[[caption-width-right:200:[[KnightTemplar Witch Hunter Tyrus]] prepares to dispense some indiscriminate justice.]]

--> ''You have been told of the Inquisition; that shadowy organisation which defends Mankind and the Emperor from the perils of heresy, possession, alien dominance and rebellion.''
--> ''You have been told the Inquisition are the ultimate defence against the phantoms of fear and terror which lurk in the darkness between the stars.''
--> ''You have been told the Inquisition are the bright saviours in an eclipse of evil; purest and most devoted warriors of the Emperor.''
--> ''You have been told the Inquisition is united in its cause to rid the galaxy of any threat, from without or within.''
--> '''''Everything you have been told is a lie!'''''

A GaidenGame set in the ''TabletopGame/{{Warhammer 40000}}'' universe. ''Inquisitor'' focuses on the details of the [[StateSec Emperor's Most Holy Inquisition]], specifically the ideological schisms and [[RightHandVersusLeftHand factional infighting]] that plague that organization, and the problems that arise when two loyal Imperial servants with unlimited authority have a disagreement with each other. It's notable for providing the first real insight into the workings of the Inquisition, which was portrayed in most previous materials as being monolithic, inscrutable, and united in the face of mankind's enemies.

''Inquisitor'' is a "narrative wargame," designed more around telling stories than providing fair and balanced competition between two players, and in many ways could be considered the spiritual forefather to the first true 40k roleplaying game, ''TabletopGame/DarkHeresy''. It also served as the inspiration for the ''Literature/{{Eisenhorn}}'' series of novels by Creator/DanAbnett. The game is also notable for its miniatures, which (at 54mm scale) are approximately twice as large as a normal 40k miniature, with a correspondingly increased level of detail. Although Games Workshop no longer actively supports ''Inquisitor'', the miniatures remain available through the company's Specialist Games division, and the rulebooks and other supplementary material are [[http://www.games-workshop.com/gws/content/article.jsp?catId=cat410008&categoryId=1100014§ion=&aId=4900004 available for download]] on the GW website.

See also ''TabletopGame/{{Warhammer 40000}}'', ''Literature/{{Eisenhorn}}'', and ''Literature/{{Ravenor}}''.

!!The game provides examples of:
* BlownAcrossTheRoom and PunchedAcrossTheRoom: Characters have a "Knockback" value equal to 1/10th their Strength. If you get hit with something that does at least that much damage, you go flying or (just as often) get knocked ''down''.
* CharacterAlignment: "Puritan" Inquisitors are essentially Lawful and "Radicals" are Chaotic, but [[GreyAndGrayMorality whether they're Good or Evil rather depends on where you're standing]]. This is only a characterisation device, though, with no game mechanic to represent it -- two Puritans with conflicting agendas could perfectly easily find themselves fighting, although each [[TautologicalTemplar would probably claim the other is Radical]].
* ChunkySalsaRule: To quote the rulebook regarding [[BoomHeadshot "crippling"]] head damage -
--> Character is dead, dead, dead!
* DropTheHammer: Sample character Preacher Josef is armed with a great big honkin' warhammer as his primary weapon.
* GaidenGame: Of ''TabletopGame/{{Warhammer 40000}}''.
* GroinAttack: The groin is a targetable hit location, complete with its own set of health levels. Getting hit in the groin tends to leave characters temporarily stunned from the pain, in addition to any other ill effects they may suffer.
* GunsAkimbo: The special ability Gunfighter enables a character to fire two pistol weapons simultaneously. Unless they're ambidextrous, though, it does confer an aiming penalty to the gun being used in the character's off-hand. This skill is especially poplar for Desperado characters such as the freelance gunslinger Lucius ‘Slick’ Devlan.
* HeWhoFightsMonsters: All veteran Inquisitors run the risk of falling into this; Inquisitor {{Literature/Eisenhorn}} is the example given in the book.
* {{Hypocrite}}: Nearly everyone. It's something of a theme.
* KnifeNut: Characters with the Blademaster talent, such as the twin Death Cult Assassins Severina and Sevora, are masters of knife fighting, able to cause more damage with a knife than other characters can cause with a sword.
* KnightTemplar: The Monodominant faction of the Inquisition and the Cult of the Red Redemption, represented by sample characters Inquisitor Tyrus and Devotee Malicant respectively.
* LightningGun: The Xenarch death-arc is one of the more exotic alien weapons available to characters in the game. Produced by a mysterious race from the Northern Rim of the galaxy, the death-arc utilizes highly advanced charge cells and capacitors to fire multiple bursts of electrical energy, each of which hits as hard as a [[SniperRifle long rifle lasgun]].
* NonHumanSidekick: A few sample characters demonstrate how to include Xenos in your retinue. Official models available include a Tau Diplomat and a BountyHunter of some obscure alien species.
* ParryingBullets: The Deflect Shot talent.
* PurposelyOverpowered: Space Marines to hilarious levels, to the point where the game recommends against using them unless you're willing to put a lot of work into [[CompetitiveBalance counterbalancing the campaign]].
* RightHandVersusLeftHand: The fundamental concept behind the game.
* RuleZero: The GM is the final arbiter of everything, as is usual in an RPG.
* ShoulderCannon: The Mind Impulse Unit (MIU) allows a character to fire a gun without using their hands. Inquisitor Covenant is the most famous user of such equipment, linking the MIU to a shoulder-mounted Psycannon so that he can still fire the weapon while wielding his two-handed power sword.
* SubsystemDamage: Damage caused to a character is allocated to a random part of their body (although there are rules that alter the chance to hit various body parts or to aim at specific areas) with each body part having its own Damage Table with results that range from Light Damage (minor annoyances such as being stunned or falling over) to Crippled (ranging from going into system shock and being unable to do anything for the rest of the game, to outright death).
* TalkingIsAFreeAction: Averted during normal game-play: As with most actions, you must spend an action point to talk. You can only "say", per action, what you'd be able to say in 2-3 seconds in real life; [[MrExposition lots of]] [[InfoDump talking]] means more of actions spent. (For reference, most characters are allowed 3-4 actions per turn.) On the other hand, one may talk and perform another actions at the same time, albeit with a reduced chance of success for the other action. May be [[PlayingWithATrope played with]] during what amounts to a {{Cutscene}}.
* WideEyedIdealist: Inquisitor Covenant (by Inquisition standards, anyway).