''In Nomine Satanis / Magna Veritas'' is a French TabletopRPG, or more accurately pair thereof: The first half, ''In Nomine Satanis'', is for evil campaigns, where the players play a group of demons on some nefarious plot to corrupt humans and/or kill angels; the second half, ''Magna Veritas'', is the opposite.

The game is extremely tongue-in-cheek, full of pop culture references and very fun to play.

The game, currently in its fourth edition, is no longer sold since 2006. The American ''TabletopGame/InNomine'' is derived from this game, but very different.

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!!This game provides examples of:

* CelestialBureaucracy
* CelestialParagonsAndArchangels
* CharacterClassSystem: Player abilities are greatly influenced by the Archangel or Demon Prince they serve.
* CloudCuckoolander: God himself in the third edition backstory. He's technically omniscient, but only actually knows stuff he cares about, and often doesn't bother thinking. Is currently in a french rest home to recover from all the stress of trying to run the universe. [[spoiler:Fourth edition implies that this was actually ObfuscatingStupidity to help the continuing implementation of his constantly running XanatosGambit.]]
* ContemptibleCover: The third edition rulebook, demon side, features a pentacle with "In Nomine Satanis" written in big golden letters. Written in the pentacle's circle were three satanic commandments: [[RuleOfFunny Don't walk on the opossums - Eat kiwis - Let your teeth grow]]
* CouncilOfAngels
* DeadBabyComedy : more often than not.
* DemonLordsAndArchDevils
* DepravedBisexual: Andréalphus, demon prince of Sex would be seen as such, if he wasn't actually into AnythingThatMoves (and a few things that don't).
* DivineConflict: Lucifer's rebellion against God is a key event.
* DoubleSidedBook: The third edition rulebook.
** the same goes for the fourth edition.
* DumbMuscle: Bifrons, Demon Prince of the dead, is this for TheLegionsOfHell - one of the most personally powerful and brutal of the lot, and commands legions of TheUndead to bolster Hell in addition to his demonic host, but incredibly stupid and easy to manipulate. On the angelic side, ArchangelMichael, Archangel of war, has very little skill in anything not related to kicking ass and taking names.
* ForeignRemake: ''TabletopGame/InNomine''.
* GambitPileup
* GoodIsNotNice: The ''mellowest'' of the militant Archangels come off as this; the more hardcore ones fall straight into LightIsNotGood and PureIsNotGood instead, often being intolerant, sexist or fascistic (or any combination) assholes.
* HaveYouSeenMyGod: In the third edition, God is off on a thermal cure. The fourth edition is explained by him coming back and changing the rules of the Big Game.
* HereThereWereDragons: Dragons, [[TheFairFolk fairy peoples]] and lots of other supernaturals were wiped out (or almost so), mostly by [[KnightTemplar George]] (yes, [[https://en.wikipedia.org/wiki/Saint_George_and_the_Dragon that George]], [[PureIsNotGood Archangel of Purity]], shortly after Christianity began, and not exactly for altruistic reasons. Most of the less militant (and even a few militant but more tolerant) Archangels hate his guts as a result.
* InnBetweenTheWorlds: "Chez [[{{Jesus}} Régis]]".
* JesusWasWayCool: And still is one of the nicest guys in the setting. It's been noted though that he's no more or less "son of God" than any other Archangel.
* NorseMythology : the asgardian gods appeared as a third faction in one scenario, before geting thir own supplement.
* NumberOfTheBeast: The games uses d666. 111 is the best outcome possible for angels; 666 for demons.
* PaintingTheFourthWall / SelfDeprecatingHumor : the best possible performance for the angels of Diplomacy are "Sustaining a Conversation with Croc (the game's authors)" and "Making Croc change his mind".
* PsychicPowers: Possessed by humans with enough of Adam and Eve's genes (they weren't really the first humans, see, just two picked from the lot and put in a controlled environment by God for a pet project to see if RousseauWasRight).
* RuleOfFun / RuleOfFunny : in spades
* {{Satan}}: Rules Hell and the Demon Princes, of course.
* WeAreStrugglingTogether: Both Archangels and Demon Princes are split into several bickering or even [[EnemyCivilWar outright hostile]] factions. [[spoiler:JustAsPlanned.]]
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