RollerCoaster Tycoon 4 announced, is a mobile game

It's been nearly a decade since the last numbered RollerCoaster Tycoon game was released. Today, Atari has announced RollerCoaster Tycoon 4--and it's a mobile game for iDevices.

Developed by On5, RollerCoaster Tycoon 4 Mobile has been "reimagined" and will offer social features, leaderboards, and achievements. According to Atari, the game will offer 20 pre-designed coasters, as well as numerous attractions and features for customization. Coaster blueprints can be shared via Facebook and Game Center support.

The game will be available in early Spring, but interested gamers can sign up for updates on the game's official site to receive bonus in-game gifts. Surprisingly, the app won't be free-to-play. Atari says it'll cost $2.99 when it launches later this year.