	Matale Grounds	Mandalorian	Mandalorian Heavy Armor
	Grove	Sherruk
Tatooine	Eastern Dune Sea	Calo Nord	Nerve Amplifier Belt
Kashyyyk	Upper Shadowlands	Darth Bandon	Nerve Amplifier Belt
	Lower Shadowlands	Mandalorian (2)	Mandalorian Heavy Armor
		Mandalorian Commander	Nerve Amplifier Belt
Manaan	Sith Base	Sith Security Officer	Nerve Enhancement Package
Tatooine	Sand People Territory	Vorn Daasraad	Nerve Amplifier Belt
	Dune Sea	Genoharadan Hunter	Stabilizer Mask
		Genoharadan Hunter	Vacuum Mask
Star Forge System	Central Beach	Rakatan Elite Warrior	Nerve Enhancement Package
	North Beach	Rakatan Elite Warrior
		Warleader Garn
	Temple Exterior	Rakatan Elite Warrior (2)
	Elder Settlement	Elder Councillor (3)
		Elder Elite Warrior	Nerve Enhancement Package
	Temple Summit	Dark Jedi
Star Forge	Command Center	Sith Troopers	Nerve Amplifier Belt
		Dark Jedi
		Dark Jedi
	Viewing Platform	Darth Malak

A few enemies are granted Force Immunity feats, effectively granting Immunity: Mind-Affecting (and sometimes Paralysis):

World	Area	Character	Fear	Stun	Paralysis
Tatooine	Anchorhead	Dark Jedi	Yes	Yes	No
Kashyyyk	Great Walkway	Dark Jedi	Yes	Yes	No
Korriban	Dreshdae	Sith Thug	Yes	Yes	No
	Shyrack Caves	Sith Rebel	Yes	Yes	No
Star Forge System	Temple Main Floor	Dark Jedi	Yes	Yes	Yes
		Sith Master	Yes	Yes	Yes
Star Forge	Command Center	Dark Jedi	Yes	Yes	Yes

Poison

Immunity: Poison prevents the following from poisoning, before a Fortitude saving throw is even made, when active beforehand:

• Affliction and Plague

• Poison Grenades

• Gas mines

• On Hit: Poison

Plague has DC 100, which is impossible to save against: the only other possible counters, the Force Resistance or Immunity powers, can only affect individual Jedi. Immunity: Poison is granted by the following:

Source	Description
Light side powers	Knight and Master Valor
Universal powers	Improved Energy Resistance
Dark mastery	Jedi Sentinel
Implants	Bio-Antidote Package
	Advanced Bio-Stabilizer Implant

Source	Description
Head	Advanced Bio-Stabilizer Mask
	Breath Mask
	Vacuum Mask
Medium armor	Environmental Bastion Armor

Improved Energy Resistance can affect a Jedi's entire party for 120 seconds (2 minutes) from level 9 onward.

Droids are normally granted Immunity: Poison, but there are only two organic enemies in the entire game that have it:

World	Area	Character	Source
Kashyyyk	Upper Shadowlands	Gorwooken	Bio-Antidote Package
Tatooine	Dune Sea	Genoharadan Hunter	Vacuum Mask

Poison can also be neutralized with the light side power Heal, or an Antidote Kit.

Sneak Attacks

Immunity: Critical Hits also grants enemies Immunity: Sneak Attacks, preventing Sneak Attack damage being added. However, your main character and party are only granted this when debilitated.

Force Resist

Force Resist offers some protection from direct Force power attacks of Jedi opponents, possibly negating their effects. Attacking Jedi make an opposed roll using d20 + their level versus the defender's Force Resist. If the attacker's result is greater (or equal), the attack succeeds. If the defender's total is greater, the attack has no effect.

Thus some protection is only offered if minimum roll 1 + attacker level < Force Resist: for example, Force Resist 16 offers no protection if the attacking Jedi is level 15 or higher (although a saving throw can still be made). Otherwise, the chance of a Force power being resisted is as follows:

Force Resist - attacker level
< 2	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	> 20
0%	5%	10%	15%	20%	25%	30%	35%	40%	45%	50%	55%	60%	65%	70%	75%	80%	85%	90%	95%	100%

For example, Force Resist 32 cannot be breached at all until the attacking Jedi is at least level 12 (maximum roll 20 + 12 = 32); even at level 20, the chance of successfully breaching it is just 45% (roll (12-20) + 20 = 32-40).

