Hi @amjadalmousawi
There are several tutorials online on how to work with Elementor and Pods: https://www.youtube.com/results?search_query=pods+elementor
first how to link these 2 pods on parent and child
Relationships are not parent-child aware, these are merely relationships. How you use the relationship will define this.
second how to make button linked dynamic
This will depend on how the Elementor module works. I would imagine that the URL field within the module can be dynamically populated.
Cheers, Jory
Assuming you have created two bi-directional relationship fields, one called downloads on the games post type, and another called games on the downloads post type, you can create a link for the relationships using a shortcode within Elementor:
Display downloads on the games post type:
[pods]
[each downloads]
<a href="{@permalink}">{@post_title}</a>
[/each]
[/pods]
Display games on the downloads post type:
[pods]
[each games]
<a href="{@permalink}">{@post_title}</a>
[/each]
[/pods]
Using [each] and [/each] allows the relationships to contain multiple items. If either is a single-select relationship, the each statements could be removed, {@permalink} replaced with {@games.permalink} (or game or whatever the field name is), and {@post_title} replaced with {@games.post_title} (or game or whatever the field name is).