It becomes quite repetitive mid way through the game but the start and end are great just I feel like you should get a greater reward for beating the game such as a quest system using rockets.However the game in general is amazing and I definitely for anyone who hasnt tried it yet to give it a go. Also the new multiplayer update makes the game 10x better with friends.
Summary, the games and if someone hasn't played it yet I strongly recommend they do.(I recommend only reading the paragraph after this alone because this is the most important one).
Another feature that would add a bit more survival into the game is the need to repair fragile equipment(in storms/meteor showers) such as solar panels and wind turbines. Also being affected by radiation if the nuclear reactors were damaged.
Then if possible it would be cool if the jetpack could go higher but at the cost of fuel. An auto refilling jetpack or a manual one I don't care as long as it work because I know how hard it is to code.
Next on the huge list of ideas is an outside storage for later on in the game so you don't need to put down an extra little shelter.
Beds would also be useful as a spawnpoint also allowing there to be a day and night Time rather than just day.
New items such as gravity boots(no fall damage whilst equipped) would be cool and helpful earlier on in the game before we have access to jetpacks'.
Hope you enjoyed reading this I have more ideas but amma save them for until any of these get added, if they get added.