According with [Wordpress: category page not for post's](https://wordpress.stackexchange.com/questions/3001/wordpress-category-page-not-for-posts).
I use wordpress to create web sites for flash games, so I don't have certain page for post's. I add each game by post-new.php?post\_type=game and u can see it's not the regular post for wordpress. Now I try make the same for tags, but stuck again. 
what I have now:

```
<?php
if (is_page() ) {
$tag = get_post_meta($posts[0]->ID, 'tag', true);
}
if ($tag) {
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$post_per_page = 4; // -1 shows all posts
$do_not_show_stickies = 1; // 0 to show stickies

$args=array(
'post_type' => 'game',
'tag__in' => array($tag),
'orderby' => 'date',
'order' => 'DESC',
'paged' => $paged,
'posts_per_page' => $post_per_page,
);
$temp = $wp_query;  // assign orginal query to temp variable for later use   
$wp_query = null;
$wp_query = new WP_Query($args); 
if( have_posts() ) : 
while ($wp_query->have_posts()) : $wp_query->the_post(); ?>
 <div <?php post_class() ?> id="post-<?php the_ID(); ?>">
    <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?    php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
    <div class="entry">
      <?php the_content('Read the rest of this entry »'); ?>
    </div>
    <p class="postmetadata"><?php the_tags('Tags: ', ', ', '<br />'); ?> Category in <?php the_category(', ') ?> |</p>
  </div>
<?php endwhile; ?>
<div class="navigation">
  <div class="alignleft"><?php next_posts_link('« Older Entries') ?></div>
  <div class="alignright"><?php previous_posts_link('Newer Entries »') ?></div>
</div>
<?php else : ?>

<h2 class="center">Not Found</h2>
<p class="center">Sorry, but you are looking for something that isn't here.</p>
<?php get_search_form(); ?>

 <?php endif; 

 $wp_query = $temp;  //reset back to original query

}  // if ($tag)

```

Basicly, I've just change '$cat' for '$tag' according with codex, but I have only page with search form from here

```
 <h2 class="center">Not Found</h2>
 <p class="center">Sorry, but you are looking for something that isn't here.</p>
 <?php get_search_form(); ?>

```

and don't nave any game for certain tags?