If you're curious, here are the current recipes (for mod version 0.4.0):
Dark Module 1:
2x Speed Module 1
2x Efficiency Module 1
2x Productivity Module 1
Dark Module 2:
1x Dark Module 1
2x Speed Module 2
2x Efficiency Module 2
2x Productivity Module 2
Dark Module 3:
1x Dark Module 2
2x Speed Module 3
2x Efficiency Module 3
2x Productivity Module 3
