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Isaac Williams

@losing.games
2.7K followers 337 following 188 posts

I make things for computer and cardboard. Designer of ENNIE award winning sword-and-whiskers RPG Mausritter: mausritter.com

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Isaac Williams @losing.games · 18/03/2026
Doing my best Lupin III impression.
A sketchy drawing of a mouse driving an RC car. It's going fast and kicking up a lot of dust.
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Isaac Williams @losing.games · 10/03/2026
Have been busy working on the Junk City guidebook, including making a lot of character portraits for all the most notable creatures in the city. www.backerkit.com/c/projects/e...
A grid of 24 character portraits for Mausritter: Junk City, depicting a mix of mice, rats and other critters.
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Isaac Williams @losing.games · 06/12/2025
One hour of Mausritter Month left! Junk City is dangerously close to unlocking our last stretch goal 🙀 www.backerkit.com/c/projects/e...
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Isaac Williams @losing.games · 29/11/2025
Just one week left for the Junk City campaign and Mausritter Month as a whole! Can we unlock the two final stretch goals: Character Standees and a sweet glow-in-the-dark item card puzzle? www.backerkit.com/c/projects/e...
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Isaac Williams @losing.games · 16/11/2025
From scrap sorting and ore smelting to the daily news, nothing in Junk City escapes the stench of Wreck Industries. Junk City has no king, but if one creature were to claim the crown it might just be Javid Wreck.
Javid Wreck; a toad wearing a top hat & carrying a pocket watch.
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Isaac Williams @losing.games · 16/11/2025
The Cult of the Silver hunt the gate shards for Cantor Polaris. Cantor is a fabulously wealthy, and fabulously eccentric noblemouse with snow white fur and golden eyes. Famous for his lavish parties, Cantor hordes secrets and memories.
Cantor Polaris; a snow-white mouse with golden eyes. He carries a cane with a gem embedded in the handle.
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Isaac Williams @losing.games · 16/11/2025
The Vermin Syndicate are a criminal conglomerate, running every aspect of Junk City's underworld from their Beetle Casino. Carlotta controls the Syndicate with a smooth purr and bloody claws.
Carlotta; a small black cat wearing a bow.
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Isaac Williams @losing.games · 16/11/2025
Despite a staid and regal façade, the Council of Buhgermice are a constant swirling mass of political intrigue. Billious Pitt currently stands with as Mayor, but who knows for how long. The Fuzz, Junk City's police force nominally keeps the peace. Their badges say "justice". Sometimes it happens.
Lord Billious Pitt, Mayor of Junk City; an elderly mouse, wearing glasses and a large gold chain.
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Isaac Williams @losing.games · 11/11/2025
Very proud of all of the Mausritter Month projects and so happy we could get them all 100% funded! Years-worth of wonderful mouse adventures being created here. Thanks so much to everyone who's helped support these projects!
Screenshot of BackerKit page showing 16/16 Mausritter Month projects funded.
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Isaac Williams @losing.games · 11/11/2025
Really love this succinct table of creature stats for Mausritter. It's basically the checklist I have in my head when designing creatures, but very useful to have it laid out like this.
Mausritter – Creature Benchmarks

Category: Scale
	•	Warband: Typical, Outmatched (cat)

HP (Hit Points)
	•	15: Epic (cat, owl)
	•	12: Daunting (crow, snake)
	•	8: Formidable (ghost)
	•	6: Dangerous (frog, faerie, spider)
	•	3: Troublesome (mouse, rat)

STR (Strength)
	•	15: Indomitable (cat, owl)
	•	12: Powerful (crow, frog, snake, rat)
	•	10: Resilient (centipede, faerie)
	•	8–9: Average (spider, mouse)
	•	5: Weak (ghost)

DEX (Dexterity)
	•	15: Lightning (cat, crow, frog, faerie, owl, spider)
	•	10–12: Fast (ghost, snake, centipede)
	•	8–9: Average (rat, mouse)

