Tried it and it doesn't run on my C3000 (before I had the HDD1 error :-)
BUT: Your Circuslinux package works fine! Thank you very much, I am no game player at all, but circuslinux is such a lovely game!
Here is the console output:
bash-2.05$ freedroid
Display size = 480x640
WARNING: failed to open config-file: ÀÂ
Found new graphics-theme: classic
Found new graphics-theme: lanzz
Game starts using theme: classic
QT_GetMachine: /proc/deviceinfo/product is 'SL-C3000
µq@@$÷ÿ¿èöÿ¿t“q@ý‚@t÷ÿ¿øöÿ¿ðõt@”|p@'
 detected machine is 'Sharp SL-5000D'
QT_GetRotation: Read spec from 
'/tmp/qtembedded-zaurus/QtEmbedded-0.spec'
 spec is 
'Transformed:Rot270:Vga:0'
 Rot=3, Qvga=0
QT_SetVideoMode: argSize=640x480
QT_SetVideoMode: qteSize=640x480
QT_SetVideoMode: fbSize=480x640
QT_SetVideoMode: qteRotation=3
QT_SetVideoMode: userRotation=-1
QT_SetVideoMode: sdlRotation=3
QT_SetVideoMode: qteKeyRotation=3
QT_SetVideoMode: sdlKeyRotation=3
ERROR: Couldn't load image 
/opt/QtPalmtop/share/freedroid/graphics//title.jpg: 
Unsupported image format
 
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Termination of Freedroid initiated...Thank you for playing 
Freedroid.