One more demo update made:

Many were complaining about camera behavior, so I've changed it: now if something obstructs camera vision of character - we have this small transparent hole. It should be much easier now to navigate through the world

Few other changes are:
Improved hints for missions.
Bridge mission made easier (more tolerant criteria to whether bridge is considered built)
Changed lightning in Ovanox (the yellow world)

Make sure to restart Steam to get the update! :)

Thank you everyone, who touched the demo on its first day of release!

I've gathered a lot of feedback - and here is a hot update, where most of the issues are addressed:
1) Polished character movement (even when the surface under you is terraformed, the movement is still smooth)
2) Polished camera and reduce depth of field
3) Improved hints (much more difficult to miss them now)
4) Improved text readability
5) Added new Quest
6) Added Radio - find Radio Tower, fix it and use M to tune to your favorite station. Now you have options to have Chilled, Super Chill, or Energetic Chill vibe in the game :)
7) Improved last quest, so that you won't miss the portal thing

Feel free to get the updated demo on Steam (restart your steam to get the update, if you already have game downloaded).

The Great Fluctus Demo on Steam

Stay tuned! :)