I'm a trans woman so of course Portal 2 is one of my favorite games of all time but hear me out.
In a time period where irony was seen as the height of comedy, where everyone was poisoned by the idea of being as unserious as possible, and where the comedy of online culture had oversaturated to the point of being nauseating, the writers at Valve... understood.
They got what it meant to be sardonic. They understood wit and cheekiness and, god, mean lesbian robots. The first game was fun beyond measure, a puzzle game with some of the coolest new mechanics in a long time, and then the second game... was something TRULY special. It's like Portal 1 was a prequel, a setup, or a tech demo to what could really be done with portals.
And then Portal 2 blew it all out of the water.
Between Wheatley being not a moron to the explosive lemons to the moon dust, Portal 2 is a non-stop rollercoaster of uproariously witty and on-point writing. The gameplay remains fun and engaging throughout, and there is never a point where you're bored or tired of the dialogue, it just... it's a powerhouse. Truly and really, a fucking powerhouse.
One of the best games I've ever played.