Jacob Marks
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jacobmarks.bsky.social
Jacob Marks
@jacobmarks.bsky.social
I make rpgs, programs, 3d art, and other weird things...

My largest projects are the Vaarn Atlas, Exalted Order Of The Mystic Moose, and Penumbral Oasis.

Find those, and my other games at: https://siofragames.itch.io/

Blog at: https://jacobmarkshasablog
Reposted by Jacob Marks
Four drawings that dropped to my patrons for September. Coupled with some of the other available knight drawings and maybe a monster or two, and a sorcerer, one could illustrate an arthurian-like game zine! For as low as $2.50/mo 🤯

patreon.com/perplexingruins
October 2, 2026 at 3:46 PM
Reposted by Jacob Marks
Spooky Season PSA: Don't sleep on Bloodheist by @infrabeige.bsky.social! It's something like "Blades in the Darks meets World of Darkness", but I've never not had a good time with the game. It's incredibly well written and absolutely nails the theme it's going for.

graculusdroog.itch.io/bloodheist
Bloodheist by graculusdroog
A tabletop RPG about desperate thieves and despicable vampires.
graculusdroog.itch.io
October 1, 2026 at 2:16 AM
Reposted by Jacob Marks
with a little magic from @deeverine.bsky.social, my humble submission to this year's Vaarn jam is now beautiful! i'd love if you checked out the new doc's layout ✨

thursday-garreau.itch.io/blue-mosaic-...
September 28, 2026 at 10:38 PM
Reposted by Jacob Marks
rat-bastard-games.itch.io/wolves-of-th...

HEY DO YOU LIKE THE BRONZE AGE AND HEXCRAWLS?
DO YOU LIKE THE MINOANS?
CHECK OUT
CRETE
FOR WOLVES OF THE AEGEAN

THE RULES ARE FREE
Wolves of the Aegean by Rat Bastard Games
Mythic Bronze Age Hexcrawl
rat-bastard-games.itch.io
September 23, 2026 at 1:18 AM
Reposted by Jacob Marks
The Vatican this time tomorrow:
September 18, 2026 at 9:11 PM
Last four rulesets played:
- Dungeon Crawl Classics (playing through Dark Tower)
- Dolmenwood (I'm a player in this one)
- Dungeon Inc.
- Beyond the Wall (also a player in this one for a oneshot)
last four rulesets played:
- Mothership (one-shot running Ypsilon 14)
- Vaults of Vaarn (solo)
- Mobile Frame Zero: Firebrands (in a custom setting)
- Kingdom 2e
last four rulesets played:
- OSR mishmash
- heavily hacked monostat murky bog
- call of cthulhu
- for the queen

last four adventures played:
- black manse
- empire of hatred
- masks of nyarlathotep
- dead light
September 18, 2026 at 5:37 AM
Reposted by Jacob Marks
"Trail of the Ten Terrible Trials"

I had a typo with Trails and Trials and had to repost. lol.
September 17, 2026 at 1:48 PM
Reposted by Jacob Marks
@infrabeige.bsky.social got me thinking about what a minimalist dot-grid character sheet for Vaults of #Vaarn would look like. Doing some tests.
September 17, 2026 at 1:01 AM
Reposted by Jacob Marks
Redrew the Golden Knight in my sketchbook tonight - markers and posca
September 17, 2026 at 3:54 AM
@infrabeige.bsky.social got me thinking about what a minimalist dot-grid character sheet for Vaults of #Vaarn would look like. Doing some tests.
September 17, 2026 at 1:01 AM
Reposted by Jacob Marks
We updated our game title!
Check out our real time ant colony simulator:

store.steampowered.com/app/3016940/...

