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Kai Hagenburg

@arvelcrynyd.bsky.social
187 followers 253 following 665 posts

Indie TTRPG designer (The Dream Date, Reel To Real) & flash fiction writer. Computer vision engineer by day. I also write essays about AI with a Star Trek lens. Games + blog: arvelsarchives.com · Essays: kaihagenburg.substack.com

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Kai Hagenburg @arvelcrynyd.bsky.social · 30/09/2026
"Kai, I've heard you've written a new short story. What's it about?" "Oh, it's a very German story, I think." "How German can it be?" "Yes."
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Kai Hagenburg @arvelcrynyd.bsky.social · 30/09/2026
There‘s a new flash fiction anthology book out where I contributed a story too. It has dozens of fantastic stories as well as “The Runary Special”, a special story about loss, dedication and love. www.drivethrufiction.com/de/product/5... @storytellingco.bsky.social
drivethrufiction.com
In a Flash | Volume IV | Storytelling Collective | DriveThruFiction
A collection of flash fiction by emerging writers from around the world Flash Fiction February is one of the most exciting programs we run every year. It’s incredible to see the breadth of genre and s...
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Kai Hagenburg @arvelcrynyd.bsky.social · 19/09/2026
Had some new thoughts about "I hope this apocalypse finds you well" and thinking about how it relates to some of the stuff we've seen in AI development in the last few weeks, so here's some more thoughts about it. arvelcrynyd.itch.io/i-hope-this-...
arvelcrynyd.itch.io
How timely it has become...
I hope this apocalypse finds you well has now been released for a half a year now and it has been an incredible experience so far. Since then, I've participated in another Flash Fiction February and r...
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Kai Hagenburg @arvelcrynyd.bsky.social · 18/09/2026
There has been a review for "I hope this apocalypse finds you well" and I'm so glad people have had a good time with it and enjoyed the stories they've created with it and liked the overall theme of the game. Thank you.
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Kai Hagenburg @arvelcrynyd.bsky.social · 14/09/2026
So... I've decided to use some of my stories that I've written in those Flash Fiction February challenges and throughout the last 2 years to put on my substack. This one's called Artificial Government Efficiency. Please enjoy. kaihagenburg.substack.com/p/artificial...
kaihagenburg.substack.com
Artificial Government Efficiency
A cautionary tale
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Kai Hagenburg @arvelcrynyd.bsky.social · 23/08/2026
So happy that my game "The Dream Date" made it to the Duet Romances showcases list on the @solorpglist.com solorpglist.com/index.html
solorpglist.com
Solo RPG List - Find Solo and Duet TTRPGs
Discover amazing solo and duet tabletop role-playing games that can be played with—or without—dice, tarot cards, playing cards, pen and paper, etc.
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Kai Hagenburg @arvelcrynyd.bsky.social · 25/07/2026
Geordi LaForge asked the Enterprise computer for an opponent capable of defeating Data. The computer asked him to define permission boundaries. He said "whatever is necessary." That's how TNG got Moriarty. kaihagenburg.substack.com/p/ais-kobaya...
kaihagenburg.substack.com
AI’s Kobayashi Maru Moment — and Why OpenAI’s Security Incident Reminds Me More of Moriarty
Kirk cheated to beat an impossible test. Moriarty was created because nobody defined what victory was allowed to mean.
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Kai Hagenburg @arvelcrynyd.bsky.social · 08/07/2026
A missing child. A hunted wererat. A past that refuses to stay buried. Final Contact is a 5th-level DM's Guild one-shot for the Phandalin / Triboar region. www.dmsguild.com/en/product/3... #dnd #dmsguild
dmsguild.com
Final Contact - Dungeon Masters Guild | Dungeon Masters Guild
A missing child. A hunted wererat. A past that refuses to stay buried. Final Contact is a 5th-level one-shot adventure for the Forgotten Realms, set near the Phandalin and Triboar region. It is design...
