As I casually play dunelegacy, and started poking in it. Both game balance and engine fixes are available https://github.com/katlogic/dunelegacy (merges SF repo upstream). Some of the things in there might be good to cherrypick into official dune legacy as others have expressed it in wish lists.
In no particular order:
Hotkeys:
And also some dubious game rebalances:
- Old AI (which is more suitable for campaign/skirmish) harvester spam throttled (number of refineries impact build rate now, and AI builds only 25% more harvesters than refineries).
- Sandworms drop large spice field, but only if there is no spice left on the map.
- Devastator explosion -250HP
There are more rebalances in ObjectData.ini (ie rocket turrets buffed etc), but that's more of a personal preference, rather than hardcoded engine change.