itch.io

Hey yeah absolutely! Please be sure to give me credit and link back to this version on the Itch page, but when you do let me know so I can share it! Would it be useful to you to have a textless version of the layout?

Ah thank you!

Thanks. Yes I did mean unchecked! I've edited for clarity.

I've been running the jam for years and never seen it not listed, so thanks for clarifying. I guess it's just my year to not be shown. Guess I should try and get it on the featured list!

Every year I run a TTRPG game jam, several of which have been featured jams, but this year it's not appearing on the jam page; either as a feature nor anywhere on the calendar. The jam has the 'unlisted' box unchecked so I can't see a reason for it to be excluded. I realised after multiple people reached out to ask when the jam was this year - it's happening right now!

The jam in question is this year's One-Page RPG Jam (https://itch.io/jam/one-page-rpg-jam-2026).

Please can someone let me know if I've missed something or need to something new for it to show up?

Hi thanks for your writeup and questions! 

1) This would be a GM call, but ultimately, if a piece of gear would remove risk (or significantly reduce it) then you can avoid rolling. Other times gear might just make it a bit easier (represented by rolling and discarding an extra die) or it might be that gear makes it possible at all.

For example, a grappling hook might make climbing easy enough that you don't need to roll, or there might still be some risk because you still have to avoid venting steam. But you won't be able to walk across the metal ceiling at all without MagBoots.

There is also an assumption that there would be more than one freelancer, each with their own set of gear. Playing solo you probably want to roll once or twice more for extra gear.

2) The intent was that Harm starts at 0, so you effectively get two free 'harm consequences'.

From my reading of your play-through, it looks like you were rolling a d6 for each zone on the way out against your Harm? The intent is that Harm Level is checked against when you roll for an action after the tower has fallen - either on your way out, or if you decide to push on upwards. So a HL of 3 has a small chance of being taken out (~3%) and that increases on a curve, up to HL 13, where any roll will be enough to finish you off.

So all things considered, you were probably playing on hard mode!

Yep! It starts Monday and you can sign up here: https://itch.io/jam/one-page-rpg-jam-2026

This thread is specifically for the sharing of resources; both One-Page-RPG-specific and general TTRPG design resources.

COMMUNITY RESOURCES

Make Your Own One-Page RPG - Series by Skeleton Code Machine.

So You Want to Make a TTRPG - Compilation of useful links by The Copper Compendium.

TTRPG Resource Masterpost by Starshine Scribbles

TTRPG Resource Jam - All submissions to the TTRPG Resources Jam with a wealth of templates and advice.

ASSETS AND TOOLS

TTRPG Resource Masterpost by Starshine Scribbles

Game Icons and Flat Icon - Free icon graphics.

Unsplash and Pexels - Free stock photo.

Safety Tools - A description of various social and content tools for TTRPGs. 

Open License One Page RPG Systems - A list of one-page systems with open licenses allowing you to hack the rules for your own game. (Courtesy of Chaosmeister.)

Any Dice - Dice probability calculator.

Itch.io Image Templates - A set of templates to make images the correct size for various places on itch.io.

Resolution Mechanic List - A list of new resolution mechanics from readers of Prismatic Wasteland.

PLACES

/r/onepagerpgs - The one-page RPG subreddit

/r/RPGcreation - General subreddit about designing ttRPGs.

PREVIOUS JAMS

Submissions to the One-Page RPG Jam 2025

Submissions to the One-Page RPG Jam 2024

Submissions to the One-Page RPG Jam 2023

Submissions to the One-Page RPG Jam 2022

Submissions to the One-Page RPG Jam 2021

Submissions to the One-Page RPG Jam 2020

What is a one-page RPG?

For the purposes of this jam, a one-page RPG is a tabletop roleplaying game (TTRPG) where the rules fit onto a single sheet of paper sizes A4/Letter or smaller. A TTRPG could include everything from strategic, combat-oriented adventure games; to collaborative and GM-less story games. The aim of this jam is for people to experiment with different designs. 

Does it have to be a single page?

For the jam, your submission should fit onto one single sheet of paper. The sheet could be a flat sheet or folded into a pamphlet. The game can be spread across both sides, but keep the core rules onto a single side. Use the 'back page' for ancillary info such as GM tools, solo-prompts, or extra gameable elements, such as a map.

Ask yourself the question “Can a group of players pick up the front page, read it through, then start playing the game without additional info?”. If the answer is yes, you’re in good shape.

Can I include extra pages for character sheets or extra character options, adventures, bestiaries, tokens, etc.?

