Yes, there are just two main weapons and a variation of SMGs. And actually all of them are just a one kind of gun with different parameters. Laser gun (athough technically it's not a laser).
Currently I have plans for 5 more different types. Plus synergies. But that has to wait a bit, I am now adding a reactor (plus other features related to it) and testing a new zone variation. New build should be available within days.
Then I plan to work on extension modules (on the forearms) and then on weapons.
Step by step.