Wow it's been a while since last questions - really sorry, we've been busy.
Q: Fly fishing?
Not at release date. Probably as later update or DLC.
Q: How work the progress system?
Every fish is giving you EXP. You will reach levels and improve your skills.
Q: Will be there hints?
There will be a fish encyclopaedia.
Q: Will players be able to ride on each other’s boats?
Yes!
Q: Release date?
We moved release date to October 2017.
Q: DLC? What kind?
Maybe grenades, electricity and some fun? IDK 😉
Q: Survival aspects and RPG elements
RPG and survival elements are just an addition to the gameplay. Our main goal is still fishing.