Ok with talk of all of these Weapons platforms and whatnot I had a really very devistating evil (and cool) idea...
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Heavy Graviton mines:
These simple devices consist of a simple sensor array, a high burn gravity generator (which lasts only 30 seconds or so - a couple of rounds) and a small payload of antimatter.
These mines are usually laid out in a wide 3D latice around instalations, and fitted with a scanner sophisiticated enough to be read subspace transponder codes, so that identified Starships can pass by..
On detection of a graviton field (especially polarised - I.e. Starship, not random asteroid) The mine begins building up a sudden and strong gravity field.. this impells the mine towards the largest mass (read largest target) in the vicinity.. Howevery why this mine is so leathal is because this then triggers, in sequence, all the other mines in the area, all attracted together, and towards the central mass.
One of the other reasons this weapon is so very deadly is because the combined graviton field collapses any warp fields, making escape very hard at relativistic speads.. meaning the mines are dragged allong at impulse speeds, which are also made harder due to the cumulative effect of the gravition distortion.
The one flaw in the device is that once the web is set off, it will be completelly consumed as it destroys the ship, even if the ship escapes, as all the mines will draw to one another without a viable target.
System:
The mines take up an ammount of space equal to 5 structure per D6 of damage. The transponder codes ensure the minelaying ship doesn't destroy it's self!
The deployer shimply choses how large a field he wants based on it's number of available dice (which can be considerable if several ships are used to deploy the mines!)
On entering the field the enemy vessel activates and is struck by the closest mines - 1 dice of damage. For each round that the ship is in the minefield this number accrues by 1 so that in round 2 it would be struck by 2, round 3 by three and so on.
To escape the field a ship can use the open manouver, with each success gained it reduces the number of dice, to a minimum of 1 until the ship leaves the field (determined by the number of dice in the field /2) Or the mines have been used up.
Each dice of mines currently within the starships fieled also imposes a -2 penalty to all helm manouvers (making it potentially increasingly difficult to escape)
Once the ship has left the filed it then continues to devour it's self, though isolated pockets may be left behind, if the ship travelled for some distance, thinning out the field into isolated pockets.
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Now that IS Nasty.. any suggestions for a history on such a weapon would be cool, or any refinements of the damage system.