The game isn’t that simple though. You have a limited amount of fuel and hull strength and you will die if if either hit zero. Your hull and drill are pretty weak to start with also, so you’ll need to buy better equipment. I suggest getting better drill and fuel tank ASAP and then get a bigger storage unit. You can also buy a variety of items, the most useful one being a device that warps you out from the ground, no matter how deep you are.
The game map is HUGE. You will not be able to reach the bottom in one try and I’ve played this game for weeks and never reached the bottom. Obstacles will get in your way the further you go down and more spots will hurt your hull as well. Thankfully, the game has a save feature that is available above ground.
Check out this game; I highly recommend it. Be warned though; it’s highly addictive. Work will not get done upon clicking this link.