1. Download from Old Chaos site using your mobile phone (recommended) or your PC, and put the APK to your Phone
2. Once Old Chaos' apk has finished, you can install the application, a message box will prompt, from the message box choose install.
3. A message box will prompt choose allow or similar to allow (will depend on android version)
4. To install choose allow other/unknown sources.
5. Once application is installed. Choose start gam
6. From start game a message box will prompt and will ask you to choose from ignore or download.
7. Choosing ignore from the message box will automatically direct you to play the game, but most of the cases upon warping it will download the maps/npc/items and then you're good to go.
8. Choosing Download will download all the files needed to run the game smoothly.
9. Patching, the app will be automatically upon opening the game, as long as there is new update or bug fixes of course.
10. Happy gaming Rok on!