Nintendo will release The Legend of Zelda on mobile this year, The Wall Street Journal reports.

WSJ sources claim development is being handled by Nintendo in conjuction with Tokyo-based mobile giant DeNA, and that the game will be released in the second half of this year.

Those same sources also claim that the previously-announced Animal Crossing mobile title is likely to be released in the latter half of 2017, prior to Zelda.

It's not clear what business model Zelda will use. The full version of Nintendo's last mobile title, Super Mario Run, is US$10. Fire Emblem Heroes is free-to-play with microtransactions, but a Nintendo representative described it as "an outlier".

After years of resistance, Nintendo finally embraced mobile in 2015, and has released Miitomo, Fire Emblem Heroes, and Super Mario Run since.

However, in March this year Nintendo president Tatsumi Kimishima said the company was disappointed with the revenue earned from Super Mario Run.

Mobile games have yet to add significantly to Nintendo's the bottom line, earning less than ¥20 billion (US$176.4 million) in the fiscal year ended March 2017.