Tech Tree structure

[Osito]

Just wondered whether anyone has thought about building a tech tree that runs vertically instead of horizontally?

I guess you'd be limited to seven research lines in each tech field (or maybe seven and a half if you include the zero tree), but what interests me is that it seems to provide an unlimited (or at least much longer) length of accessible tech tree.

[Locarnus]

DW:U modding is very restricted and centered around vanilla game.
There are multiple undocumented limitations if you stray from vanilla.

For example I modded the tech tree (see signature) and found out the hard way that research project costs over a certain max size 128m or so crash the game.
And you have to take into account that people can change the base cost in game setup, so you need to take the scaling into account.

In my mod I had to limit all level 9 + research projects to level 8 costs manually!

Also the connecting arrows only work ok for research connections from left to write, not vertical or backwards!

And there are multiple such restrictions, all undocumented. It is a pain...