body: I would like to make an Android app which replicates a puzzle board game played as a small side feature within a popular action video game.
  
  
  * Am I allowed to create such an Android game with the same rules as the original game and publish it to the Google Play Store?
  * If so, am I allowed to use the same texture graphics from the original game?
  * I plan on making this app free to download anyway. However I'm curious, is it necessary to make it free to avoid copyright infringements? But what if the app has in-game ads which generate income?
  
  
  
title: Does making a mobile app using textures/content from a video game violate copyright?