Diesel Empires

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Friday, October 31, 2025

Kurmoricon! 2025!

DAY 1 OF KUMORICON

I thought I easily had this in the bag. I definitely did NOT have this in the bag, but I think I am going to be able to make it across the finish line (or perish trying).

Anyhow, game stuff below! It's a really different take on the game since I am using licensed settings for this convention (except for one), so don't expect these to stay up for long, or if they do, this will probably be the only place I can show them off.

Upcoming Games

Latest Rules (v31.0.0 (Kumoricon 2025))

Released: October 31, 2025

New rules set! A lot of it is to make it more narrative and make it easier for GM's to structure games. Also, just for Kumoricon, I have Paths for Cowboy Bebop and Trigun!

Kumoricon 2025
Sat • Nov 1 • 1:00pm

Trigun: 10 Tons of Guns

It took $$2,000,000 just to consider driving out to Eden Basin, and another $$6,000,000 to haul their huge pile of guns to their desolate town. It's enough firepower to start a war, or to finish one, but that's none of your darned business - you just don't want to be there when the shooting starts.

Kumoricon 2025
Sat • Nov 1 • 5:00pm

Cowboy Bebop: Earth Bound Blitz

Why did it have to be Earth? The ₩2,000,000 down payment makes the trip easier to swallow, and luckily, you don't have to be there for long. Drop off a case, grab your Woolongs, and maybe see a Moon Shower on your way back to orbit. You hope it's that easy, but nothing is ever easy for a Cowboy.

Kumoricon 2025
Sun • Nov 2 • 11:00am

Middle-Aged Magic Girls

20 years ago you defeated Lord Star Shadow and saved the world from evil. Today, you are trying to live your best life on the residual licensing from your fame. And yet, 20 years on, something feels off about your victory, and as the 20th Anniversary approaches the shadows seem longer and darker...

Questions?

Feel free to email me at jlee@uptoolategames.com

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Rulesets

v31.0.0 (Kumoricon 2025)

Released: October 31, 2025

New rules set! A lot of it is to make it more narrative and make it easier for GM's to structure games. Also, just for Kumoricon, I have Paths for Cowboy Bebop and Trigun!

v30.0.0

Released: February 25, 2025

Everything I loved about v29.4.4 with an addition that I saw players attempting to do several times, and I liked the concept: Core Traits don't automatically start at one, but during a Check, you add one Core Trait with one Background Trait to get your starting draw. I think it makes the Core Traits more powerful, and makes how the players use their characters more unique (I hope).

v29.4.4

Released: January 10, 2025

So far v29.x is a winner! At least for my style of play. Still some things I need to fix about weapon damage and key traits. I like where v29.4.4 is going though...

v29.4.3

Released: November 27, 2024

This version adds in some refinements to v29.4.1 and changes up some of the terms to make more sense. What happened to v29.4.2? Maybe I'll tell y'all about it when you get older...

v29.4.1

Released: October 18, 2024

Oh boy I am SUPER excited for these rules! Let's see how they do in real games now...

I'm also experimenting with the player handouts so I can drastically reduce how much paper I use.

v29.4.0

Released: October 12, 2024

These rules premiered at a private con and oh boy did I have fun! I have this sinking suspicion that this might be approaching the final form for the game. v29 has been my most favorite version.

v29.3.2

Released: August 23, 2024

This is the ruleset that I will be bringing to the 2024 Rose City Comic Con. There won't be any "Bad Night" games, but I added the playbook since they were part of playtesting.

v29.3.1

Released: July 29, 2024

This was for a one shot called "Bad Night in Bonethorne Port". Experimented with a new combat system and a new way to approach checks.

v29.2.0

Released: March 3, 2024

v29.1.0

Released: January 11, 2024

This still uses the v29.0.0 core sheets.

v0.0.1 (Turn of the Card Edition)

Released: May 5, 2022

This one is a remix for another game I produced with my good friend Paul Abeyta. It can be found at TurnoftheCard.com.

v24.2.0

Released: January 28, 2022

v1.4.0 (First Edition)

Released: February 16, 2020