(No real spoilers in my comment):

Great game, but if you get stuck for a long time, just look up some spoilers. Multiple times I abandoned the "right" approach to a problem because I couldn't get it to work and wasted countless hours trying to solve it the wrong way - only to find out I should have stuck to the right approach.

The game doesn't give any guidance, and wasting those hours is not rewarded.

The only other tip I'll give:

When you first play the game, spend the first 1-2 hours on your little planet learning everything (how to maneuver, how to use the signalscope, etc). Once you leave the planet, a timer will start. There is no way to "save" the game. You will die when the timer runs out. Don't panic. That's expected. Don't try to figure out what you did wrong to die - you will die no matter what. The game will restart, but anything you learned in the past will be in your computer's memory for retrieval.

OK, 2 more tips (one I wish someone had told me - I finished the game without it):

1. You can make time go by if you sleep at the fire.

2. There is a way to "meditate" until you die. This is very useful when you get stuck and can't get out of somewhere. To find out how to meditate, talk to the people on other planets (you may have to talk more than once before he teaches you).

That's all I'll say.