one thumb mobile

dedicated independent MMO studio


One Thumb Mobile is an independent game development studio focused exclusively on making genre defining, free-to-play massively multiplayer online games for mobile and tablets. Tech-savvy, single-minded and hugely ambitious, we pioneered the mobile MMO genre in 2011, launching our flagship game Celtic Heroes for iOS.  Since then Celtic Heroes has been constantly expanded and improved and today it is one of the highest grossing 3D MMORPGs in the App Store, having been downloaded over 1 million times.

But this is just the start of our ambition and plans for Celtic Heroes and MMO gaming on mobile. Proudly profitable, successful and fully independent from both publishers and financiers, our freedom allows us to focus all our relentless energy and care on crafting games of the upmost quality, nothing more. We are expanding rapidly, with ambitious growth and development plans. If, like us, you are passionate about the future of MMO gaming on mobile and want the chance to leave your mark, visit the jobs page to find out more.

latest news

latest tweets

Our Tides of Fate update to our flagship title; 3D MMO Celtic Heroes is now live on iOS and Android! https://t.co/2uMTZDowKV 15:26:05 Oct 12th about a month ago . Reply . Retweet . Favorite
Our Winter Event update to our flagship title; 3D MMO Celtic Heroes is now live on iOS and Android! https://t.co/enbBaWymPS 16:13:53 Dec 21st 11 months ago . Reply . Retweet . Favorite