The ASA recently found that Funplus, developer of King of Avalon: Dragon Warfare should only use images from its own game in advertising.
Through its agency, the developer actually promoted a Tweet using a screenshot from a different game. Though this is a UK regulator, the rule would certainly be the same in the US.

/Passle/5a0ef6743d9476135040a30c/SearchServiceImages/2026-03-02-15-44-59-583-69a5b07bfe4ddbcd496d2bf1.jpg)
/Passle/5a0ef6743d9476135040a30c/MediaLibrary/Images/2026-02-28-23-34-09-665-69a37b71b4761ae8f05112dd.png)
/Passle/5a0ef6743d9476135040a30c/MediaLibrary/Images/2026-02-23-22-36-48-266-699cd680304bae27518b0c0e.png)
/Passle/5a0ef6743d9476135040a30c/MediaLibrary/Images/2026-02-23-22-32-15-805-699cd56f994bc9b52c44e804.png)