Shinsekai 4.0.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application was originally designed by CAPCOM CO., LTD. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. Shinsekai for Mac is included in Games.
From the developer:
Shinsekai Into the Depths is a fresh and thrilling deep-sea adventure game. The land has slowly but steadily been covered with ice, forcing mankind to take refuge in the ocean. Even the sea cannot protect them forever. The ice overtakes the undersea home of a lone aquanaut, forcing an unplanned journey of exploration and discovery.
You may want to check out more software for Mac, such as MicroWar, Bubblegym or A Tack!, which might be similar to Shinsekai.