As seen on RPS: http://www.rockpapershotgun.com/2015/10/07/emily-is-away-chat-client-game/
Developer's description:
Hi-res in-game screenshots:Remember a time before Facebook and Skype? When Windows XP was the next big thing and AIM was king. Relive that era with Emily is Away. Create a screenname and browse buddy infos in this chat-bot-meets-adventure game.
“Explore your relationship with Emily, a fellow high school student, in a branching narrative where you choose the outcome. And most importantly, change your text color to lime green so people know you’re the coolest kid in school.
Gameplay trailer: https://youtu.be/LHpf9k1O01c
Website here
Whew. I have no idea what the story is about or how the branching narrative will play out, but damn if those sound effects don't take me back. There's been a lot of 90s nostalgia pandering on the Internet in general lately, but this looks like it'll be actually authentic and interesting.