Hi there,
Thanks for your kind words! We're happy your enjoyed the game :)
1. We don't have a confirmed release date yet, but we are hoping to have the game ready for release some time in 2022.
2. You will only need to download the latest/more complete build. (e.g. right now, that is v0.16.1)
Hope that answers your questions okay!
And your English is good :)