#WishlistWednesday #indiedev #indiegame #pixelart #ants #entomology #RTS
September 16, 2026 at 3:09 PM
Reposted by Jacob Marks
Jam hosts now have access to "Submission requirements" to control what pages are eligible for submission, including blocking pages that disclose the use of generative AI, blocking paid games, blocking preexisting games, and more.
September 14, 2026 at 10:48 PM
I just published some character sheets for Into The Odd, Electric Bastionland or other Mark of the Odd games. I'm pretty happy with how it came out and am planning on using it for one-shots at a local gaming store.

siofragames.itch.io/odd-like-dot...

#rpg #osr #nsr #ito
Odd Like Dot Grid Character Sheet by Jacob Marks
Simplistic character sheets for Into the Odd and Electric Bastionland
siofragames.itch.io
September 13, 2026 at 5:31 PM
Reposted by Jacob Marks
refining my severian
September 12, 2026 at 1:42 AM
Reposted by Jacob Marks
any one of these ideas could've carried a jam entry, but instead i sketched out little one-page versions of each and threw em all in a document together :3
September 11, 2026 at 2:09 AM
Reposted by Jacob Marks
there's something very contemporary about this 1908 painting of Judas by Sascha Schneider
(or just a testament to the Symbolists' lasting influence to this day)
September 10, 2026 at 1:09 PM
Reposted by Jacob Marks
A new dawn of post-OSR indie TTRPG Thinking Adventure Music publishing
did a book for mr ableton g cook of pc music fame innit
Soulbreaker Codex - a catalogue of anachronistic phenomena across three epochs: 1000, 2000, and 3000 AD

Text by @lukegearing.bsky.social
Songwriting & Editing by A. G. Cook
Art & Direction by @jacobhulmston.bsky.social
Design by Martin Uhrecký

Preorder available now via britpop.online
September 9, 2026 at 8:03 PM
Reposted by Jacob Marks
Since Zelda is trending, a friendly reminder how CRAZY good Katsuya Terada is. (1/3)
September 9, 2026 at 1:23 PM
More Into the Odd character sheet tests. I'm planning a one shot at a gaming store and I really want something to communicate the simplicity, while keeping room for notes and maps.

#osr #nsr
September 8, 2026 at 4:10 PM
Reposted by Jacob Marks
The Eyes of the World.
September 3, 2026 at 7:44 PM
Reposted by Jacob Marks
1982's Conan the Barbarian is a movie about Arnold Schwarzenegger kicking ass and fighting snakes...but it also presents a far more thoughtful, sympathetic version of Conan than people realize. Let's talk beefy heroes, Thulsa Doom, and...feminism?
Conan the Barbarian: An Unexpectedly Nuanced Depiction of Masculinity? - Reactor
Okay, hear me out: this movie kicks ass, but it's also more thoughtful than you might expect...
reactormag.com
September 3, 2026 at 3:06 PM
Reposted by Jacob Marks
I've released an all-in-one tool that lets you extract textures from any perspective, turn them into seamless textures, and use them on your 3D models.

#gamedev #indiedev #gamedevtools #itchio #indiegame
September 2, 2026 at 11:11 PM
Reposted by Jacob Marks
⚠️ Accessories are here!

RPG Trader just got a big upgrade.

Creators can now offer print-on-demand physical accessories for their games - alongside digital downloads & print books.

Cards. Dice. Maps. GM screens. Tiles. Character sheets. Game boxes.

And it all happens directly through RPG Trader.
September 3, 2026 at 12:20 AM
Reposted by Jacob Marks
Even though promoting stuff on social media is like selling tupperware to your friends, it doesn't change the fact that we pressed the GO button on this now.

www.backerkit.com/c/projects/m...
A Bit O Troika
A street-by-street, door-by-door gazetteer of the Troikan borough of Ripplegate with spider banks, fire cults, population adjusters, and hundreds of other small businesses all mapped and packed with s...
www.backerkit.com
September 3, 2026 at 2:44 PM
Reposted by Jacob Marks
Character sheet designed for the Brazilian edition of Cairn.

The idea here is to use paper clips along the edges to track floating attribute values and hit protection, so you don’t have to keep erasing and rewriting. ^^
September 1, 2026 at 8:37 PM