MAG and Warhawk are 2 almost-forgotten Sony titles that immediately come to mind for me. MAG was one of the biggest MMO FPS games that was out on console during its time. I always found the game's setting to be fascinating because it's a prime example of 2010s futurism.
>Set in the 2020s (ironically 2025 to be exact)
>End of History and globalization in full swing
>Near future rugged military aesthetics
>A bunch of badass PMC factions fighting a shadow war against each other for profit and resources
Warhawk on the other was just an overall entertaining online 3rd person shooter game
>Both infantry and vehicle combat were entertaining
>Cool map designs
>Customization that didn't go over the top and felt perfectly fitting for the game's setting
>Unique aesthetic, almost feels like it takes place on an isolated human planet in the 40k universe that was somehow never discovered by the Imperium of Man after the Age of Strife
>Type of game you can always see yourself coming back to it every now and then for some fun
>Sony pulled the plug on the game, but still has a small cult following player base that still keeps the servers alive to this day
Both have a lot of potential in today's market, but it's guaranteed that Sony would somehow fuck it up.