
Show overview
Dastardly Decimal System has been publishing since 2022, and across the 4 years since has built a catalogue of 92 episodes, alongside 37 trailers or bonus episodes. That works out to roughly 20 hours of audio in total. Releases follow a fortnightly cadence.
Episodes typically run ten to twenty minutes — most land between 2 min and 20 min — with run-times ranging widely across the catalogue. None of the episodes are flagged explicit by the publisher. It is catalogued as a EN-language Leisure show.
The show is actively publishing — the most recent episode landed 3 weeks ago, with 14 episodes already out so far this year. The busiest year was 2025, with 32 episodes published. Published by Larry Gent.
From the publisher
Castor Cain, a student of villainy, is the librarian for the largest collection of tomes and scroll about the greatest evil in all the Dungeon and Dragon multiverse.
Latest Episodes
View all 92 episodesLibrary Card Catalog: Ep 53
And Another Thing.....Sapphire Dragons
Episode 53: The Blades of the Sword Collector

Library Card Catalog: Ep 52
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

And Another Thing.....Ekun and Myst
bonusSometimes there are facts or details that just don't fit into the regular story. The Lore Junky in me won't let me forget it. So in those moments we turn to AND ANOTHER THING...Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Spaghetti Eastern” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 52Episode 52: The Businessess of the Bronzeknuckle Brothers
The librarian Castor Cain, and Vega the cat, travel to the Foreign Quarter and study the Dwarven Crime Empire run by the infamous Bronzeknuckle Brothers.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Dwarven Protection TeaSetting: D&D (Any)Music was “Mind Maze" by kave msri from Pixabay. Licensed under the creative commonsCredit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 51
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

And Another Thing.....The Warden of Revel's End
bonusSometimes there are facts or details that just don't fit into the regular story. The Lore Junky in me won't let me forget it. So in those moments we turn to AND ANOTHER THING...Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Spaghetti Eastern” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 51Episode 51: The Sentence of Prisoner 13
The librarian Castor Cain, and Vega the cat, bundle up once again to travel to the frigid ice-land known as Icewind Dale. There they enter the infamous Revel's End prison to located Prisoner 13Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Thief TeaSetting: D&D (Forgotten Realms)Music was “Dama-May - Primal Drive" by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. Located at incompetech.com/ Licensed under the creative commonsCredit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 50
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

And Another Thing.....The Giver of Eternity
bonusSometimes there are facts or details that just don't fit into the regular story. The Lore Junky in me won't let me forget it. So in those moments we turn to AND ANOTHER THING...Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Spaghetti Eastern” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 50Episode 50: The Onyx Tower Duology Part 2 - Mordoc
The librarian Castor Cain, and Vega the cat, return to the violent history of Baldur's Gate. There, they look at the King of Vampire who moved in and tried to destroy the entire city. We look at Mordoc SaLanmerePart 2 of the Onyx Tower DuologyDastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Dark Lord TeaSetting: D&D (Forgotten Realms)Music was “Deluge” by Agera Beatz from Pixabay. Licensed under the creative commonsCredit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 49
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 49Episode 49: The Onyx Tower Duology Part 1 - Eldrith The Betrayer
The librarian Castor Cain, and Vega the cat, return to the violent history of Baldur's Gate. There, they look at the undefeated General who turned on the very city she once tried to protect. We look at Eldrith, The BetrayerPart 1 of the Onyx Tower DuologyDastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Soldier TeaSetting: D&D (Forgotten Realms)Music was “Chromatic” by Amir Firouzfard from Pixabay. Licensed under the creative commonsCredit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 48
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentMusic was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcastPatreon: DastardlyDecimalSystemLooking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 48Episode 48: The Christmas Celebration of Evil Gods
The librarian Castor Cain puts on a red jacket, a red hat and get violently scratched for trying to put antlers onto Vega the Cat. They do this to celebrate the holidays on their worlds and others. They take a look at the Christmas Celebration of the Evil GodsDastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Santa's Secret TeaSetting: D&D (Forgotten Realms, Eberron, Greyhawk)Music was “Canon and Variation” by Twin Musicom from Youtube Audio. Licensed under a Creative Commons Attribution 4.0 license.Credit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcast Patreon: DastardlyDecimalSystem Looking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 47
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry Gent Music was “Soothsayer” by John Patitucci from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcast Patreon: DastardlyDecimalSystem Looking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 47Episode 47: The Invasions of Akar Kessel
The librarian Castor Cain, and Vega the cat, voyage up north as they look in to the history of Icedwind Dale. There they begin a long investigation into the various wielders of the Crystal Shard. They start with the evil wizard who nearly conquered Ten-Towns: Akar kesselDastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Snowball Fight TeaSetting: D&D (Forgotten Realms)Music was ““Ghosts of Winter” by Dream-Protocol from Pixabay. Licensed under the creative commonsCredit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcast Patreon: DastardlyDecimalSystem Looking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

Library Card Catalog: Ep 46
bonusEach month we look at a different villain, many of which have links to past topics. So these bonus episodes will help you quickly and easily find those linking episodes.Dastardly Decimal System Resources:Voice of Castor Cain: Larry Gent Music was “Violet Vape” by CHEEL from Youtube Audio. License under the Creative CommonsFollow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcast Patreon: DastardlyDecimalSystem Looking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]

S1 Ep 46Episode 46: The Hate of Larsa Essinel
The librarian Castor Cain, and Vega the cat, welcome a guest to the library. This man is readying to fight a dragon but needs to know if his new ally is trustworthy. The trio share some tea as they discuss Larsa Essinel, the Dragon Assassin!Dastardly Decimal System Resources:Voice of Castor Cain: Larry GentVoice of Vega: Vash and ZidEpisode Tea: Black Dragon TeaSetting: D&D (Dungeon #118)Music was “Spooked” by Mini Vandals from Youtube Audio. Licensed under Creative Commons:Credit Music: “Deep State" Music by Vans in Japan from Youtube. Licensed under Creative Commons:Follow us onTwitter: @ddsystempodcastInstagram: @ddsystempodcastTiktok: @dastardlydecimalsYoutube: @ddsystempodcastBlueSky: @ddsytempodcast Patreon: DastardlyDecimalSystem Looking to sponsor an episode, suggest a tea or just say hi? Reach out at [email protected]