A new trailer announced RollerCoaster Tycoon 4 Mobile to the world today, but going by YouTube ratings the world isn't impressed. At the time of writing, the video has just 49 likes and an incredible 1,968 dislikes. Fans are taking to social media including the series' Facebook page to voice their anger, with criticisms centering on the move to mobile and the likelihood of a free-to-play system with microtransactions.

The game is in development at mobile-focused startup On5 Games, and it's "coming soon" to iPhone, iPad, and iPod Touch. It's the first game in the long-running series since the 3DS' RollerCoaster Tycoon 3D in 2012, and the first numbered entry in around a decade, since RollerCoaster Tycoon 3 in 2004. It's a series with its roots firmly in PC, and RollerCoaster Tycoon 4 is the first mobile version of the theme park-building sim.

Free-to-play games are enduring increasing criticism for their use of microtransactions, with high-profile games like Dungeon Keeper, Where's My Water 2, and Angry Birds Go coming under severe scrutiny in recent months. Last month, the European Commission met with national authorities, Apple, and Google to discuss free-to-play games, and outline measures to better regulate them and to prevent misleading marketing. [Image: Atari]