Spent my first hours exploring the first planet I was dropped in. It was a rocky planet with some vegetation and animals. The plants were mostly desert like - cactuses and such, no large forests. A lot of minerals to mine and large underground cave systems that were easy to get lost into. I quickly started to fill my inventory with different minerals and elements, gold, plutonium, titan etc... so started to concentrate just for those few elements that I needed to repair my ship.
Managed a 87% completion on the planet exploration. I'm not sure what counts for that number as while I did scan all plants and animals I came across, I'm sure there must be more outposts and monoliths etc to discover. I hadn't come across any new animal or plant species for ages, maybe I need to take my spaceship to the other side of the planet and see if there are new lifeforms there.
Really enjoying the game, I've only explored one planet and just got on another very barren looking planet where there was some beacon. I was guided there by the Atlas, Can't wait to explore more, I passed a space station on my way, I'm eager to land there and see what's inside.
I can see the game maybe getting repetitive after I see more planets, especially as I guess there won't be that much real diversity to the locales - such as no big civilizations in any of the planets, just more or less hostile nature.
It would be nice if there were a handful of planets that were "hand made" by the developer, not seeded by an algorithm, to have more variety, poles, oceans, deserts, cone or two bigger settlements or even cities. You'd be able to discover them by (small) chance or be given the coordinates in the story mode,
Though, that's not probably technically possible, considering the size of the planets,
I'm getting very Elite like vibes from the game, and that's a good thing. This is something I dreamed about when I played Elite on my C64 in the 80's