let the user play with no cookies, simples dont try insert info to database.

It's possible?

no, without any dedicated session-information having a clear reference to that visitor it is not possible to crypt/decrypt results (which new v3.x games do).
I don't have an idea yet how to store that information/reference without cookies and to make sure after playing to pull this one sessiondata that was started by that user - just imagine more than one guest is playing at the same time...

Having a normal user the userID is the reference, no problem - but guests...

I get this same error with some registered users.

Here's a link to the reported problem from one of my members :
arcade timeout and SQLerror


I can get you admin access or whatever if you need to check it out.

with registered users? Can you reproduce it?

If so, please provide AdminCP+FTP access via PM and tell me how to reproduce this error, then I can fix it :)

Well, from what the people on my forum have been stating. The error appears to be due to being timed out. If they play for too long and are timed out, they recieve the error.

Ok, this makes sense... If you get logged out, the arcade can't read your sessionid for that game - will think about a solution for this...