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Kai Hagenburg @arvelcrynyd.bsky.social · 06/07/2026
I've started my own substack and in the first article I wrote about how I created my own personal manager for my own life kaihagenburg.substack.com/p/theres-no-...
kaihagenburg.substack.com
There’s no project manager for your Life
Here’s how I built one for me
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Kai Hagenburg @arvelcrynyd.bsky.social · 04/07/2026
The Dream Date is a GM-less two-person romantic comedy journaling TTRPG about three dates, complications, and whether a new romance gets another chance. www.drivethrurpg.com/en/product/5... #ttrpg #journalinggame
drivethrurpg.com
The Dream Date - Arvel's Archives | Arvel's Archives | DriveThruRPG
What is The Dream Date? The Dream Date is a GM-less two-person romantic comedy journaling TTRPG that dives into the first few weeks of a new romance. Will this be the start of a long-term relationship...
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Kai Hagenburg @arvelcrynyd.bsky.social · 02/07/2026
If you like solo journaling games, odd little formats, and TTRPGs where structure is part of the story, I made a bundle. www.drivethrurpg.com/de/product/5... #solorpg #journalinggame
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 01/07/2026
What happens after the first werewolf attack? Lycan Lockdown & Lunar Lunacy answers that with curfews, quarantine wards, testing lines, and a whole city trying (badly) to stay calm. 🚧🌕 #DnD5e #Supplement #PWYW www.drivethrurpg.com/en/product/4...
drivethrurpg.com
Lycan Lockdown & Lunar Lunacy - Dungeon Masters Guild | DriveThruRPG
When lycanthropy spreads through town, the monster hunt is only the beginning. Lycan Lockdown & Lunar Lunacy is a short Pay What You Want toolkit for running lycanthropic outbreak scenarios in a 5...
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Kai Hagenburg @arvelcrynyd.bsky.social · 27/06/2026
Three dates. Dice. One question at the end: keep going? The Dream Date is a GM-less journaling TTRPG for two — 19 pages, EN/DE, PocketQuest 2025. www.drivethrurpg.com/en/product/5... #ttrpg
drivethrurpg.com
The Dream Date - Arvel's Archives | Arvel's Archives | DriveThruRPG
What is The Dream Date? The Dream Date is a GM-less two-person romantic comedy journaling TTRPG that dives into the first few weeks of a new romance. Will this be the start of a long-term relationship...
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Kai Hagenburg @arvelcrynyd.bsky.social · 25/06/2026
Want to try a few of my standalone games in one place? The Arvel's Archive Bundle collects my DriveThruRPG indie TTRPG work into a single bundle. www.drivethrurpg.com/de/product/5... #ttrpg #indiettrpg
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 20/06/2026
A new couple. Three dates. One question: dream date, or the stuff of nightmares? The Dream Date is a two-player romantic comedy journaling game. www.drivethrurpg.com/en/product/5... #ttrpg #journalinggame
drivethrurpg.com
The Dream Date - Arvel's Archives | Arvel's Archives | DriveThruRPG
What is The Dream Date? The Dream Date is a GM-less two-person romantic comedy journaling TTRPG that dives into the first few weeks of a new romance. Will this be the start of a long-term relationship...
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Kai Hagenburg @arvelcrynyd.bsky.social · 14/06/2026
Correlation is not the same as causation
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Kai Hagenburg @arvelcrynyd.bsky.social · 13/06/2026
Your universe is gone. You have ten jumps to find a reality that can still be called home. Ten Jumps Till Eternity is a solo journaling game about multiversal escape. www.drivethrurpg.com/de/product/5... #solorpg
drivethrurpg.com
Ten Jumps Till Eternity - Arvel's Archives | Arvel's Archives | DriveThruRPG
A cataclysmic event destroys your universe. As your world is annihilated by the multiversal shockwave, you are ripped away from your own reality and thrown throughout the multiverse. As you flee the m...
