Hello guys!

I'm looking for a visual novel / interactive fiction about exploring space / visiting new worlds, I don't mind NSFW or anything like that but I just wan't a cool story with some creative ideas, new planets, new creatures etc. i've been looking yet can't find one that fits them all, and even thinking about creating one myself if I can't find one haha. 

any ideas? 

I do not know of any game like that. Something like that is one of currently two choices for my next project in a month or two.

But to kill some time until such a game comes out, I can recommend you films like ‘Interstellar’, ‘The Martian’ (though it is only Mars) and a few others. Or just read through Wikipedia about Exoplanets or even about our solar system’s planets and moons. Same goes for such articles on NASA or ESA websites. I also remember some series about exploring a new world but usually they remind me too much of earth with a few aliens added.

I hope that helps a bit for a while.

HypersDev  

I recommend Space Rangers.  there are interplanetary text quests, Can you emphasize any of the ideas

go to the Old.game site again. There is a space theme, a lot of old games, but a lot of content for ideas

I completly forogt the one that comes closest to what you described: Subnautica!

It's early access but check out Yomi Alliance.

https://bruni-multimedia.itch.io/yomi-alliance

Starlight Drifter checks some boxes but was a disappointment.