This applies to the Portal app specifically, not FFXIV.
I can’t find a public link to the announcement. You can find it in the Final Fantasy Portal app on both iOS and Android. It’s dated 26/08/2024. However for convenience, here’s a full copy of the announcement text.
Thank you for using the FINAL FANTASY Portal App.
Regrettably, service for the Triple Triad game within the app will be ending on November 25, 2024 at 6:00 PM PST/November 26, 2024 at 2:00 AM GMT. (Service for the FINAL FANTASY Portal App itself will not be ending.)
The team would like to apologize to everyone who uses the app for ending this service.
Ever since introducing the Triple Triad game to the FINAL FANTASY Portal App on August 20, 2015, we have continuously strived to improve the quality of the service. However, it recently became clear we would not be able to maintain the same standards going forward, and as a result we have decided to remove the game from the app.
We would like to sincerely thank all of you who have enjoyed playing Triple Triad till now and apologize for having to end this service.
■End of Service Schedule ・Triple Triad End of Service Announcement (This Notice) 8:00 PM Sunday, August 25, 2024 (PDT) 4:00 AM Monday, August 26, 2024 (BST)
・End of GIL Sales (Same Time as this Notice) 8:00 PM Sunday, August 25, 2024 (PDT) 4:00 AM Monday, August 26, 2024 (BST) (Any GIL users currently possess can be spent until Triple Triad is removed from the app.)
・End of Service 6:00 PM Monday, November 25, 2024 (PST) 2:00 AM Tuesday, November 26, 2024 (GMT)
■ Item Exchange for Triple Triad Cards We will lower the required number of points to 0 for all Triple Triad cards accessible via the “Triple Triad” option under “Item Exchange” within the app until the end of service. (Please confirm that the number of points listed on the exchange screen is also “0” when exchanging points for cards.)
There is not much time left until the end of service on Monday, November 25, 2024 (PST)/Tuesday, November 26, 2024 (GMT), but we hope you continue to enjoy playing Triple Triad until then.
Sunday, August 25, 2024 (PDT)/Monday, August 26, 2024 (BST) FINAL FANTASY Portal App Team
It's a micro transaction game with basic multiplayer. I would assume the player base is so small it's almost non existent.
Could be that the cost of the servers is higher than the profits. Could be that there was one person left who knew the code and they decided it was easier to twilight the game instead of teach another person how to maintain it.
I played a dope free Triple Triad web game in like 2004 or something. I loved it.