Simple solution ? Fleet tactics and fleet formations , without those options doom stacks are the only choice. How big is the stack only depends on how fast you can bring them all together. Faster speeds = more stacks , Warp Drive = 1 Mega Stack.
First post on the forum, so hello to everyone.
Just an idea:
I'd tackle the doomstacks by introducing a simple supply line mechanic. I.e., let's say there would be station modules dedicated to supply fleet operations, like instead of a hangar you install a supply depot which has a capacity of supplying N fleet units and has a range of R light years around. Operations inside the radius are cheap for the N covered units, outside of it are expensive. A bit like the Crew Quarters maintenance bonus or in fact just an extension of it. The bigger the fleet, the more you have to build.
This would cause the following effects:
-Forward bases would be a thing now on the gameplay. Gaining a foothold and building and defending supply hubs would be a must if your intentions of territorial conquest are serious.
-Supply depots would be a priority target. Leaving undefended forward bases could very well mean the end of the invasion by making it too expensive, if they're lost.
-Would disencourage lengthy unsupplied operations with huge fleets on enemy territory.
And I'll add some side tweaks:
-The highest tech tier of the supply system would grant the ability to mount the supply modules on battleships or maybe transports.
-Occupying planets should still give some resource yield to the occupier.
-Occuppying may grant a proportional part of the resource stack of the sector.
With this -and some stats rebalancing- I would expect that invasion armies would be actually playing a role other than denying the enemy the income of planets. Increases the strategical value of wealthy systems as well, as they can support your war effort on the offensive.
In short, supply bases and planet occupations are meant to encourage the attacker to divert forces to protect them to some extent. Still room for blitzkrieg but with a soft limit to it.
But you'd still need to stop, bomb the planets and take them over. This means that a defender has time to react. The biggest question with this is: How would the AI handle it? Are they going to try and occupy every planet or do they do so only with some planets, that are at completely different places. Of course, there's the possibility that the AI may be competent at it, but I wouldn't bet on it.It would still be possible to snowball a constant war if you did it right. For example, you could loot the supplies of a planet then move on to the next one, so your fleet only rarely had to rebase. I do like this in general though, and welcome to the forums!
Simple solution ? Fleet tactics and fleet formations , without those options doom stacks are the only choice. How big is the stack only depends on how fast you can bring them all together. Faster speeds = more stacks , Warp Drive = 1 Mega Stack.