As long as the core rules fit onto a single sheet, and a player/group could pick up that page and happily run that game without the extra pages, then you're good to go. 

You could include optional rules on an extra page specific to using that extra content (e.g random encounter rules on a hex map adventure) however anything that is required to play the game should be available to the players on the main page.

The important thing is that your submission is not multiple pages of text that players (including a GM if the game requires one) have to read first in order to play your game.

Can I include extra information on a character sheet?

If your game has character sheets they can be separate, however they should not contain information not in the core rules. If you could take the main page and a blank notebook, and replicate all the information on the character by hand, then you'll be fine. 

If the character sheet has stats, abilities, equipment, etc. that can't be derived from the main page, then they shouldn't be included.

How necessary are character sheets?

It depends on the game you’re creating and the information you want the players to track, but 90% of one-page RPGs don't have, or need, character sheets. Often just expecting players to keep track on paper is enough.

What size paper should I use?

You can use up to US Letter (8.5 × 11 inches) or A4 (297 x 210 mm) sized paper, and down to index card size. The paper can also be folded in half or in a pamphlet.

What font size should I use?

The important thing is that the design is easy to read, and the text is as efficient as possible at explaining the game. Depending on the font, 10pt is a good size, balancing space and readability; for most fonts 8.5pt is likely to be the minimum.

Is the jam ranked?

The jam is not ranked, and there are no judges. The spirit of the jam is to be as welcoming and experimental as possible, without worrying about being judged.

However if you see a game you like, be sure to rate it and leave a comment, and share the game with others you think would like it too.

Is it okay to submit the same game to this and to another jam at the same time?

Absolutely, as long as the game was made during the duration of this jam and fit the brief. Please do not submit older games or games that are not one-page RPGs.

Do submissions have to be in English?

All languages are welcome in submissions!

Can I use AI when creating my game?

Please refer to the jam's Generative AI policy.

Below is the jam’s policy on using generative AI tools (Midjourney, ChatGPT, etc.) in submissions, as well as a longer-form explanation. This policy was decided on after surveying jam participants, the results of which can be found on the Unknown Dungeon blog.

Generative AI may not be used to create any images, elements of images, or text used in a submission or a submission’s Itch.io project page, except for limited modifications to a translation from another language.

Images 

You may not use images generated using an AI tool in your game.  
 You may not use images where part of the image (such as a character or object) was generated using an AI tool in your game.
You may not generate any asset (such as a texture or shape) and use that in your game or as part of an image in your game.
You may not use a photo or other image that has been put through a generative  AI filter in your game.
You may use content-aware fill tools to remove parts of images, as long as you’re not adding anything new.
All of the above applies equally to images you would make yourself from a prompt, and images generated by another - such as a stock image site.

All of the above also applies to the Itch.io page for your game - the page, cover image, banner, etc.

Text

You may not use text generated from a prompt in your game.
You may not use text re-written by a generative AI tool in your game.
You may not use text that has had spelling or grammar errors fixed by a generative AI tool in your game.
You may use a generative AI tool to help identify errors in text, as long as you rewrite the text yourself to fix those errors.
You may not use a generative AI tool to translate an entire game into a different language, nor translate paragraphs of text in your game
You may use a generative AI tool to check a translation you've done yourself or done with a non-generative AI tool.
You may use a generative AI tool to help bounce ideas off or source information, as long as none of the text generated by the tool end up in your finished submission.

All of the above also applies to the Itch.io page for your game.

If you're using a tool or app that isn't a dedicated generative-AI-based tool, but that uses generative AI within it, you can use that tool or app but not those generative AI functions.

The One-Page RPG Jam has always been about making game design accessible in scope, and the jam has always aimed to give people a chance to explore their creativity in a small, low-stakes environment; to enjoy working on something new, push their boundaries, and take themselves, at least a little, out of their comfort zone. If you don’t have experience writing, write something. If you don’t think you can draw, draw something anyway. 

What is a one-page RPG?

For the purposes of this jam, a one-page RPG is a tabletop roleplaying game (TTRPG) where the rules fit onto a single page of A4/Letter-sized paper. A TTRPG could include everything from strategic, combat-oriented adventure games; to collaborative and GM-less story games. The aim of this jam is for people to experiment with different designs. 

Does it have to be a single page?

For the jam, your submission should fit onto one single side of paper. The sheet could be a flat sheet or folded, however the game must be on a single side. There are no ‘back-pages’ allowed in this jam.

