This is Pathfinder: Kingmaker mod.

It introduces new classes:

• Hunter with following archetypes: Divine Hunter, Forester, Primal Companion Hunter, and Feykiller,
• Witch with with following archetypes: Ley Line Guardian, Hedge Witch, Hex Channeler and Winter Witch,
• Bloodrager with following archetypes: Metamagic Rager, Spelleater, Steelblood and Urban Bloodrager,
• Skald with following archetypes: Urban Skald, Herald of the Horn, War Drummer and Court Poet,
• Warpriest with following archetypes: Sacred Fist, Cult Leader and Champion of the Faith,
• Shaman with following archetypes: Overseer, Speaker for the Past, Witch Doctor and Spirit Warden,
• Arcanist with following archetypes: School Savant, Blood Arcanist, Unlettered Arcanist and Occultist,
• Oracle with following archetypes: Seeker, Spirit Guide, Warsighted,
• Investigator with following archetypes: Empiricist, Jinyiwey, Questioner,
• Summoner with following archetypes: Devil Binder, Fey Caller, Naturalist and Master Summoner,
• Hinterlander and Holy Vindicator prestige classes.

New Archetypes for existing classes:

• Vindictive Bastard Paladin archetype (implemented as a separate class),
• Arrowsong Minstrel Bard archetype,
• Spirit Whisperer Wizard archetype,
• Storm Druid Druid archetype,
• Evangelist Cleric archetype,
• Primal Bloodline Wildblooded Sorcerer archetype,
• Untamed Rager Barbarian archetype,
• Nature-Bonded Magus Magus archetype,
• Ninja class (implemented as rogue archetype).

Regarding skald mechanics: it is different from pnp in the fact that it allows other classes to stack their rages (with bonuses and rage powers) with skald Inspiring Rage. Also an ability was added to reject rage either from skald Inspired Rage, Inspire Ferocity or Rage Spell; everyone should get it at lvl 1.

New feats:

• Extra Hex,
• Accursed Hex,
• Amplified Hex,
• Split Hex and Split Major Hex,
• Witch Knife,
• Rage Casting,
• Raging Brutality,
• Blooded Arcane Strike,
• Riving Strike,
• Feral Combat Training,
• Furious Focus,
• Felling Smash,
• Strike True,
• Artful Dodge,
• Osyluth Guile,
• Devastating Strike,
• Weapon of The Chosen, Improved Weapon of the Chosen, Greater Weapon of the Chosen,
• Planar Wild Shape,
• Powerful Shape,
• Skald's Vigor and Greater Skald's Vigor,
• Discordant Voice,
• Stalwart and Improved Stalwart,
• Quick Channel,
• Channel Smite,
• Channeling Scourge,
• Versatile Channeler,
• Deadeye's Blessing,
• Guided Hand,
• Spell Bane,
• Planar Focus,
• Weapon Shift, Improved Weapon Shift, Greater Weapon Shift,
• Coordinated Shot,
• Distracting Charge,
• Target of Opportunity,
• Swarm Scatter,
• Bonded Mind and Share Spell,
• Extended Bane,
• Broken Wing Gambit,
• Hurtful,
• Dazing Assault,
• Stunning Assault,
• Unsanctioned Knowledge,
• Linnorm Style, Linnorm Vengeance, Linnorm Wrath,
• Jabbing Style, Jabbing Dancer, Jabbing Master,
• Lesser Spell Synthesis,
• Extra Spell Synthesis,
• Dazing Spell,
• Intensified Spell,
• Persistent Spell,
• Piercing Spell,
• Rime Spell,
• Toppling Spell,
• Elemental Spell,
• Selective Spell,
• Spontaneous Metafocus,
• Spell Perfection,
• Mage's Tattoo,
• Quicken Blessing,
• Extra Reservoir,
• Extra Exploit,
• Extra Revelation,
• Extra Investigator Talent,
• Extra Inspiration,
• Extra Evolution,
• Snap Shot, Improved Snap Shot, Greater Snap Shot,
• Dervish Dance,
• Evolved Companion.

New rage powers:

• Terrifying Howl
• Taunting Stance,
• Unrestrained Rage,
• Quick Reflexes,
• Superstition,
• Ghost Rager,
• Witch Hunter,
• Energy Resistance,
• Atavism Totem Lesser,
• Atavism Totem,
• Atavism Totem Greater,
• Spirit Totem, Lesser,
• Spirit Totem,
• Spirit Totem, Greater,
• Celestial Totem, Lesser,
• Celestial Totem,
• Celestial Totem, Greater,
• Daemon Totem, Lesser,
• Daemon Totem,
• Daemon Totem, Greater.

New features:

• Share Spell for animal companions,
• Druids can use armor while in wild shape (optional),
• Animal companions can now equip headgear, belts, bracers, capes and amulets,
• Rerolls (due to Bit of Luck and similar abilities) are now shown in the battle log,
• Animal companions now level up manually,
• Dismissable area effect spells.

