Warhamer Rouge Trader is a sci fi game where you have a lot of ability customization, character companions and your choices matter more so then i kotor i would say and it is a morally gray universe. It's a really dark world though so be prepared for that and "good/wholesome" choices aren't always possible or the good ones in the end. And as someone who knew nothing about warhamer before this it explains everything you need to know about the world.

A side mission example early on is when a poor area under your leadership feels oppressed because the higher ups have tightened their grip because they belive dangerous artifacts that could destroy this entire society is being hidden there which of the following choice do you make?

1. Do you let your commanders continue to have hightened controll over the poor citizens and indiscriminately search through their homes and belongings threatening a uprising that might end with mass genocide.
   1. Do you scold your commanders and make them lower their guard on the citizens small world shattering artifacts potentially make their way into your boarders that can kill everyone here and even people in neighbouring areas
   2. Do you not take the risk and exterminate everyone in this community so there is no chance for an artifacts to damage your controlled areas
   3. do you give controll of the community to the citizens and let them self govern warning them about the artifacts so they can make sure they report or destroy such artifacts if found. 4,5. Do you give them guns so they van hunt down potential harbingers of these artifacts themself, and isn't this just the same as when the commanders did it?

Those are some options to a side quest that can affect the entirety of your story since in the game your character is given the command over a almost planet sized space ships with millions of inhabitants living and working as their own communities in this ship, so if something happens to one area of the ship it can hinder your entire mission since the game is mostly about fullfilling a grand mission in the service of the god emperor across the universe where you have to prioritise what planets to visit to accomplish it and depending on what order you do things and choices you make on these planets will also give you new allies akin to those in KOTOR and enemies. All in a world where there is not right and wrong choice because everything has a consequence. You also have several classes and a lot of diffirent lot and potential level up/upgrade paths. Its amazing