Arrhenius
@arrhenius.bsky.social
He/Him. Official Bluesky account for Arrhenius, the #ttrpg set 100,000 years in the future during the next Ice Age.
Available now! https://jesseharlin.itch.io/arrhenius
https://www.drivethrurpg.com/en/product/476741/arrhenius-an-icecore-roleplaying-game
Available now! https://jesseharlin.itch.io/arrhenius
https://www.drivethrurpg.com/en/product/476741/arrhenius-an-icecore-roleplaying-game
Pinned
Arrhenius
@arrhenius.bsky.social
· Jul 10
ARRHENIUS by Dungeonteller
A Far-Future Ice Age TTRPG Set in the Year 100,000
jesseharlin.itch.io
New York’s hottest #ttrpg is Arrhenius. IT. HAS. EVERYTHING.
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
Loved the new #Frankenstein flick on Netflix.
Sneaking in some pencil time while I do laundry.
WIP. Detail.
Prismacolor Verithin pencil over watercolor wash on Canson paper.
#Frankenstein #Illustration
WIP. Detail.
Prismacolor Verithin pencil over watercolor wash on Canson paper.
#Frankenstein #Illustration
November 10, 2025 at 5:08 AM
Loved the new #Frankenstein flick on Netflix.
Public Service Announcement
If you ever notice a weird lack of skull faced men in your feed, you know something’s gone wrong! 🥲
That's upsetting, I really like your art! I'm glad I'm not following that block list
November 9, 2025 at 7:27 PM
Public Service Announcement
Reposted by Arrhenius
Mamdani is going to implement Shar Law. Everyone will have to bow down to the Mistress of the Night, the Lady of Loss, and devote themselves to bringing about a darkness that will smother her hated foe and sister Selûne
Mamdani is going to implement My Sharona law. Everyone will have to create songs with undeniable rock beats.
Mamdani is going to implement Shari Lewis law.
Everyone will be required to stick their fist up a lamb's a
Excuse me, there's someone at the door.
Everyone will be required to stick their fist up a lamb's a
Excuse me, there's someone at the door.
November 9, 2025 at 2:39 AM
Mamdani is going to implement Shar Law. Everyone will have to bow down to the Mistress of the Night, the Lady of Loss, and devote themselves to bringing about a darkness that will smother her hated foe and sister Selûne
Why, it's November 8th! You know what that means. It's the time of year when I ask if there are any #ttrpg #reviewers who might be interested in checking out #Arrhenius! If you're looking for new titles to review, I'm happy to send you a free review copy.
November 8, 2025 at 11:32 PM
Why, it's November 8th! You know what that means. It's the time of year when I ask if there are any #ttrpg #reviewers who might be interested in checking out #Arrhenius! If you're looking for new titles to review, I'm happy to send you a free review copy.
Reposted by Arrhenius
Bibble-cly accurate Frylock Sketch
[ twitch.tv/genczilla ]
[ twitch.tv/genczilla ]
November 6, 2025 at 10:36 PM
Bibble-cly accurate Frylock Sketch
[ twitch.tv/genczilla ]
[ twitch.tv/genczilla ]
I've always felt disappointed that when people agree by saying "here, here!" it isn't spelled "hear here!" as if to say "Listen up, y'all! Truth is being spoken over in this vicinity!"
November 6, 2025 at 3:29 AM
I've always felt disappointed that when people agree by saying "here, here!" it isn't spelled "hear here!" as if to say "Listen up, y'all! Truth is being spoken over in this vicinity!"
Reposted by Arrhenius
My least favorite internetism lately is "it's not that deep."
People use it mean "you're overthinking this," but it reads as dismissive of reading between the lines, questioning narratives, or just seeking more info.
Intellectual incuriosity sucks. Actively discouraging curiosity sucks harder.
People use it mean "you're overthinking this," but it reads as dismissive of reading between the lines, questioning narratives, or just seeking more info.
Intellectual incuriosity sucks. Actively discouraging curiosity sucks harder.
