NO GAME DATA FILES ARE INCLUDED.
ScummVM provides a way to play many classic graphical point-and-click adventure games and RPGs - such as SCUMM games (like Monkey Island and Day of the Tentacle), Revolution's Beneath A Steel Sky, and many more. NO GAME DATA FILES ARE INCLUDED; you must supply your own.
You can find more information, demos, and some free-to-download adventure games on our website. See also an up-to-date list here: https://wiki.scummvm.org/index.php/Where_to_get_the_games
A quick-start guide is available on our website at https://docs.scummvm.org/en/v2.7.0/other_platforms/android.html which provides some more information, explaining how to configure Android-specific options and where you can find further help.
https://forums.scummvm.org/viewforum.php?f=17 is our web forum where you can discuss the Android version.