Hi, so i was thinking and i have a huge improvement to the game which is going to take a lot of time, so the first suggestion would be adding some kind of weapons ( turrets, traps, guns ) as i noticed there is sulfur and also adding actual multiplayer.. Yes this will take a lot of time to make server browser and make some official servers which would wipe every 15-30 days and people would build their own defenses, bases, oil rigs or their own mines which is going to force other players to raid those bases or mines to get resources.. Yes this could get very frustrating but for me as player of "Rust" and other people which i talked about this and they actually loved it and made me write this.. Also there could be just PvE servers in which there would be more mines, etc. but for me personally it would take the game to the next stage if you just can imagine it.. having your own base with turrets around it and trying to protect the base from other players trying to get your loot OR your mines, oil rigs etc.
So that's about it. I know this is hard to answer but honestly i am loving this game and i am seeing so much potential in this game.. So much there can be done and so much there can be. So have a nice day, hope i didnt waste your time.