Inércia is organized by Associação Inércia, a non profit organization dedicated to promoting the demoscene. 2025 will be the 17th edition of Inércia we organize and the fifth taking place in Almada.
Inércia 2025 will take place on the 6th and 7th of December 2025 at Salão Festas Incrível Almadense, the centenary event hall in the heart of Almada, just across the river from Lisbon.
This mythical hall provides us with room for up to 150 visitors (including dedicated table spots with comfortable seating for up to 50 people). The event runs from Friday afternoon until Sunday morning, during which there will be plenty of opportunity to present your work and socialize with other artists, demosceners and hardware tinkerers.
Invitation video of Inércia 2025:
Video report of Inércia 2024:
About the Demoscene
The Demoscene is an international computer art subculture focused on producing so-called demos: self-contained, sometimes extremely small, computer programs that display audiovisual content. The purpose of a demo is to show off programming, visual art, and musical skills.
Demoscene community organizes regular events to compete and socialize called demoparties: physical social events, usually over a weekend, focused on presenting new demoscene content. They typically feature competitions of several categories, seminars about relevant demoscene topics and live performances of music and visuals.
Inércia is a demoparty, but also embraces other digital art cultures, hence being defined as a digital arts and music festival.
Ticket Options
Free entrance to our volunteer organizers or associates of Associação Inércia or SFIA with their yearly quotas paid.
10€ entrance fee to other attendants (5€ each day).
Due to venue capacity limitations we have a pre-registration system requirement, you can read more about it at this other page.
Rules of Conduct
The organization reserves the right to exclude anyone from attending the event that might be causing a disturbance, we do so under the private event house rules law. We will enforce this only when dealing with complaints of discrimination or unwanted indoctrination / rhetoric speech regarding any discriminatory subjects (racism, bygotry, mysogny, religious or political hate speech, conspiracy theories, etc). Any physical or verbal threat / harrassment of our volunteer organizing staff or visitors will not be tolerated. Anyone found breaking Portuguese law will be turned over to local authorities.
General contact
For any questions and enquiries regarding the festival you can reach us through email.
We are also active on the portuguese scene discord.
Previous Editions
Check complete releases and results from our previous editions at Demozoo.
Additional Credits
Inércia 2025 is organized by Associação Inércia with the help of a dozen volunteers and partners.
The design of this website was originally taken from NOVA demoparty organizing team with permission and adapted.
Further adapted in 2025 as a Hugo theme.
The productions submission system we use for the event is Partyman.