# Standard

To launch a game, the Operator must call the [game-api](https://docs.thndr.io/integration/launch-game/standard/game-api "mention").

THNDR responds with an HTML page that should be displayed on the Operator’s website.

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The Game API URL can be loaded in either:

* an iFrame (recommended), or
* a full-page redirect.

Once the game is displayed, THNDR sends a server-to-server [authenticate-users](https://docs.thndr.io/integration/launch-game/custom/authenticate-users "mention") request to the Operator’s platform. This request validates that the player session and related information are correct.