Is Minecraft on the smartphone with the Internet flat but playable without data volume or should I prefer to be?
If you play the singleplayer mode Minecraft is of course playable without data volume! However, if you play with other players or on servers you use up your data volume or Wlan.
Otherwise, just try it with disabled mobile data and see if it works…
Problem is that I have no Wi-Fi and no data volume in the next few days and then it could only play with the very slow Internet wanted to answer the question actually before I buy it (so the game) anyway many thanks for the answer
You have already given yourself the RIGHT ANSWER!
Stop messing around…