The mod also adds following inquisitions that can be selected instead of domains:

• Anger,
• Conversion,
• Heresy,
• Imprisonment,
• Persistence,
• Tactics,
• Valor.

New Wild Talents:

• Blade Rush,
• Kinetic Whip,
• Whip Hurricane.

New Rogue Talents:

• Minor Magic,
• Major Magic,
• Feat.

New Magus Arcana:

• Familiar,
• Maneuver Mastery,
• Spell Blending.

Bloodline Mutations:

• Blood Havoc,
• Blood Intensity,
• Bloodline Familiar.

New spells:

• Blade Lash,
• Command and Command, Greater,
• Chill Touch,
• Dazzling Blade and Dazzling Blade, Greater,
• Frostbite,
• Hex Vulnerability,
• Ill Omen,
• Lend Judgment and Lend Judgment, Greater,
• Life Conduit, Life Conduit, Improved and Life Conduit, Greater,
• Long Arm,
• Magic Weapon, Magic Weapon, Greater
• Obscuring Mist,
• Produce Flame,
• Rejuvenate Eidolon, Lesser, Rejuvenate Eidolon and Rejuvenate Eidolon, Greater,
• Sanctuary,
• Sense Spirit Magic,
• Shillelagh,
• Spirit Call,
• Bladed Dash and Bladed Dash, Greater,
• Blistering Invective,
• Aggressive Thundercloud and Aggressive Thundercloud, Greater,
• Blood Armor,
• Bone Fists,
• Burst of Radiance,
• Evolution Surge, Lesser, Evolution Surge and Evolution Surge, Greater,
• Fiery Runes,
• Flame Blade,
• Flames of the Faithful,
• Flurry of Snowballs,
• Force Sword,
• Ghost Touch,
• Ice Slick,
• Path of Glory and Path of Glory, Greater,
• Invisibility Purge,
• Righteous Vigor,
• Savage Maw,
• Stricken Heart,
• Vine Strike,
• Winter's Grasp,
• Accursed Glare,
• Burning Entanglement,
• Countless Eyes,
• Deadly Juggernaut,
• Earth Tremor,
• Flame Arrow,
• Flashfire,
• Halt Undead,
• Threefold Aspect,
• Sands of Time,
• Wall of Nausea,
• Fly and Fly, Mass,
• Font of Spirit Magic,
• Howling Agony,
• Keen Edge,
• Resinous Skin,
• Sheet Lightning,
• Sleet Storm,
• Stunning Barrier, Greater,
• Air Walk and Air Walk, Communal,
• Archon's Trumpet,
• Aura of Doom,
• Explosion of Rot,
• Fire Shield,
• Fleshworm Infestation,
• Forceful Strike,
• Rebuke,
• Rigor Mortis,
• River of Wind,
• Solid Fog,
• Spite,
• Thirsting Entanglement,
• Virtuoso Performance,
• Wall of Fire,
• Wall of Blindness,
• Overland Flight,
• Tidal Surge,
• Suffocate,
• Contingency,
• Curse, Major,
• Fire Seeds,
• Fluid Form,
• Freezing Sphere,
• Poison Breath,
• Plant Shape I, II and III,
• Ice Body,
• Wind Walk,
• Giant Form I and II,
• Control Undead,
• Hold Person, Mass,
• Particulate Form,
• Blood Mist,
• Incendiary Cloud,
• Irresistible Dance,
• Temporal Stasis,
• Meteor Swarm,
• Hold Monster, Mass,
• Shapechange,
• Suffocate Mass,
• Time Stop,
• Winds of Vengeance.

Beast shape I - IV spells were also changed to be a bit more fun and more in line with pnp:

• Beast shape I allows to turn into wolf and leopard,
• Beast shape II allows to turn into large bear (without rend) and large dire wolf (with trip),
• Beast shape III allows to turn into large smilodon and Huge mastodon (with trample),
• Beast shape IV allows to turn into large hodag (with toss) and large winter wolf (with trip and breath weapon)

The changes corresponding to these spells as well as Plant Shape I, II and III were also applied to druid wildshape ability.