November 6, 2025 at 12:30 AM
My least favorite internetism lately is "it's not that deep."
People use it mean "you're overthinking this," but it reads as dismissive of reading between the lines, questioning narratives, or just seeking more info.
Intellectual incuriosity sucks. Actively discouraging curiosity sucks harder.
People use it mean "you're overthinking this," but it reads as dismissive of reading between the lines, questioning narratives, or just seeking more info.
Intellectual incuriosity sucks. Actively discouraging curiosity sucks harder.
For the last three days, the number of views to #Arrhenius' itch page has doubled each day. At this rate, I'll have over 500 million page views a day by next month!
(That's how this all works, right?)
jesseharlin.itch.io/arrhenius
(That's how this all works, right?)
jesseharlin.itch.io/arrhenius
November 6, 2025 at 12:08 AM
For the last three days, the number of views to #Arrhenius' itch page has doubled each day. At this rate, I'll have over 500 million page views a day by next month!
(That's how this all works, right?)
jesseharlin.itch.io/arrhenius
(That's how this all works, right?)
jesseharlin.itch.io/arrhenius
r/rpg is killing me this morning. There's 4 different threads asking for #ttrpg recommendations essentially all asking "Is there a game just like Arrhenius?" but I can't suggest it due to their self-promotion rules.
Marketing is hard & I don't know what I'm doing. Thanks for coming to my TED talk.
Marketing is hard & I don't know what I'm doing. Thanks for coming to my TED talk.
November 5, 2025 at 5:57 PM
r/rpg is killing me this morning. There's 4 different threads asking for #ttrpg recommendations essentially all asking "Is there a game just like Arrhenius?" but I can't suggest it due to their self-promotion rules.
Marketing is hard & I don't know what I'm doing. Thanks for coming to my TED talk.
Marketing is hard & I don't know what I'm doing. Thanks for coming to my TED talk.
#Arrhenius is on sale over at itch. If you're looking for some light post-apocalyptic climate disaster reading while Western society collapses, it's pretty cheap right now!
A sale by Dungeonteller, 50% off ARRHENIUS
itch.io/s/166582/hal...
itch.io/s/166582/hal...
ARRHENIUS | Halloween Sale 2025 by Dungeonteller
A sale by Dungeonteller, 50% off ARRHENIUS
itch.io
October 31, 2025 at 8:31 PM
#Arrhenius is on sale over at itch. If you're looking for some light post-apocalyptic climate disaster reading while Western society collapses, it's pretty cheap right now!
If you’ve checked out #Arrhenius, have you made a character yet? Tell me about them! I’d love to hear what you’ve cooked up!
And if you need help making a character let me know. I’m happy to help!
And if you need help making a character let me know. I’m happy to help!
October 24, 2025 at 10:52 PM
If you’ve checked out #Arrhenius, have you made a character yet? Tell me about them! I’d love to hear what you’ve cooked up!
And if you need help making a character let me know. I’m happy to help!
And if you need help making a character let me know. I’m happy to help!
Reposted by Arrhenius
It’s #portfolioday ?
I’m Drew I make genrefiction illustrations, get in touch for book covers, ttrpg art and personal commissions!
I’m Drew I make genrefiction illustrations, get in touch for book covers, ttrpg art and personal commissions!
October 14, 2025 at 7:02 PM
It’s #portfolioday ?
I’m Drew I make genrefiction illustrations, get in touch for book covers, ttrpg art and personal commissions!
I’m Drew I make genrefiction illustrations, get in touch for book covers, ttrpg art and personal commissions!
Reposted by Arrhenius
New York’s hottest #ttrpg is Arrhenius. IT. HAS. EVERYTHING.
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
ARRHENIUS by Dungeonteller
A Far-Future Ice Age TTRPG Set in the Year 100,000
jesseharlin.itch.io
July 10, 2025 at 3:47 AM
New York’s hottest #ttrpg is Arrhenius. IT. HAS. EVERYTHING.
