Terracore not just a survival game as you have to collect more coins to be able to defend yourself and your planet and you have to play well and to keep your items safe.
All you have to do is collect a coin of scrap and this coin is what left after disaster so you have to keep yourself safe and your items let's this is a challenge and you also have to upgrade yourself to keep on and get more rewards.
So it is not just a game of collecting coin as it is fun and when you play more so you will get addicts to it as you will feel that you are in a a real challenge and you have to keep your scarp safe and your items from enemies attack.
It is not just survival as you are not alone and everyone trying to steal from you so you have more items and you have to collect everything in the battle and after that you will be a good citizen in terrracore.
But do not forget to upgrade yourself as I have said because you first would collect scarp slowly and when you upgrade yourself, you would be much better.