Sorry if this has been asked before.
Is there any way other than turning it off in Settings to disable the power saving screen dimmer kicking in during game play ?
There is a way, but it has to be done in Objective-C code.
You can put this code into CodifyAppDelegate.m, when the application has finished launching:
[[UIApplication sharedApplication] setIdleTimerDisabled:YES];
Cheers Simeon ! Will give it a go.