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
✅Exploding dice
✅Psychotropic eel poop
✅Feral AI
✅Human snowpants
(What’s “human snowpants”?)
It’s that thing of when a robot decides it isn’t human enough so it skins you and wears it out on the glaciers.
jesseharlin.itch.io/arrhenius
We all need some escapism right now. Set your time dilators to the year 100,000 and experience the world of #Arrhenius!
Core rulebook and FREE Quick Start Guide available now for:
• PDF: jesseharlin.itch.io/arrhenius
• PDF or Print on Demand: www.drivethrurpg.com/en/product/4...
Core rulebook and FREE Quick Start Guide available now for:
• PDF: jesseharlin.itch.io/arrhenius
• PDF or Print on Demand: www.drivethrurpg.com/en/product/4...
ARRHENIUS | AVAILABLE NOW! | An Icecore Roleplaying Game
YouTube video by Dungeonteller
www.youtube.com
October 8, 2025 at 5:00 PM
We all need some escapism right now. Set your time dilators to the year 100,000 and experience the world of #Arrhenius!
Core rulebook and FREE Quick Start Guide available now for:
• PDF: jesseharlin.itch.io/arrhenius
• PDF or Print on Demand: www.drivethrurpg.com/en/product/4...
Core rulebook and FREE Quick Start Guide available now for:
• PDF: jesseharlin.itch.io/arrhenius
• PDF or Print on Demand: www.drivethrurpg.com/en/product/4...
Reposted by Arrhenius
#DnD players: somewhere against yet another goblin horde, the thought popped into your head and now? It lingers there, tempting you every time you touch your dice. The spark is gone. Your heart is wandering.
"I wonder what #indie #ttrpgs are like?"
We get it. You're try-curious. Go on; be bad.
"I wonder what #indie #ttrpgs are like?"
We get it. You're try-curious. Go on; be bad.
ARRHENIUS by Dungeonteller
A Far-Future Ice Age TTRPG Set in the Year 100,000
jesseharlin.itch.io
October 4, 2025 at 6:57 PM
Reposted by Arrhenius
Trying to launch yourself into the TTRPG space?
Join the Rising Tide discord! 🌊🙌
We have monthly AMAs with industry pros, weekly support meetings, tailored channels, and more!
No matter your niche, this is the place for you!
discord.com/invite/n...
#ttrpg
Join the Rising Tide discord! 🌊🙌
We have monthly AMAs with industry pros, weekly support meetings, tailored channels, and more!
No matter your niche, this is the place for you!
discord.com/invite/n...
#ttrpg
October 4, 2025 at 8:21 PM
Trying to launch yourself into the TTRPG space?
Join the Rising Tide discord! 🌊🙌
We have monthly AMAs with industry pros, weekly support meetings, tailored channels, and more!
No matter your niche, this is the place for you!
discord.com/invite/n...
#ttrpg
Join the Rising Tide discord! 🌊🙌
We have monthly AMAs with industry pros, weekly support meetings, tailored channels, and more!
No matter your niche, this is the place for you!
discord.com/invite/n...
#ttrpg
#DnD players: somewhere against yet another goblin horde, the thought popped into your head and now? It lingers there, tempting you every time you touch your dice. The spark is gone. Your heart is wandering.
"I wonder what #indie #ttrpgs are like?"
We get it. You're try-curious. Go on; be bad.
"I wonder what #indie #ttrpgs are like?"
We get it. You're try-curious. Go on; be bad.
ARRHENIUS by Dungeonteller
A Far-Future Ice Age TTRPG Set in the Year 100,000
jesseharlin.itch.io
October 4, 2025 at 6:57 PM
Reposted by Arrhenius
The Wizard dons a fake plastic mustache to regain some semblance of dignity and heads out into the murky morning mist. The Journey to get his mustache back begins the way most of life's journeys do, with a single step, toward Pierce Brosnan.
