[quote=@Terminal]
[@Willy Vereb], I am aware of different forms and permutations of FTL. Regardless, the speed limit applies to all of them - including FTL which uses superpositioning as well as discontinuous wave-function fallthrough (which according to common sense would travel from point A to B instantaneously). That said, your stated advantages and disadvantages to using non-jump drives are valid. Different forms of FTL will have their pros and cons, especially when used in naval battles.

OOC going up in a few hours, incidentally. I'll send everyone who expressed interest a PM once it's done.
[/quote]Well, like I said, I don't particularly have a problem with the spirit of the limitations.
Not sure if they are explicitly needed but I don't mind them either.
The only issue is that you only defined them by the typical "hyperdrive" mechanism.

Travel speed is easy to get around. It only determines how fast you can get from point A to B.
So perhaps the instant jump drive can only make 1400+ lightyear jumps and require 24 hours recharging after each use.
Warp drives and hyperdrives are fine even without this limit.
Just for balance I suspect the warp type should be somewhat slower or something.
Besides, pushing FTL speed caps to their limits would be unwise. It'd eliminate any chance for growth.

Tactical FTL limitation looks too strict at first but the last sentence clarifies things and makes room for the warp drive uses.

FTL weapon limitation sounds nonsense when attempted to be applied to the warp drive derived methods. On the other hand thus the limitation can be ignored out of common sense for these and apply the same for tactical FTL. No unbeatable super FTL weapons.


The new additions, though...they are kinda bad news.
The Dyson Sphere limit is relatively no problem. There are some creative civ ideas where the entire nation lives in a giant ancient space ship.
10km limit is a serious issue, though. You see big ship doesn't equal powerful.
And certain brainy hard sci-fi measures would require rather large constructs.
A number of fun spaceship ideas are also impossible
Then there's also the issue with race who migrate in space colonies.
I get that you don't want people to move around in ships with the size of moons or planets but this is getting overboard.
Generally the majority of these issues can be solved by GM management and the good'ol common sense.
As things are you may be stepping on the creativity of people.
One thing is to prevent OP civs and crazy arms race.
And another to neuter the chance for diverse ideas.
Pardon me if I come off a bit harsh here, that's just the way I am. No offense meant.
My point is only that the way you word things can be problematic for different FTL mechanics.
Also that your latest addition to the limits is well...too limiting.
Granted, I doubt I will be held back by these but I remember dozens of civs that would be pretty much impossible by these, even though they were pretty balanced otherwise.
Hardlines may be better to be replaced by a comprehensive view.
A race having thousands of ships with the size of the Moon is definitely OP. If they can replace any vessel in real time their industry is beyond insane.
A civilization living on a wandering moon-sized colonyship which made by ancient technology they no longer know or perhaps even understand is a whole other deal.