> Imagine you're entering a country at the airport. The border agents seize your laptop and force you to unlock it
If this concerned me I would just wipe the drive and/or factory reset the device before travelling, and restore it later, rather than try to experimentally figure out what games I can and can't play with the customs authorities.
This is the approach that people I trust recommend. Some go further: not only should you not take sensitive data across borders physically, you shouldn't rely on your devices (or undeveloped film, for that matter) not getting wiped at the airport.
If this concerned me I would just wipe the drive and/or factory reset the device before travelling, and restore it later, rather than try to experimentally figure out what games I can and can't play with the customs authorities.