What is BlanketCon?
BlanketCon is a collaborative event celebrating the art of Minecraft modding!
At BlanketCon, members of the modding community came together to create a themed world full of booths that showcase their current modding projects, and signed up to host talks and panels to share their expertise.
We are open! Visitors can explore the world with friends, try out mods, attend interesting events, or just hang out!
Recordings
A playlist of video recordings of BlanketCon '25 is available on YouTube - with thanks to our A/V volunteers!
Convention World
Key Features:
- Check out 234 convention "booths" built to show off mods, modpacks, and other modding projects!
- Explore a vibrant island of castaways that mysteriously migrates across the ocean...
- Traverse the map by train, car, skates, stopwatches, and much, much more!
- Find and earn 388 collectible "shards", tracking booth visits, hidden secrets, and tricky challenges!
- Put sunglasses on a pineapple! (huh?)
See you next year?
Event Details
| Modpack Platform | Fabric 1.21.1 |
| Convention World | Volcano Island National Park (WorldPainter) |
| Signups Open | Saturday, Mar 1st, 2025 @ 00:00GMT |
| Signups Close | Saturday, Mar 15th, 2025 @ 00:00GMT |
| Opening Ceremony | Saturday, Apr 26th, 2025 @ 00:00GMT |
| Closing Ceremony | Monday, Apr 28th, 2025 @ 00:00GMT |
| Who Can Participate? | Modding project authors, aspiring talk/panel hosts, and more! |
| Who Can Attend? | Everyone! |
Modders: read our BlanketCon Participation Guide for more info on what you can submit and what to expect.
World Theme
Welcome to Volcano Island National Park!
Located in the subtropics, I mean, the tropics? Blast it, let me start again. Volcano Island appears to drift across the ocean all on its own. Inhabited by the descendants of unlucky castaways and frequented for its surf season, the island is classified for conservation in most of the jurisdictions it's wandered into.
Navigating these complex bylaws, the locals - the lake-loving flamingos, the fruit-like ananas, and the geckos endemic to the island's volcano - have built stores, workshops, communal residences, and even a seaside town.
My pals from Rustport make trades there, in supplies. Supposedly there's this "grand opening" coming soon. Something really special, that only happens every quarter-century. So hey, why don't you and me hitch a ride?
Maybe we can finally solve the mystery of this place. You know - why it moves? See, the geckos have lived there longest, and apparently they tell a tale of a great turtle; one that's contently carrying an entire island on its back.
Event Schedule
BlanketCon Opening
| Type | Ceremony |
| Time | - |
| Location | Main Stage |
| Hosts | |
| Description | Kicking off BlanketCon 25 |
Welcoming Mod Garden
| Type | Panel |
| Time | - |
| Location | Main Stage |
| Hosts | Calico, Sylv, and UltrusBot |
| Description | An introduction to Mod Garden! An event somewhat similar to ModFest, but ran over a longer period of time. This panel will talk about Mod Garden, our plans for it, as well as how we've set up our internals. |
Reinvent the Wheel
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Sylv |
| Description | When it’s okay to reinvent the wheel (feat. Silicate and libreg). |
Enchiridion - The Enchantment/Enchanting System and Minimalism
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Calico |
| Description | A panel detailing the thought process behind my personal reworking of Minecraft's enchantment system, Enchiridion. |
Mapping Worlds: the creation and design of Surveyor Map Framework
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Sisby folk |
| Description | We talk about the challenges of rewriting Antique Atlas as a client-side map mod, intimidating library features like live map sharing and mod-independent world map data, and whether we've accidentally broken open the map mod (and map mod compatiblity) scene for good. Wanna help? |
Cross-version and Cross-loader Mod Development
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Zbx1425 |
| Description | Various techniques that you can employ to boost your mod's mod-pack-ability and make it a compatibility monster supporting Fabric, Quilt and *Forge, and hopefully all the way from 1.16 to 1.21 |
The Server Side Modding in 2025 (or how things constantly change)
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Patbox |
| Description | Let's talk about how the server side looks nowadays and how things keep up changing. |
Modding From the Ground Up: An Introduction to Cichlid
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Tropheus Jay |
| Description | Learn about Cichlid, a work-in-progress brand-new modloader. |
Think Outside the Block: Improving Content Mods with Game Design Fundamentals
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | LemmaEOF and hama |
| Description | Making content mods is hard. There's so much to consider for a large-scale content mod nowadays that people usually stick within a smaller-scale "vanilla+" feature set. This keynote aims to encourage more big content mod development by taking a leaf from the book of game design at large. |
How does Translucency Sorting work in Sodium?
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | douira |
| Description | How does the new system for Translucency Sorting in Sodium work? Come to find out why and how it works with pretty diagrams. I'll be walking through the whole system on a conceptual level and answering questions about the algorithms and implementation. There's also a segment on how it can break down and the work I've been doing to get around the current limitations. |
How (not) to run a ModFest
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | Sisby folk and hama |
| Description | The pitfalls, footguns and other comedic hazards of running a collaborative mapmaking event with a growing participant-base (and ways to disarm them) |
Building Mods for VR
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | hammy275 |
| Description | A keynote on how to ensure your mods play the best they can for VR players, whether you own a VR headset or not! |
Just Enough Opinions Live Recording
| Type | Other |
| Time | - |
| Location | jeo booth |
| Hosts | G_cat, frog, and Akoto090 |
| Description | A live recording of another episode of the Just Enough Opinions podcast conducted on the BlanketCon '25 server |
Modrinth Q&A
| Type | Q&A |
| Time | - |
| Location | Main Stage |
| Hosts | Prospector, Geometrically, and Emmaffle |
| Description | Modrinth Team will answer questions submitted by the community |
Sew the Spire: Adding a Mod Loader to a Game that Has a Mod Loader
| Type | Keynote |
| Time | - |
| Location | Main Stage |
| Hosts | sschr15 |
| Description | Slay the Spire is a popular game written in Java, and Fabric is a mod loader that can launch mods for any Java program. What might happen when someone wants to use the ever popular Fabric Loader with the also popular Slay the Spire? |
Closing Ceremony
| Type | Ceremony |
| Time | - |
| Location | Main Stage |
| Hosts | |
| Description | A few words to wrap up BlanketCon 25 |