So, I was looking at the way fleet combat is played out, and while it is relatively simple, it is pretty paper thin, biggest fleet size always wins. But there are so many factors in a space battle that just a flat fleet doesn't account for. Many times a smaller force has prevailed with sheer luck or good planning, and I think our little game can reflect that.
What I propose is simple, instead of having the highest number win, we use what we already do for everything else, a d6. Whenever a fleet engages another fleet or a planet you take the fleet score or system score and roll that many dice(Or in a systems case twice that many dice.). For example:
A 4 fleet and a 6 fleet meet in battle, the 4 fleet rolls and gets 3, 5, 1, 3 which totals out to 12. The 6 fleet rolls and gets a 6, 5, 1, 3, 4, 2 which totals out to 21, so the 6 fleet wins and the 4 fleet suffers losses.
In another case with the same two fleets, the 4 fleet rolls 4, 5, 6, 4 totalling out to 19. The 6 fleet rolls and gets 2, 3, 1, 1, 4, 5 totalling out to 16, in this case the the 4 fleet wins and the 6 fleet suffers losses.
This would give some chance and danger in the galaxy, even to super strong fleet sizes, because there is a chance they can get unlucky, so players will be more tactical and not just have one super crazy fleet going around that is undefeatable strictly because its size.
This offers lots of new options for technology too. Maybe a 'focused laser' research makes damage More reliable, so that whenever you roll a 1 or a 6 it is bumped to a 2 or a 5 respectively! This also allows for modifiers, does a ship have a certain type of armor? Maybe it reduces an enemies dice score by 2 points, or do they have missile tracking, making the losses that you produce on a victory much more significant?
All and all I think we can add some depth, and maybe change some rules, thoughts?