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 February 21, 2026.
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: [1] [2] [Hotel website]
Price: arbitrary donation
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)]
[ Phone: +7 916 161 8822]
Use theese credentials to donate arbitrary amount of money to the festival admins:
The BuChaos Music Bottle music tournament will take place on Saturday, February 21st, at the Undefined Festival. The rules will be published later. [Last year's announcement].
Since the Undefined Winter Festival coincides with the [Assembly Festival], it was decided to watch the [broadcast] from the Assembly Festival on the Undefined screen. [Application Rules] apply for competition entries at the Assembly Festival. To upload your entries, please use the [upload system] on the Assembly - Partyman website. Submission and viewing deadlines are listed on the Assembly website in the GMT+2 time zone.
Archive of previous Undefined competitions: [demozoo] [retroscene.org]
Site visibility:
Website access from Russia is filtered. Only 16 kb of data is transferred for each TCP session. Use additional IP [144.31.87.109], or set your browser to force QUIC protocol.
