The game is having everything redone as part of the game's 20th anniversary.
One more beta is planned before launch on PC and PS4.
Klei Entertainment's game debuted a Steam page before it was supposed to debut at the PC Gaming Show.
An announcement from Firaxis is expected, as well as a new game from Klei Entertainment, makers of Mark of the Ninja.
This new Big Brother-esque horror title blurs the lines between reality and tech.
Time to decide which side you're on as the public beta goes live next month.
It begins at 11:30 PDT / 2:30 EDT.
E3 2015's first day is wrapping up, but the day isn't over until the PC gamer gets the spotlight. It's almost time for the PC Gaming Show!
An intriguing new presence has been announced for this year's inaugural PC Gaming Show at E3. It's Microsoft, who will be presenting Windows 10, DirectX 12, and also a slew of upcoming Xbox games.