MQL for domains:
[{ "id": null, "name": null, "type": "/type/domain", "!/freebase/domain_category/domains": { "id": "/category/commons" } }]
The suggestion "!/freebase/domain_category/domains" is to restrict things only to Commons (official) - otherwise you get a domain that is automatically created for each user and probably not the one you need.
Types in the domain:
[{ "id": null, "name": null, "type": "/type/type", "domain": "/cvg" }]
Replace "/cvg" accordingly.
Instances of type:
[{ "id": null, "name": null, "type": "/cvg/computer_videogame" }]
Replace "/cvg/computer_videogame" as necessary.
That should at least start with you.
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