On:
http://schema.org/VideoGame

The last example (JSON-LD) is for VideoGameSeries, and employs the property "gameLocation".

<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "VideoGameSeries",
"name":"Mass Effect",
"genre":["ARPG", "third-person shooter"],
"author":"BioWare",
"character":{
"@type":"Person",
"name":"Shepard",
"birthDate":"2154-04-11"
},
"gameLocation":
{"@type":"Place",
"name":"Citadel",
[...]

However, while "gameLocation" is a valid property for VideoGame, it is not a valid property for VideoGameSeries.