@inktober #inktober #inktober2025 #murky #wizard
@inktober #inktober #inktober2025 #murky #wizard
October 4, 2025 at 6:32 PM
The Wizard dons a fake plastic mustache to regain some semblance of dignity and heads out into the murky morning mist. The Journey to get his mustache back begins the way most of life's journeys do, with a single step, toward Pierce Brosnan.
@inktober #inktober #inktober2025 #murky #wizard
@inktober #inktober #inktober2025 #murky #wizard
Reposted by Arrhenius
Illustration I did for #AgeOfArrhenius @arrhenius.bsky.social
#TTRPG - Thank you so much @jesseharl.in for the opportunity! 🤍
#TTRPG - Thank you so much @jesseharl.in for the opportunity! 🤍
March 7, 2024 at 10:37 PM
Illustration I did for #AgeOfArrhenius @arrhenius.bsky.social
#TTRPG - Thank you so much @jesseharl.in for the opportunity! 🤍
#TTRPG - Thank you so much @jesseharl.in for the opportunity! 🤍
I made a cool #ttrpg game.
Don’t believe me?
Here’s the free Quick Start Guide. Check it out for yourself.
Cover art by the wonderful @kim-hu.com.
www.drivethrurpg.com/en/product/5...
Don’t believe me?
Here’s the free Quick Start Guide. Check it out for yourself.
Cover art by the wonderful @kim-hu.com.
www.drivethrurpg.com/en/product/5...
ARRHENIUS | QUICK START GUIDE - Jesse Harlin | DriveThruRPG
ARRHENIUS is a narrative-based adventure, exploration, and combat tabletop roleplaying game that places players into the boots, hide wraps, and synthetic skin of humanity’s far future descendants as t...
www.drivethrurpg.com
October 1, 2025 at 4:18 AM
I made a cool #ttrpg game.
Don’t believe me?
Here’s the free Quick Start Guide. Check it out for yourself.
Cover art by the wonderful @kim-hu.com.
www.drivethrurpg.com/en/product/5...
Don’t believe me?
Here’s the free Quick Start Guide. Check it out for yourself.
Cover art by the wonderful @kim-hu.com.
www.drivethrurpg.com/en/product/5...
Had a great #Arrhenius game last night. The crew is exploring ancient transit tube systems under the city of Lō-Dō. They ran into the decaying remains of a train car whose holographic Conductor had been “living” amongst the bioluminescent mushrooms of the flooded line for thousands of years.
September 28, 2025 at 4:55 AM
Had a great #Arrhenius game last night. The crew is exploring ancient transit tube systems under the city of Lō-Dō. They ran into the decaying remains of a train car whose holographic Conductor had been “living” amongst the bioluminescent mushrooms of the flooded line for thousands of years.
If I was a paleontologist, geologist, or the like, I get the sense that my mortal enemy would be the Ice Age franchise movies.
September 24, 2025 at 1:12 AM
If I was a paleontologist, geologist, or the like, I get the sense that my mortal enemy would be the Ice Age franchise movies.
Reposted by Arrhenius
ARRHENIUS | AVAILABLE NOW! | An Icecore Roleplaying Game
youtu.be/cbrp6xPq1OY
#ttrpg #indiegame #rpg #tabletop
youtu.be/cbrp6xPq1OY
#ttrpg #indiegame #rpg #tabletop
ARRHENIUS | AVAILABLE NOW! | An Icecore Roleplaying Game
YouTube video by Dungeonteller
youtu.be
August 20, 2025 at 10:51 PM
ARRHENIUS | AVAILABLE NOW! | An Icecore Roleplaying Game
youtu.be/cbrp6xPq1OY
#ttrpg #indiegame #rpg #tabletop
youtu.be/cbrp6xPq1OY
#ttrpg #indiegame #rpg #tabletop
Reposted by Arrhenius
Sun Tzu in his Art of War once said "those who save consumables will be buried with them."
September 20, 2025 at 9:22 AM
Sun Tzu in his Art of War once said "those who save consumables will be buried with them."