WIL (Willpower)
	•	15: Mystifying (crow, faerie, owl)
	•	10: Imposing (cat, ghost, snake, spider)
	•	8–9: Relatable (centipede, frog, rat, mouse)

Armor
	•	2: Reinforced (snake)
	•	1: Tough (cat, centipede, crow, frog, owl, spider)
	•	0: Vulnerable (faerie, mouse, rat)
	•	*: Ethereal (ghost)
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Isaac Williams @losing.games · 05/11/2025
Just hit 1000+ backers for Junk City! Thanks so much to everyone for your support and love, it's been a wild day-and-bit.
Screenshot of the Junk City BackerKit showing 1003 backers.
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Isaac Williams @losing.games · 01/11/2025
The Junk City map will be my magnum opus.
Map of Junk City. Highly detailed drawing of an overhead view of a junkyard.
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Isaac Williams @losing.games · 03/09/2025
Took way too long to get the glow right but quite satisfied with this explosion
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Isaac Williams @losing.games · 04/03/2025
oh, and now the Mouse generator, Adventure Site & Item card studio are all available localised into German! mausritter.com/mouse/?lang=de
Screenshot of the Mausritter Mouse Generator, localised into German.
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Isaac Williams @losing.games · 23/12/2024
I have good news for you
Photo of the army page of Richard Scarrys cars and trucks and things that go
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Isaac Williams @losing.games · 13/12/2024
Nasty little guy. Very rude.
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Isaac Williams @losing.games · 30/11/2024
Drawing of a happy fungimancer
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Isaac Williams @losing.games · 29/11/2024
The Mausritter Box Set and the Estate are both 50% in Exalted Funeral's Black Friday sale if you want to catch a very good deal! - www.exaltedfuneral.com/products/mau... - www.exaltedfuneral.com/products/mau...
Screenshot of the Exalted Funeral online store, showing that Mausritter is 50% off
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Isaac Williams @losing.games · 29/11/2024
Some nice juicy hits
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Isaac Williams @losing.games · 27/11/2024
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Isaac Williams @losing.games · 27/11/2024
They’re just drawn in Procreate on the iPad. Then I pop them into photoshop and put the lines/fill/highlight layers into the RGB channels of an image, which then gets used in the shader to render each layer with the appropriate color
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Isaac Williams @losing.games · 23/11/2024
The Mausritter library now has an incredible 1000 resources from hundreds of creators around the world! What an amazing milestone for the little mouse game and the creative and welcoming community around it ❤️ library.mausritter.com
Screenshot of the Mausritter library landing page, showing 1000 resources
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Isaac Williams @losing.games · 21/11/2024
Wrote a funky shader to support re-coloring the dudes, while maintaining the subtle textures and blend modes
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Isaac Williams @losing.games · 21/11/2024
Doodling bad dudes
Grid of nine character simple, cartoonish characters, each drawn in two colors
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Isaac Williams @losing.games · 17/11/2024
Upon learning that Half Life 2 is 20 years old www.youtube.com/watch?v=YCjN...
Clip from Indiana Jones and the Last Crusade. Walter Donovan is aging into a skeleton.
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Isaac Williams @losing.games · 30/10/2024
Back to bad habits (making overly-detailed 3d maquettes)
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Isaac Williams @losing.games · 18/10/2024
(naive melody)
Bad drawing of a yellow cartoon dog
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Isaac Williams @losing.games · 18/10/2024
Dog want ball
Painted illustration of a yellow dog. A Mausritter mouse adventurer stands between the dog and a tennis ball.
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Isaac Williams @losing.games · 11/10/2024
Updated the generators on the Mausritter website to support localisations (use the 🌐 icon in the top-right to change). Only Italian right now, but more languages on the way soon! Very nice to have the mouse generator ready to roll for players of the localised versions. mausritter.com/mouse/
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Isaac Williams @losing.games · 01/10/2024
Quickly moving from 10 to 11 (!!!) languages, with the Ukrainian edition boxed set from M87 Games now in pre-order and looking gorgeous m87games.com/products/mau...
Ukrainian edition of Mausritter box set
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Isaac Williams @losing.games · 20/09/2024
Just received the lovely Portuguese translation of Mausritter from Caramelo Jogos. That marks the 10th (🤯) language that Mausritter is available in! www.caramelojogos.com.br/mausritter-2...
Fanned out zines of Mausritter in Portuguese
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Isaac Williams @losing.games · 23/05/2024
Excited that there's some offical Mausritter merch available! The t-shirt features the cover illustration from the original 2019 zine edition of the rulebook, which I've always had soft spot for, so it's nice it can get another outing. www.exaltedfuneral.com/products/mau...
Flat display of a t-shirt, featuring an illustration of a mouse peering into a dark hole, and the title "Mausritter: Sword and whiskers role playing"
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Isaac Williams @losing.games · 25/03/2024
Working on something a bit different: A word game! It's getting pretty close to done, expect to see it playable in the next couple of weeks.
Screenshot of a word game, showing several multicoloured crosswords.
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Isaac Williams @losing.games · 26/02/2024
Was gifted two zucchini?!
Two zucchini?!
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Isaac Williams @losing.games · 07/02/2024
Hello new folk! I'm Isaac and I made a sword-and-whiskers role-playing game called Mausritter. I also dabble in other stuff. Roll-and-writes, videogames and whatever takes my fancy. Follow for minimal focus. Check out the Losing Games itch for the full collection losing-games.itch.io
A 3D-rendered mockup illustrating all the stuff that comes inside the Mausritter Box set.An example of a filled in play sheet for A Year In.Screenshot of a work-in-progress videogame, with a hand of cards and egg-shaped enemy.
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Isaac Williams @losing.games · 16/01/2024
Yeastling
Single-cell colony that got out hand. Distinctly sour smell.

