So, I was watching Quill18’s walk-through of Surviving mars, and I noticed something. Something dreadful. Something game-breaking. Something so horrible, I had to go back and double-check it against other youtubers playing the game, desperately hoping I was wrong..
Unfortunately, I was right.
Tunnel costs do not scale with the length of the tunnel.
This is, quite honestly, game breaking for me. Boring a tunnel through dense soil and solid rock takes a lot of effort- specialized machines, years of planning, test bores, explosives- the list goes on. And on.
Of course, mars simplifies this somewhat, as you don’t have to deal with water tables, or human-made interference (like a giant building running it’s foundation where you wanted to dig), but there are other dangers to make up for that.
My point, however, is simple- the construction time, Cement cost, and upkeep costs of a tunnel should vary linearly with the distance between the end points, and tunnels should produce waste rock in an amount that varies linearly with the distance (they apparently don’t produce any waste rock right now, which I also find game-breaking).
Building a ten-square tunnel to clear a bit of dangerous ground? Right now, it costs the same, and has the same construction time, as hurtling your colonists and drones halfway across the map.
I will suggest, for the sake of discussion, adding a .01 cement cost to upkeep per hexagon of distance covered, and making the cement cost something like Cement = 20+2*distance .