app.js

app.get('/lobby/:id', function(req, res) {

    db.games.find( { name: req.params.id }, function(err, game) {
        if (err) {

            res.render('404', {
                title: 'Game not found',
                message: 'Game ' + req.params.id + 'not found'
            });
            console.log('error');
        } else {

            res.render('lobby', { title: 'Lobby', name: req.params.id });
            console.log('hops');
        }
    });
});