I love Underrail and looking forward to the next expansion. I do not want the game end there and hope they will be working on a second expansion (DLC).
(Use ctrl + middle mouse scroll to zoom in and out of the website to view the full images - due to their large size).
I got inspired by the new expansion and a BioShock concept art I saw a long time ago.
As you can see isometric view and underwater theme look awesome together.
I believe it is possible for the game to create an underwater environment for players to explore but there would need to be a lot of new additions added into the game, for example new weapons types each weapon category that will work underwater (future aqua-tech) and the ability to dive down/navigate under water.
With the current expansion we got something like this.
Now we could get something like this in the second expansion.
With new equipment types.
It isn't that hard to fake an underwater look and create the feel and theme, I believe it can be done with the game engine.
I think it would look something like this.
This is just an idea and there are many ways it could be implemented.
I have not planned it all out but just came up with the concept and thought I would share it.
What are your thoughts on it?