https://www.polygon.com/2018/3/15/17122398/ark-survival-evolved-mobile-free-to-play-ios-android

Ark: Survival Evolved has been a constantly growing and adapting experience — appropriate, for a game that’s all about surviving in a prehistoric world — and it’s coming to mobile devices this spring, publisher Studio Wildcard announced today.

War Drum Studios, which brought Rockstar Games projects such as Bully and multiple Grand Theft Auto titles to mobile devices, is handling the mobile version. In fact, it will be “designed and developed” by War Drum, according to a news release from Studio Wildcard.