I remember being able to play poker and trivia with random strangers on cross country flights on the IFE screens. For some reason, they took that away, so I decided to make some myself.
The first two games are here: Poker -
* iOS: https://apps.apple.com/us/app/airplane-mode-poker/id6791247916
* Android: https://play.google.com/store/apps/details?id=de.testco.airplanemode.poker
Liar's Dice - * Android: https://play.google.com/store/apps/details?id=de.testco.airplanemode.liarsdice * [iOS still in review]
BLE was the choice to have it work cross-platform and support multiple players. There is no Internet access and there is no analytics or app tracking. The game literally doesn't ask for the permissions to access the Internet.
It costs $2.99 as a one time unlock to host and $0 to join a game.
Thoughts on other games?