Rollercoaster Tycoon 4 publisher Atari has promised that the game's PC version will be very different to the microtransaction-funded incarnation headed to mobiles.

The fourth main entry in the series was announced last week - initially just for iPhone, iPad and iPod Touch - but word of a PC version quickly followed.

"We can't share that much, but [PC] will definitely be a completely different game," Atari exec Anthony Chien told Digital Spy. "There's a lot of diehard RC fans that want a PC experience, they want all different sorts of things. It's trying to deliver as much as we can.

"First is the mobile version, then it's the PC experience. I think a lot of people are vocal about wanting to see the PC version first before the mobile, but our strategy is mobile first."

The iOS version of Rollercoaster Tycoon 4 won't be a free download despite its free-to-play mechanics for speeding up build times.

"The game will come pre-loaded with over $5 of in-game currency, with the value of in-game currency you're getting more than what you paid for," Chien concluded.