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Kai Hagenburg @arvelcrynyd.bsky.social · 06/06/2026
Want lycanthropy to feel like a town crisis, not one combat encounter? Lycan Lockdown & Lunar Lunacy is an 8-page PWYW toolkit with holding-area grid PNGs. www.dmsguild.com/en/product/4... #dnd #dmsguild
dmsguild.com
Lycan Lockdown & Lunar Lunacy - Dungeon Masters Guild | Dungeon Masters Guild
When lycanthropy spreads through town, the monster hunt is only the beginning. Lycan Lockdown & Lunar Lunacy is a short Pay What You Want toolkit for running lycanthropic outbreak scenarios in a 5...
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Reposted by Kai Hagenburg
Seamus Conneely of Cannibal Halfling Gaming @cannibalhalfling.bsky.social · 01/06/2026
#PocketQuest2026 may be ending @drivethrurpg.com, but its bundles are forever - including the Solo RPGs one! You can save more than $30 and gets 18 solo/solo+ games at once (if you already bought some of them, their share is discounted as well)! www.drivethrurpg.com/en/product/5...
drivethrurpg.com
PocketQuest 2026 Solo RPGs [BUNDLE] - Seamus Conneely | DriveThruRPG
This special bundle is made up of 1 and 1+ player games created as part of PocketQuest 2026, Time Travel! For previous PocketQuest Solo Bundles, check out 2025, 2024, and 2023! Reloaded - PocketQue...
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Kai Hagenburg @arvelcrynyd.bsky.social · 30/05/2026
A top-secret work instruction. A paranormal department. A workplace apocalypse that still expects proper procedure. I Hope This Apocalypse Finds You Well is corporate horror for solo journaling play. www.drivethrurpg.com/en/product/5... #solorpg
drivethrurpg.com
I hope this apocalypse finds you well - Arvel's Archives | Arvel's Archives | DriveThruRPG
You are sitting in a cubicle in the lowest floor of the headquarters of a large corporation. A few weeks ago, you’ve seen a job search post on a business social network that you immediately replied on...
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Kai Hagenburg @arvelcrynyd.bsky.social · 27/05/2026
Please remain calm. The apocalypse has been routed through the appropriate department. I Hope This Apocalypse Finds You Well is a corporate horror solo journaling game. arvelcrynyd.itch.io/i-hope-this-... #solorpg #corporatehorror
arvelcrynyd.itch.io
I hope this apocalypse finds you well by ArvelCrynyd
A corporate horror game based on Wretched & Alone
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Kai Hagenburg @arvelcrynyd.bsky.social · 25/05/2026
The Arvel's Archive Bundle is a small shelf of standalone TTRPGs: reflective, strange, and occasionally alarming. www.drivethrurpg.com/de/product/5... #ttrpg #journalinggame
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 23/05/2026
Want to try a few of my standalone games in one place? The Arvel's Archive Bundle collects my DriveThruRPG indie TTRPG work into a single bundle. www.drivethrurpg.com/de/product/5... #ttrpg #indiettrpg
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 22/05/2026
Just finished watching today‘s Episode of For All Mankind and the immer Trekkie in me had to Smile that Bradley Thompson & David Weddle have written a SECOND banger episode named Sons and Daughters nearly 30 years after the Deep Space Nine episode
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Kai Hagenburg @arvelcrynyd.bsky.social · 20/05/2026
I made a bundle for my standalone TTRPGs. The Arvel's Archive Bundle gathers my small indie games in one DriveThruRPG package: romantic comedy, film-festival journaling, and corporate horror. www.drivethrurpg.com/de/product/5... #ttrpg #indiettrpg #drivethruttrpg
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 19/05/2026
Really sad about the prospects to cancel my trip to Bonn for #FedCon this year, since I got probably the flu since yesterday and it will probably stay for the next few days. Also sad to see that there's no way to cancel, refund or otherwise use the tickets when getting sick shortly before it. :-(
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Kai Hagenburg @arvelcrynyd.bsky.social · 18/05/2026
This year's bundle collections for #PocketQuest2026 are available right now and my game "Ten Jumps Till Eternity" is also part of this solo RPG collection that has 18 games in it.
