暗い部屋 Free

Features:
• Build a huge village
• Make important decisions
• Explore the world
• Fly into space

In English localization the name of this app is "A Firelit Room".

This game is based on an award-wining browser-based text RPG "A Dark Room" by Michael Townsend.

Some of the web version awards:
• Forbes, Daniel Nye Griffiths: Top 5 Anti-Games of 2013
• Indie Games: Top 10 Game Dev’s Favorites of 2013

Original web version:
http://adarkroom.doublespeakgames.com

The source code is released here under MPL:
https://github.com/illusionofchaos/AFirelitRoom

You can also check out "A Dark Room" for iOS by Amirali Rajan. Half of the proceeds from that game go to Michael Townsend, the original creator of the web version.