Japanese developer Donuts announced a new mobile title Lost Kingdom (ロストキングダム) along with a website that contains a teaser video today (28th June).
The teaser suggests a somewhat medieval setting. It seems like players’ character will be a warrior that kills monsters.
The teaser site is now having a count down clock, hinting that there will be more announcements nine days later (7th July).
Official website: https://www.lostkingdom.jp/#