Kakao Games is celebrating June, the month of the environment, by launching a user-participation donation event titled 'Return, Han River Otter!' for its mobile puzzle game, Friends Popcorn.

The premise is quite simple: if the combined total of hearts spent by Friends Popcorn players from June 15 to 30 hits the 10 million mark, Kakao Games will donate 30 million won to the WWF (World Wide Fund for Nature).

The donation earmarked for the WWF will go toward preserving the habitat of the otter, a Natural Monument No. 330 and a Class I endangered wildlife species. While otters act as a vital indicator species—signalling a healthy, stable co-existence within river ecosystems—they are currently facing existential threats from water pollution and habitat destruction.

To keep the momentum going throughout the event, Kakao Games is dangling a few carrots for the players. As the community reaches milestones of 1 million, 3 million, 7.77 million, and finally 10 million hearts spent, all users will receive rewards including extra hearts and 30-minute 'Golden Ryan' power-up tickets.

Seong Young-hwan, Business Director at Kakao Games, noted, "We’ve put together this event to share the significance of biodiversity conservation with our players during June's environmental awareness month and to join hands in protecting otter habitats." He added, "We intend to keep rolling out campaigns that allow our players to naturally contribute to social values while simply enjoying the game." Best of luck to all the players out there.