Can I include extra pages for character sheets or extra character options, adventures, bestiaries, tokens, etc.?

No, everything in your submission must be on one side of paper. The reverse side must be blank and no extra pages can be used - including GM tables, character sheets, maps, elements to cut out, etc.

Do I have to fit the theme?

For this jam, all entries must tie into the theme, given at the start of the jam.

What size paper should I use?

You must use either US Letter (8.5 × 11 inches) or A4 (297 x 210 mm) sized paper, 

Can I submit more than one game?

Each participant (or team) may only submit one game to this jam.

Is it okay to submit the same game to this and to another jam at the same time?

Absolutely, as long as the game was made during the duration of this jam and fit the brief. Please do not submit older games or games that are not one-page RPGs.

Do submissions have to be in English?

All languages are welcome in submissions!

Is the jam ranked?

The jam is not ranked, and there are no judges. 

However if you see a game you like, be sure to rate it and leave a comment, and share the game with others you think would like it too.

What font size should I use?

The important thing is that the design is easy to read, and the text is as efficient as possible at explaining the game. Depending on the font, 10pt is a good size, balancing space and readability; for most fonts 8.5pt is likely to be the minimum.

Can I use generative AI to create text/images for my submission?

Generative AI tools may not be used to create any images, elements of images, or text used in a submission or a submission’s Itch.io project page, except for limited modifications to a translation from another language.

You can find out more information regarding generative AI by reading the jam’s full policy here.

Below is the jam’s policy on using generative AI tools (Midjourney, ChatGPT, etc.) in submissions, as well as a longer-form explanation. This policy was decided on after surveying jam participants, the results of which can be found on the Unknown Dungeon blog.

Generative AI may not be used to create any images, elements of images, or text used in a submission or a submission’s Itch.io project page, except for limited modifications to a translation from another language.

Images

• You may not use images generated using an AI tool in your game. 
• You may not use images where part of the image (such as a character or object) was generated using an AI tool in your game.
• You may not generate any asset (such as a texture or shape) and use that in your game or as part of an image in your game.
• You may not use a photo or other image that has been put through a generative  AI filter in your game.
• You may use content-aware fill tools to remove parts of images, as long as you’re not adding anything new.

All of the above applies equally to images you would make yourself from a prompt, and images generated by another - such as a stock image site.

All of the above also applies to the Itch.io page for your game - the page, cover image, banner, etc.

Text

• You may not use text generated from a prompt in your game.
• You may not use text re-written by a generative AI tool in your game.
• You may not use text that has had spelling or grammar errors fixed by a generative AI tool in your game.
• You may use a generative AI tool to help identify errors in text, as long as you rewrite the text yourself to fix those errors.
• You may not use a generative AI tool to translate an entire game into a different language, nor translate paragraphs of text in your fgame
• You may use a generative AI tool to check a translation you've done yourself or done with a non-generative AI tool.
• You may use an generative AI tool to help bounce ideas off or source information, as long as none of the text generated by the tool end up in your finished submission.

All of the above also applies to the Itch.io page for your game.

If you're using a tool or app that isn't a dedicated generative-AI-based tool, but that uses generative AI within it, you can use that tool or app but not those generative AI functions.

The One-Page RPG Jam has always been about making game design accessible in scope, and the jam has always aimed to give people a chance to explore their creativity in a small, low-stakes environment; to enjoy working on something new, push their boundaries, and take themselves, at least a little, out of their comfort zone. If you don’t have experience writing, write something. If you don’t think you can draw, draw something anyway. 

What exactly can I make?

You can make anything you want, as long as it is a bookmark and related to tabletop roleplaying games. You could include a complete set of game rules, similar to the normal One-Page RPG Jam, or you can create something intended to be used as part of playing or creating a TTRPG.

Can I use both sides of the bookmark?

Yes, you can use both sides for whatever you want. Unlike the One-Page RPG Jam we’re not making a distinction between front and back sides.

What dimensions should my bookmark be?

The most common bookmark sizes are 2 x 6” (standard) and 2 x 7” (long).

That said, different printing companies offer different templating options, including 2 x 3”, 2 x 8”, etc. If in doubt, use one of the two standard sizes. However if you want to use a different template from a printing company, go ahead.

Can I spread my content over multiple bookmarks?

Each bookmark should stand alone, but multiple submissions are encouraged and you’re welcome to spread a theme across.

For example, if your entry is horror-themed random tables, you could create multiple bookmarks, each with a different set of tables; as long as you don’t need all the the bookmarks for the tables to make sense. However you cannot write a TTRPG ruleset and spread them across multiple bookmarks.

