Hi
this mod is really cool. i love seeing the cnc and other rts's ilove content added to factorio.
i would like to add my 2cents and/or constructive critism, i really hope i dont offend.
i too think these towers are far to cheap. consideringtheir range and power.
i play with research and things costing more and i think the oblisks might not be working with that as their research cost for the amount of power it gives them is way out of balance. my guess would be to dial the power back to about 20% of what it is, or make the idle power reqs atleast quadruple or the attack power per level of research alot less.
another note i think would be a great improvement is to get rid of the 2 instances and have them rotatable instead.
also ive noticed their lighting is a bit off especially at night.
i love your mod and am very grateful for the time you have spent making it. fantastic work.
p.s. these are just my opinions take it or leave it. im not a pro factorio player by anymeans so its possibly im missing somthing or being stupid about other mechanics