noobymcnoobcake wrote:T2 factories

mass cost from 800 to 1000(1.25x)

energy cost from 7200 to 9000(1.25x)

build power from 40 to 80 (2x)

T3 factories

mass cost from 3150 to 4725 (1.5x)

energy cost from 28530 to 35450(1.25x)

build power from 60 to 240 (4x)

You're going about this the wrong way.

Look at your numbers for T2 factories:

You want +200 mass cost and +40 build power. That's 5 mass per build power, so this would be an enormous buff to T2 factories against T1 engineers. (But this is essentially the same plan as adding build power adjacency to massfabs, 2 massfabs would cost 200 mass and gives +40 build power.)

Then look at the numbers for T3 factories: +1475 mass cost for +180 build power. That's 8.2 mass per build power, still a buff for factories vs engineers. (But this is essentially the same plan as adding build power adjacency to massfabs, 15 massfabs would cost 1500 mass and gives +300 build power.)

The big difference between your idea and massfabs, however, is that massfabs incentivizes MULTIPLE factories, whereas your idea still incentivizes only one. Look at your total mass cost/build rate ratio for your adjusted T2 and T3 factories: 15.5 for T2 factories and 24.9 for T3 factories. This means that, at 10.4, T1 engineers still yield more build power per mass, so it makes sense to build more of them RATHER THAN building additional teched factories.

But consider the idea of massfabs, you don't need new massfabs when you tech a new factory, because adjacency allows a line of 4 massfabs to simultaneously buff 2 factories. This means that if you tech a second factory, you get the additional build power without the additional cost your proposed.... so under your idea, 2 T2 factories would cost 2480 mass for 160 build power, or 15.5 mass per build power, whereas under my idea, 2 T2 factories + 4 T2 massfabs would be 2480 mass for 240 build power (40 from each of 2 factories, 20 from each fab for each fac), or 10.3 mass per build power, which is so close to T1 engineer efficiency that the benefits of adjacency actually make it more efficient.