This has been rethought after 6 minutes of being alive X)
I've always thought the idea of dual blades/guns was awesome... It would make battling so much easier... I know that it has been suggested many times, but putting a limit onto it could propose a possible solution to the problems seen before. Perhaps it could be incorporated into Lockdown as another individual class!
The main idea is to work a little harder to get the upgrade by doing something *unattainable to those who wouldn't try* and still available to everyone.
Ideas:
To get dual weapons:
~Buy the dual upgrade
~Get two weapons for that upgrade and insert them in the dual slots.
In the Clockworks:
Guns: You would probably have two get two of the same gun, which is 2x the effort, crowns, and energy. Nonetheless, it would be epic, giving you 2x the firing speed.
Swords: Maybe a possible way to mix swords, for example a Boltbrand and Blizzbrand, allowing dual wielding and two slashes. Charge attacks could possibly have a chance to critical with 2x the damage, regular attacks only getting maybe 20-30 percent more damage, so that it's not OP.
Bombs: Probably a no-go, it doesn't make sense to equip two bombs.
I hope this idea is taken into consideration c: Constructive (<-- CONSTRUCTIVE remember?) criticism is highly appreciated.
I suggest you search 'Dual Wielding' using either the Forum Search bar or Google (adding a 'Spiral Knights' to the end of the search term if you do) before the hate rolls in.
This has been suggested many times, in many 'plausible' ways. I suggest you at least read some of the threads so you understand the problems with it first.