3hp STR 9, DEX 3, WIL 3
Attacks: d6 engulf
Critical damage: Double in size (gains d6hp, d6 STR)
Special: Doesn’t make Morale saves. Delicious when cooked.
Wants to expand

Flavour profiles
- Boozy — attacks of 4+ damage give Drunk condition
- Salt — Crusty shell. 1 armour.
- Fruit — Critical damage: Rust carried metal item.
- Dark rye — Knows spell: Darkness
- Tea — Very slimy. Make a DEX Save to approach.
- Party — Attacks: d6+d6 striped candles. Wears a pointy hat.
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Isaac Williams @losing.games · 10/01/2024
Expecting a cease and desist from @morkborg.bsky.social any day now 😬
A screenshot of the Mausritter library header, showing that there are 666 resources
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Isaac Williams @losing.games · 22/09/2023
Got my dev copy of the Hexcrawl Toolbox from @gamesomnivorous.bsky.social and tell you what, it looks & feels incredible. Can't wait to sent some players out into wilderness to explore
Boxed copy of Hexcrawl Toolbox, showing hexes, postcrawls and notepadExample setup of a hexcrawl created using pieces from the Hexcrawl Toolbox
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Isaac Williams @losing.games · 23/08/2023
We just launched the Mausritter Library, the new destination for community created third-party Mausritter content! library.mausritter.com It's amazing to see the 520+ (!!!) Mausritter resources in a fully categorised, tagged and searchable format.
Screenshot of the Mausritter Library search form
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Isaac Williams @losing.games · 31/07/2023
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Isaac Williams @losing.games · 31/07/2023
Turn your enemies weapons against them
1500 metal spikes
It started with the discovery of a huge nest in Antwerp, in the courtyard of a hospital, which was spotted by one of the patients. High up in a tree, magpies made a huge nest of up to 1,500 metal spikes. For this particular nest, birds have pulled as many as 50 meters (150 feet) of anti-bird pins from the eaves. “An impregnable fortress”, says Hiemstra, “because the magpies appear to be using the pins exactly the same way we do: to keep other birds away from their nest.”
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Isaac Williams @losing.games · 19/07/2023
@firstdogonthemoon.bsky.social spotted in the wild
Picture of an information sign, asking people to be careful when cassowaries and food is involved
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