ftp.nice.ch/pub/next/games/fun/Guesser.s.tar.gz#/Guess/guess_main.m

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/*
 *     Generated by the NeXT Interface Builder.
 */

#import <stdlib.h>
#import <appkit/Application.h>

void main(int argc, char *argv[])
{
    NXApp = [Application new];
    [NXApp loadNibSection:"guess.nib" owner:NXApp];
    [NXApp run];
    [NXApp free];
    exit(0);
}

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Marcel Waldvogel and Netfuture.ch.