GIF selector:
Welcome!
You have visited the official page of UNDEFINED — a festival of programming, demoscene, homemade electronics, retro computers and everything else, which takes place approximately twice a year in the suburbs of St. Petersburg, Russia.
The festival is sheduled at August 16, 2025.
Location - Russia, Leningrad region, Roshchino village, Pesochnaya street, building 1, Raivola country hotel (hall on the ground floor of the mixed-use complex).
[Show on map] [Hotel website]
Please, use our chat room to receive updates on shedule and video streaming.
[ 
Telegram channel]
[ 
Telegram chatroom]
[ 
Web IRC chat (join #undefined)]
[ 
Matrix: #undefined:hackint.org]
[ 
Peer-tube videos (on maintenance)]
[ 
Habrahabr articles]
[ 
GPG key]
[ 
BBS (on maintenance)]
Use theese credentials to donate arbitrary amount of money to the festival admins:
Webpage history:
[2022 winter] [2022 summer] [2023 winter] [2023 summer] [2024 winter] [2024 summer] [2025 winter]
