Hellfest reveals its 2026 lineup and announces the release of ARTE Riff Mountain!
Hellfest announced the release date of ARTE Riff Mountain, coming on November 21st, 2025, and revealed its official cinematic trailer.


📌 10:00–11:30 AM — Masterclass by Freddy Koné
From creation and innovation to training: creating a physical space dedicated to 3D real-time technologies (with use cases).
👉 A deep dive into The Multivert, our hybrid studio connected to UE & UEFN, designed as a real-time hub for creation, prototyping, innovation, and training.
📌6:00–8:00 PM — Keynote by Mohamed Marouene
👉 How to mix culture and gamification in Fortnite — presenting ARTE Riff Mountain, a UEFN-powered musical & narrative experience designed for replayability and evolution.


This international event brings together junior and senior professionals, students, and anyone interested in the latest developments and applications of Unreal Engine.
It gathers game industry professionals from Central and Eastern Europe, the Adriatic, and the Balkans, along with leading European experts, decision-makers, and key stakeholders in the game development ecosystem.
The first edition took place in 2022, while the 2024 edition attracted over 700 professionals from Serbia, the region, and across Europe, featuring international speakers from the United States.
Unreal Day is organized by the Serbian Games Association, with the support of Epic Games and 3Lateral.
The Serbian game development, CG, and creative tech communities are establishing themselves as some of the most vibrant in this part of the world in terms of talent and projects related to Unreal Engine.
This one-day professional event brings together both current and future Unreal Engine pioneers, across all disciplines.
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Hellfest announced the release date of ARTE Riff Mountain, coming on November 21st, 2025, and revealed its official cinematic trailer.
ARTE Riff Mountain will be featured at Paris Games Week, with an exclusive first demo available to the public.
After introducing the birth of the project in the first episode, this Dev Diary #2 dives into a key stage of the adventure: the conception phase.
SoWhen? was invited by SGA and EPIC to present a masterclass about our Multivert studio and a keynote on our co-production ARTE Riff Mountain.
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