Hopeless 3: Dark Hollow Earth is an Android app developed by Upopa Games (121 Menachem Begin Road, Azrieli Sarona Tower, Tel Aviv). Others apps created by Upopa Games are: Hopeless, Hopeless 2, Hopeless Heroes.

Hopeless 3: Dark Hollow Earth first became available on 22 Feb 2017. It is estimated that Hopeless 3: Dark Hollow Earth has been downloaded between 5000000 and 10000000 times from the Play Store.