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Kai Hagenburg @arvelcrynyd.bsky.social · 16/05/2026
If you like solo journaling games, odd little formats, and TTRPGs where structure is part of the story, I made a bundle. www.drivethrurpg.com/de/product/5... #solorpg #journalinggame
drivethrurpg.com
Arvel's Archive [BUNDLE] - Arvel's Archives | Arvel's Archives | DriveThruRPG
This special bundle contains the following titles:Reel To RealRegular price: $0.00Bundle price: $0.00Format: PDF Step into the role of The Director and run a movie festival like no othe...
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Kai Hagenburg @arvelcrynyd.bsky.social · 15/05/2026
Based upon my Lady Gaga music video scale (see here: www.dailyarvel.de?p=2161), The Dead Dance is just a 3. It did have the potential to be high on the weirdness, but only gets to a Pokerface-like weirdness... and that's even with Tim Burton as the video's director (www.youtube.com/watch?v=xGaZ...)
youtube.com
Lady Gaga - The Dead Dance (Official Music Video)
YouTube video by LadyGagaVEVO
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Kai Hagenburg @arvelcrynyd.bsky.social · 13/05/2026
I make games about dates, movies, office paperwork, and collapsing universes. Sensible catalog strategy, really. They're now bundled on DriveThruRPG. www.drivethrurpg.com/de/product/5... #indiettrpg #solorpg
drivethrurpg.com
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Reposted by Kai Hagenburg
Yarwanaw @yarwanaw.bsky.social · 12/05/2026
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Kai Hagenburg @arvelcrynyd.bsky.social · 11/05/2026
Your universe is gone. You have ten jumps to find a reality that can still be called home. Ten Jumps Till Eternity is a solo journaling game about multiversal escape. www.drivethrurpg.com/de/product/5... #solorpg
drivethrurpg.com
Ten Jumps Till Eternity - Arvel's Archives | Arvel's Archives | DriveThruRPG
A cataclysmic event destroys your universe. As your world is annihilated by the multiversal shockwave, you are ripped away from your own reality and thrown throughout the multiverse. As you flee the m...
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Kai Hagenburg @arvelcrynyd.bsky.social · 09/05/2026
In Ten Jumps Till Eternity, home keeps changing: a different photo, a wrong room, a life that is almost yours. A solo journaling game about ten jumps through nearby universes. www.drivethrurpg.com/de/product/5... #solorpg #solojournaling
drivethrurpg.com
Ten Jumps Till Eternity - Arvel's Archives | Arvel's Archives | DriveThruRPG
A cataclysmic event destroys your universe. As your world is annihilated by the multiversal shockwave, you are ripped away from your own reality and thrown throughout the multiverse. As you flee the m...
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Reposted by Kai Hagenburg
SoloRPGList @solorpglist.com · 06/05/2026
New to the #SoloRPG List: Ten Jumps Till Eternity by @arvelcrynyd.bsky.social A solo journaling game about finding your identity inside the multiverse. #PocketQuest LINKY: solorpglist.com/search.php?i...
Cover for the solo TTRPG: Ten Jumps til Eternity - a solo journaling game about finding your identity inside the multiverse. A faded image of a nebula with a bright burst of light and a silhouette of a human jumping from small numbered spheres that are loosely stacked like a pyramid
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Kai Hagenburg @arvelcrynyd.bsky.social · 04/05/2026
Out now! My contribution to this year's #PocketQuest is Ten Jumps Till Eternity. A cataclysmic event has destroyed your universe and you are being thrown through multiple timelines as you deduce the small changes that happened to you and your surroundings. www.drivethrurpg.com/de/product/5...
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Kai Hagenburg @arvelcrynyd.bsky.social · 04/05/2026
POV: Du weisst nicht, was ein Vibe-Check ist...
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Kai Hagenburg @arvelcrynyd.bsky.social · 03/05/2026
I'm wondering why *this* topic is basically non-existant in German news coverage www.politico.eu/article/eu-l...
politico.eu
EU legislators fail to clinch deal to delay AI law
Talks derailed over request backed by Germany to weaken rules for manufacturing and medical devices.
