choosing id when inserting a row

[Shadowing]

Im trying to choose what I want the id to be set to when I create a row on another table

 

using this code below it tells me "unknown column "id" in 'field list'

making me think it has to asign a random id first

 

<?php
				$d1 = "SELECT id FROM game WHERE id='".mysql_real_escape_string($_SESSION['user_id'])."'";
				$b1 = mysql_query($d1) or die(mysql_error());
				$c1 = mysql_fetch_array($b1);

if (empty($c1['id'])) { 

	$a1 = "INSERT INTO game SET id = '".$_SESSION['user_id']."'";


	mysql_query($a1) or die(mysql_error()); ?>

[Shadowing]

I fixed it i just had to add a id column first