The Force Resistance power grants a Jedi Force Resist = 10 + defender level, from level 9 onward. The chances of enemy Force powers being resisted are as follows:

Defender level	Force Resistance	Attacker level
		4	8	9	10	12	13	14	15	16	18	20	21
9	19	70%	50%	45%	40%	30%	25%	20%	15%	10%	0%
10	20	75%	55%	50%	45%	35%	30%	25%	20%	15%	5%	0%
11	21	80%	60%	55%	50%	40%	35%	30%	25%	20%	10%	0%
12	22	85%	65%	60%	55%	45%	40%	35%	30%	25%	15%	5%	0%
13	23	90%	70%	65%	60%	50%	45%	40%	35%	30%	20%	10%	5%
14	24	95%	75%	70%	65%	55%	50%	45%	40%	35%	25%	15%	10%
15	25	100%	80%	75%	70%	60%	55%	50%	45%	40%	30%	20%	15%
16	26	100%	85%	80%	75%	65%	60%	55%	50%	45%	35%	25%	20%
17	27	100%	90%	85%	80%	70%	65%	60%	55%	50%	40%	30%	25%
18	28	100%	95%	90%	85%	75%	70%	65%	60%	55%	45%	35%	30%
19	29	100%		95%	90%	80%	75%	70%	65%	60%	50%	40%	35%
20	30	100%			95%	85%	80%	75%	70%	65%	55%	45%	40%

The Force Immunity power grants a Jedi Force Resist = 15 + defender level, from level 15 onward: that's up to 25% more than Force Resist. The chances of enemy Force powers being resisted are as follows:

Defender level	Force Immunity	Attacker level
		4	8	9	10	12	13	14	15	16	18	20	21
15	30	100%			95%	85%	80%	75%	70%	65%	55%	45%	40%
16	31	100%				90%	85%	80%	75%	70%	60%	50%	45%
17	32	100%				95%	90%	85%	80%	75%	65%	55%	50%
18	33	100%					95%	90%	85%	80%	70%	60%	55%
19	34	100%						95%	90%	85%	75%	65%	60%
20	35	100%							95%	90%	80%	70%	65%

These two Force powers last 60 seconds but can be cancelled sooner: Force Suppression only cancels Force Resistance, but Force Breach cancels both Resistance and Immunity. Only four enemies in the entire game can use Force Suppression:

World	Area	Force Suppression
Manaan	Sith Base	Dark Jedi
		Dark Jedi

World	Area	Force Suppression
Leviathan	Command Deck	Dark Jedi (2)

A few more can use Force Breach:

World	Area	Force Breach
Leviathan	Hangar	Dark Jedi
Star Forge System	Temple Main Floor	Dark Jedi
	Temple Summit	Dark Jedi

World	Area	Force Breach
Star Forge	Deck 1	Dark Jedi (West, East Exit)
	Command Center	Sith Apprentices
		Dark Jedi
	Viewing Platform	Darth Malak

It's rarer still for these rare enemies to use these powers, although they're most likely to do so if you disengage from combat and move out of melee range.

Some enemies have natural Force Resist, and others can acquire it by using Force Resistance or Immunity:

World	Area	Natural	Force Resistance	Force Immunity
Dantooine	Sandral Grounds	32
Tatooine	Anchorhead		18
Kashyyyk	Great Walkway		18
Korriban	Valley of Dark Lords	32	24
	Sith Academy		24
	Shyrack Caves	26 - 32
	Tomb of Ajunta Pall	32	24 - 28
	Tomb of Tulak Hord	32		30
	Tomb of Marka Ragnos	32
	Tomb of Naga Sadow	16	18 - 25
Darth Bandon				30
Leviathan	Hangar			28
Star Forge System	Elder Settlement	32
	Temple Main Floor	32		30 - 33
	Temple Summit		19 - 30	33 30 - 35
Star Forge	Deck 1		18	23
	Deck 2			33
	Command Center		24	30 36
	Viewing Platform			35

The chances of Force powers being resisted by enemies with natural Force Resist are as follows:

Natural	Attacker level
	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
16	60%	55%	50%	45%	40%	35%	30%	25%	20%	15%	10%	5%	0%
26	100%			95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%	30%	25%
32	100%									95%	90%	85%	80%	75%	70%	65%	60%	55%

The chances of Force powers being resisted by enemy Jedi using Force Resistance are as follows:

Force Resistance	Attacker level
	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
18	70%	65%	60%	55%	50%	45%	40%	35%	30%	25%	20%	15%	10%	5%	0%
24	100%	95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%	30%	25%	20%	15%
25	100%		95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%	30%	25%	20%
28	100%					95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%

The chances of Force powers being resisted by enemy Jedi using Force Immunity are as follows:

Force Immunity	Attacker level
	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
23	95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%	30%	25%	20%	15%	10%
28	100%					95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%	40%	35%
30	100%							95%	90%	85%	80%	75%	70%	65%	60%	55%	50%	45%
33	100%										95%	90%	85%	80%	75%	70%	65%	60%
35	100%												95%	90%	85%	80%	75%	70%
36	100%													95%	90%	85%	80%	75%

Since enemy Jedi normally only use Force Resistance or Immunity in the first round upon engaging in combat, debilitating them in that first round prevents their use, even when no longer debilitated (although this isn't always possible, if they're aware of you before you're in range to debilitate them).

However, since nothing can be done about natural Force Resist, using (Advanced) Throw Lightsaber or other attacks is recommended in all cases.