
ModFest 1.17
Explore a demo world for 31 entirely new Fabric 1.17.1 mods of the theme: Transportation, Construction, and Myths! Created in a Summer 2021 event hosted by ModFest.
Screenshots






About this Modpack

A collaboration between 38 modders, as hosted by ModFest.
ModFest 1.17 was a mod development jam that ran from June 18th through July 4th, 2021.
This modpack contains all submissions, as well as a showcase world built by participants to show off their mods!
Key Features:
- Witness the dawn of 31 mods, including Automobility, Lovely Snails, Barren Isles, and Bing Bing Wahoo!
- Explore dense vanilla terrain with mod "booths" down the street, around the corner, and just a zip away!
- Traverse the map via main roads, interchanges, bridges, ramps, and ziplines!
- Find up to 103 collectable "taters" scattered around the map
- Hop between each of the booths via the underground mod hub!
- Get stuck in traffic!

Born to mod, forced to race... have fun!
ModFest is made possible by the modding community.
A full list of credits for each submitted mod can be found on the submissions page.
This modpack and world was originally showcased on a multiplayer server in the summer of 2021.
Check out the ModFest website to see more events, or join our discord to tour or participate in the next event live!
Available Versions
How to Set Up a ModFest 1.17 Server
Order Server
Choose at least 6 GB RAM (8 GB recommended for ModFest 1.17). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "ModFest 1.17" and click "Install". The fabric loader and Minecraft 1.17.1 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
ModFest 1.17 server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a ModFest 1.17 server really need?
Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €12/month).
Can I add custom mods to ModFest 1.17 without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.17.1). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
ModFest 1.17 server lagging – performance tips
1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
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Supported Versions
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