Some thoughts:
- Music and sound effects are impeccable, the atmosphere was great while playing, very zen. Reminds me a little of Minecraft or BoTW the way the music drifts in and out (that's a compliment I love those games)
- I like the little colonists' messages to each other and thoughts. I think you could take this further with little dev effort. Have a bunch more random messages that can pop up depending on mood/stress level. Like instead of saying "Bob is stressed out" you could have Bob say "I miss my mommy" or something
- Not sure what the "point" is really beyond just building stuff. I think you could take the Minecraft approach to a "story" where like the Ender Dragon there is an overall goal but it's completely optional. That way players have a goal they can go after if they want, but they can also just build cool shit and vibe in your world
- It's a little jarring how the camera snaps to 8 preset angles. Might be better if the camera was freer but I don't know how difficult that would be to implement.
- Art is very charming, I love the way the colonists look and I like that some of them are animals, that's especially cute.
- Main menu music is a banger
Overall you have a great game in the works, can't wait to see where you take this.