Can I add extra parts to my submission?

No, submissions should just be bookmarks, each of which can stand alone. No extra instructions, physical elements, etc. can be part of your submission.

You can, however, require someone using the bookmark to have extra objects, such as a pencil, dice, a book, etc.

Is the jam ranked?

The jam is not ranked, and there are no judges. The spirit of the jam is to be as welcoming and experimental as possible, without worrying about being judged.

However if you see an entry you like, be sure to rate it and leave a comment, and share the submission with others you think would like it too.

Is it okay to submit the same submission to this and to another jam at the same time?

Absolutely, as long as the bookmark was made during the duration of this jam and fits the brief. Please do not submit older creations or submissions that aren’t TTRPG-related bookmarks.

Do submissions have to be in English?

All languages are welcome in submissions!

This jam uses the same policy on generative AI tools as the main One-Page RPG Jam. The policy is below, and a longer-form explanation can be found here.

Generative AI may not be used to create any images, elements of images, or text used in a submission or a submission’s Itch.io project page, except for limited modifications to a translation from another language.

Yeah absolutely!

I love using a Jenga tower in a TTRPG and it's cool it used in an L&F hack. Very nice.

I love the idea of using lines from a poetry book as prompts. Great little storytelling game!

This is a cool little game; very FKR. Unfortunately it's very hard to read, and I think would have been better with a larger font and the border taking up less of the page. I can see you jumping in to the game very quickly though, which is always good.

Great setting. Very evocative and conveys the idea well. 

https://itch.io/jam/406350/add-game/3824410/2418306?token=v1ltKQc6hl7tT3KwkZYusF...

https://itch.io/jam/406350/add-game/3820867/2418306?token=XrR5lWIKu2ciciz7K8Duvd...

https://itch.io/jam/406350/add-game/3826212/2418306?token=PdCvzbKJg9HHR4iqBE9Ivj...

https://itch.io/jam/406350/add-game/3822711/2418306?token=sdDLSvXxpEB4jxyGbalQmE...

This is already submitted :)

This is already submitted :)

https://itch.io/jam/406350/add-game/3821941/2418306?token=I4SLzZTz1oCFGuugdzEJuN...

https://itch.io/jam/406350/add-game/3821476/2418306?token=VpWry6jQbosd7yb5Ow6ot6...

https://itch.io/jam/406350/add-game/3820823/2418306?token=QhkSdrktKPRZGRz9CqZHim...

https://itch.io/jam/406350/add-game/3820645/2418306?token=BPN47dGvfVgcoZdx1fG8KP...

https://itch.io/jam/406350/add-game/3820159/2418306?token=oxqSFWjloMUoDXSMWRz2T2...

https://itch.io/jam/406350/add-game/3820156/2418306?token=OV181AKi2uy47orbMNhcXu...

Memory - https://itch.io/jam/406350/add-game/3819920/2418306?token=EfBEfOA30nGc34TdtCb8bO...

Cathedral - https://itch.io/jam/406350/add-game/3820043/2418306?token=jXjCXZSWsWUHBqpiT2XjTE...

https://itch.io/jam/406350/add-game/3820055/2418306?token=a9AFyMBHnAnJ4OiyOodwjw...

Looks like this one made it in!

https://itch.io/jam/406350/add-game/3818858/2418306?token=QipeFZdBuovTrnCxY7oEnl...

Check the new sticky thread for details! https://itch.io/jam/one-page-rpg-jam-2025/topic/5226492/late-entries-post-here

Itch was down for the final leg of the jam, which prevented people from submitting. If you have a "late" submission, because of this downtime or some other reason, I need the URLs of each submission, which I can then use to create a bespoke link. So please drop your URL here, and tomorrow I'll go through and make the links. This will stay open for a day or so, then I'll have to cut it off.

Hey, always worth checking the FAQ:

Does it have to be a single page?

For the jam, your submission should fit onto one single sheet of paper. The sheet could be a flat sheet or folded into a pamphlet. The game can be spread across both sides, but keep the core rules onto a single side. Use the 'back page' for ancillary info such as GM tools, solo-prompts, or extra gameable elements, such as a map.

Ask yourself the question “Can a group of players pick up the front page, read it through, then start playing the game without additional info?”. If the answer is yes, you’re in good shape.

Bluesky or Discord are alternative options as well if you use those?

Yeah that's sounds like a great idea. As long as the group/solo player only needs one sheet and can disregard the other you're good.