In addition mod also makes some changes to existing features to make them closer to pnp:

• nerfs animal compnions to make their stats same as in pnp : reduces physical prowess bonuses by factor of 2, natural ac bonuses by 1.5, and removes enchanced attacks,
• sets base skill points of every classes to 1/2 of pnp value (as per consolidated skill rules), and gives bonus skill points to humans and half-orcs only at even levels, since most skills in the game correspond to 2 skills in pnp (optional),
• replaces favored enemy for Sacred Huntsmaster with animal focus as per pnp (optional),
• fixes Magic Vestment spell to work as per pnp rules,
• Rangers now should get improvement of their favored terrain bonuses,
• Legendary proportions increases size by only one category and changes Natural Armor bonus to untyped (instead of enchancement),
• Animal Growth properly increases size of animal companion,
• Barbarian Increased Damage Reduction rage power works only during rage, same for Stalwart Defender,
• Empyreal Sorcerer Channel Energy ability depends now on Wisdom rather than Charisma,
• Channel Energy dc no longer scales with character level, but with class level that gave access to it.
• all flying creatures are immune to difficult terrain and ground based buff effects and also receive +3 dodge melee ac bonus against non-flying creatures,
• Fiery Body and Angelic Aspects now also give ability to fly,
• flails and heavy flails critical multiplier was changed to x3 to compensate for missing trip and disarm properties (optional),
• medium range for spells was increased to 60 ft, long range to 100 ft,
• weapon swap consumes move action instead of standard,
• spell casting is not forbidden while in elemental form (optional),
• allied spellcaster now should additionally give +1 cl and +2 spell penetration if adjacent with this feat teammates have the same spell available (optional)
• changes range of Wail of Banshee and Polar Midnight to medium (since by the time you can cast these spells in pnp the range will be around 65 ft),
• fixes ecclesitheurge to be as per pnp rules (no bonus skill point, no channel energy damage increase at level 3) (optional),
• when using kinetic healer ability, burn cost can be optionally offloaded to the target,
• Kineticists now receive internal buffer ability (as in pnp),
• Kineticists blast abilities type is changed to spell-like,
• Kinetic Knights now receive Blade Rush infusion at level 3, Kinetic Whip infusion at level 5, Whip Hurricane infusion at level 11 and Swift Blade Rush infusion at level 13 for free,
• When using burn to improve water shroud ac bonus, kinetic knight increases enchantment bonus of his armor or shield instead of raw armor/shield bonuses,
• Increased damage reduction defensive power increases dr by 2 instead of 1 to make it similar to unchained barbarian rage power,
• Acid Fog spell effect was changed to work as in pnp,
• Mystic Theurge now receives spell synthesis ability at level 10,
• Vital Strike now works with ranged attacks,
• Sylvan Sorcerer druid level for animal companion progression is equal to his class level - 3 (min 1),
• Empyreal sorceror no longer receives wings,
• Celestial Sorcerer receives wings at lvl 9 and does not receive heavenly aura,
• Abyssal bloodline sorcerer no longer receives wings,
• Arcane bloodline combat casting was replaced with metamagic adept as per pnp rules,
• Combat Trick rogue talent can not be taken more than once,
• True Seeing allows to see through illusion concealement.

Original game bug fixes:

• Vital Strike now takes standard action and extra damage dice are no longer multplied on critical hits,
• Singing Steel works properly,
• Archaelogist luck works with Lingering Performance and Singing Steel,
• Lingering Performance no longer allows to overlap different bardic performances,
• Dragonkind I dragons bite and claw weapon are placed in main/off hand slots (so they can benefit from haste and feral combat training),
• Web school is changed to conjuration
• radius of teamwork feats that require "adjacent" allies changed to 5 feet (instead of 5 meters) (optional)
• Invulnerable rager extreme endurance bonus no longer scales exponentially,
• Characters receive slam proficiency, that allows them to pick corresponding weapon focus and similar feats,
• Fixed incorrect calculation of burn cost for kinetic blade and blade whirlwind abilities,
• Polymorph no longer puts a lock on inventory slots (they still stay inaccessible though) to avoid preventing temporary weapons and limbs from removal when corresponding buffs expire, as a side effect it also allows to loot body under baleful polymorph.
• Fixed issue where certain domains (mostly for druids) did not allow to use non-domain spells if they had lower level than that on domain list (respec is required),
• Fixed missing druid scaling on 1st level Weather domain ability.

Mod also changes stats of some npcs (optional)

• Valerie class was changed to Vindictive Bastard and stats to 18/10/14/13/10/15
• Harrim class was changed to Warpriest and stats to 17/10/14/10/17/8
• Amiri archetype was changed to Invulnerable Rager and her stats to 19/14/16/10/12/8
• Ekun to 14/18/10/10/14/8
• Tristian to 10/14/12/10/19/14 and replaces his primary domain to fire
• Linzi to 9/17/12/14/10/18
• Octavia to 10/16/10/18/10/14
• Regongar to 19/12/12/10/8/16
• Nok-Nok to 9/22/14/12/10/8

NOTE: Changes to npc companions, and class skill points and some others are optional and can be disabled (set corresponding values to false, in your_game_folder/Mods/CallOfTheWild/settings.json)

Install

• Download and install Unity Mod Manager 0.13.0 or later
• Download the mod
• Build it using Visual Studio 2017 Community Edition or use prebuilt binaries from latest Releases (just drop archive into UMM GUI)
• Run the game

Big thanks to Nolanoth for providing new icons for the mod.