Still playing UFO Aftershock.
It is a very long game. Which isn't a problem in itself, except a lot of it feels like padding. It's turning into a bit of a grind, really.
To be fair though, that's how a lot of xcom-likes tend to go down late game. You have to wait for a critical piece of research and have to do a bunch of shitty missions that are all pretty samey.
That was the issue I had with Firaxcom games and PP, not so much with the original UFO games, Aftermath and xenonauts. Barring terror missions and UFO landings you can just ignore the ones you shoot down and in Aftermath you could just delegate the missions you don't want to do to the CoE. Afterlight sort of "fixed" the late game grind by allowing you to build rocket installations that prevent enemy attacks on your territory, but they aren't that reliable and the game flat out cheats sometimes and scripts in a beastmen attack on your main base even though they are nowhere near it, so it's still pretty tedious late-game.
I do like Aftershock, but fuck me is it rough. Very ambitious, a lot of neat ideas, very, very buggy and some idiotic ideas too. Think Dark Souls 2, xcom-like style.