Transmit signals over unlimited distances, instead of running wires between outposts. Available cheap and early-game. Re-skin of AAI Signal Transmission plus tweaks.
Could we get a setting that makes the towers 2x2 instead of 4x4? I can see 4x4 being good for same games but sometimes I think a 2 wide version would be better.
Ok, I added a setting for that and made 2x2 the default because I think it's more realistic for Factorio-scale distances. (In real life I think just an antenna would be enough for distances of like 1km actually, but not sure about that.)