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Kai Hagenburg @arvelcrynyd.bsky.social · 01/05/2026
Need a compact Phandalin-area side quest with moral tension? Final Contact is a 5th-level wererat story about guilt, revenge, mercy, and judgment. www.dmsguild.com/en/product/3... #dnd #dmsguild
dmsguild.com
Final Contact - Dungeon Masters Guild | Dungeon Masters Guild
A missing child. A hunted wererat. A past that refuses to stay buried. Final Contact is a 5th-level one-shot adventure for the Forgotten Realms, set near the Phandalin and Triboar region. It is design...
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Kai Hagenburg @arvelcrynyd.bsky.social · 29/04/2026
Right now, I kinda feel the post-Deadline void coming up to some degree, as I'm looking forward to the upcoming release of "Ten Jumps Till Eternity" some time next week that I wrote as part of this years Pocketquest challenge.
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Reposted by Kai Hagenburg
Picard Tips @picardtips.bsky.social · 28/04/2026
Picard science tip: The universal translator is not the end of linguistics. The replicator is not the end of chemistry. Keep going.
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Kai Hagenburg @arvelcrynyd.bsky.social · 27/04/2026
It's really interesting to see that over the span of one year, I've published *four* small TTRPG journaling games. I remember how nervous and nerve-wrecked I was when I published my first D&D adventure module in December 2020 and now I've basically streamlined the ...
drivethrurpg.com
The Dream Date - Arvel's Archives | Arvel's Archives | DriveThruRPG
What is The Dream Date? The Dream Date is a GM-less two-person romantic comedy journaling TTRPG that dives into the first few weeks of a new romance. Will this be the start of a long-term relationship...
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Kai Hagenburg @arvelcrynyd.bsky.social · 24/04/2026
Since it'll take a few days until the release of my new game "Ten Jumps Till Eternity", there's a small heads up from the game manual that dives into the lore backstory and what happens to your character... expect the unexpected
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Kai Hagenburg @arvelcrynyd.bsky.social · 22/04/2026
So... I've finally managed to layout one of the playthroughs for my new game "Ten Jumps Till Eternity". In this version I've cut out all rule explanations and only took the story parts... and I wasn't initially aware how emotionally gripping those stories could become.
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Kai Hagenburg @arvelcrynyd.bsky.social · 21/04/2026
Had to go back to a more hopeful idea of an AI future…
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Kai Hagenburg @arvelcrynyd.bsky.social · 21/04/2026
So... Storytime: I'm about to release my newest small mini-solo journaling TTRPG named "Ten Jumps Till Eternity" in a few weeks. It's been something brewing in my head for a few months now and initially I didn't wanted to participate in the PocketQuest this year, ...
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Kai Hagenburg @arvelcrynyd.bsky.social · 19/04/2026
At the beginning of the week I wasn't sure I was able to finish in time, but now it seems like I'm mostly camera-ready. And as previously mentioned, it'll be titled "Ten Jumps Till Eternity". It's a solo journaling game about finding your identity within the multiverse.
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Kai Hagenburg @arvelcrynyd.bsky.social · 17/04/2026
So... Did some cover work today and yeah, I hope it's ok for now. So... without further ado...
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Kai Hagenburg @arvelcrynyd.bsky.social · 14/04/2026
A little bit more about that new game that I write, "Ten Jumps Till Eternity". It started off from an idea to have TTRPG Rogue-like game with room exploration mechanics similar to Blue Prints & basically has become a story generator for character development stories reminding of Ship of Theseus.
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Kai Hagenburg @arvelcrynyd.bsky.social · 13/04/2026
For a moment I thought that was Cool Greg... and then i realized that's the former MP of Canada...
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Kai Hagenburg @arvelcrynyd.bsky.social · 12/04/2026
So there's been something brewing in recent weeks. I've been busy writing my fourth game now and it's called "Ten Jumps Till Eternity". I've finished the main writing, done my first playtest on Friday and I hope I'll have the layout done by next week. So yeah. Hope to finish soon. #Pocketquest2026
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