JULY 8 - 10
  Demo, intro, graphics and music competitions
The usual competitions for Atari demo/intro, graphics and music will be held. Demos that work on our compo hardware hardware will be run live while other Atari platforms will need a video recording to be submitted as well.
We will display full specifications of the hardware requirements as well as file size/resolution before it's shown.
Remote entries
You can send us remote entries via e-mail (use a suitable subject so we don't miss it by mistake). Please tell us in your mail which machine the production is aimed for.
Send entries to:
Thanks in advance for your participation!
For the most recent timetable with deadlines, please refer to the main page.
Compo hardware
These are the machines we will provide for the competitions; if your contribution is for another Atari machine, please submit a recording that we can play.
Atari XL
  • OS B / OS XL
  • Stereo Pokey (dual chips)
  • 1 MB RAM (Ultimate)
  • SD-card reader (no floppy, no tape!)
Atari STe
  • TOS v1.62
  • 4MB ST-RAM
  • Floppydisk or UltraSatan SD harddrive (HDdriver)
Atari Falcon 030
  • TOS v4.04
  • 14 MB ST-RAM
  • 68882 FPU
  • SSD IDE harddrive (HDdriver)
Atari Falcon 060
  • CT60-TOS v1.03c
  • 14 MB ST-RAM
  • 256 MB TT-RAM
  • Full 68060 at 66 MHz
  • SSD IDE harddrive (HDdriver)
  • SuperVidel a possibility if required
  Demo/intro competition
We support demos for all Atari (and related) platforms. If your production is for an Atari-platform that we won't have setup at the party, please send a recording along the binary.
This is a combined competition and we will make sure that all hardware specifications as well as size of the demo is shown before it runs.
No limit on number of entries per group or person.

1-bitplane competition
In April 2016, the GCWDDII 1-bitplane competition was planned to be held. In the last minute, it was cancelled.
As we heard there were some demos made for the compo, which are now in limbo, we thought why not contact the GCWDDII organisers to hear what we can do about it. Said and done, we managed to find the guys and the compo is now moved to Sommarhack.
  • The demo can only use the same two colours all through the demo.
  • The demo can only use one sound channel.
  • All the Atari hardware present at the party is allowed.
  • If a demo breaks any of the rules (like using more colours), it will be moved to the main demo compo.
This differs a bit from the original GCWDDII where breaking the rules was OK and encouraged.
No limit on number of entries per group or person.

Graphics competition
We allow any kind of Atari graphics, if it is for an unsupported Atari platform, please provide a PNG image along with the native format.
  • We aim to display pictures in the native editor such as Degas Elite, EscPaint or Neochrome.
  • Custom formats are allowed and welcome, you need to provide an executable.
  • GIF, TARGA and JPEG images will be displayed on a Falcon with APEX viewer. Maximum displayed resolution is 768*480, but the software will scale down if necessary.
  • More than one entry allowed.

Music competition
As with the graphics competition, we allow any format that is playable on an Atari. If the music is for some Atari machine that we don't have at the party, please send a recording along with the native version of the music.
  • We try to play the music in the used editor; if possible please supply a tracker loadable file.
  • Custom formats are allowed and encouraged. You need to provide an executable.
  • WAV, MP2, MP3, OGG music will be played on a Falcon with AniPlayer.
  • More than one entry allowed.