Yeah, tunnel tiles are pretty much a game-breaker for subterranean cities.These tiles cannot be altered by any terraform spell including "Dirt Cavern Walls". Also the tunnels tiles have a higher movement cost than the dirt cavern walls they were created from.

I was trying to find what was making tunnel tiles......I can neither build on them nor terraform them.

I second Coastie Aircrew on this... those tunnels tiles are quite unconvenients... I liked it better when they werent featured

Thank you for your reply, I had already tried to change the tunnel tile, I says i can build a road but it does not show up, it will not let me terraform the tile in any way, I think you will need to disable the tunnel tile for this to work. Sorry i took so long i was out of town for Thanksgiving.

@Coastie Aircrew Ah yes, Tunnels. Those were a feature I had only partially completed. They are meant to be impassable by units that are too large (unit rebalance is not a part of this mod though). Maybe you can turn the tunnel into barrens by building a road over it so you can then make a city? If not, i'll patch that change in (unless you have a better suggestion)

@Luthdraco Thats very generous ^^

OK I tested after the quick fix, and indeed you can now cast Restore Ocean Floor directly on the rapids and it becomes normal water. Terraforming spells can only be cast on your domain, so if you want to alter a rapids, build a fortress nearby. From the start of the game it goes like this:

1) Research basic seafaring (3 turns early game);
2) Research terraforming (7 turns early game);
3) 1 City with builders guilds (2-3 turns early game)
4) Make a builder
5) Move to spot next to rapids
6) Build a fortress to expand domain there
7) Cast Restore Ocean Floor on a rapids tile whitin domain
8) Build the bridge :-D

All in all it's quite a long process, but I think it is fine because at the start of the game there's no rushing to build one anyways. I've left a positive rating and gave an award. Thank you for your work and time on the mod.

I love the work you have done, but a new problem has developed, in the undergound any dirt that is dug by my builder become tunnel tiles and cannot be built upon (tower, City) but can be traveled. (Human Race Builder) I understand if you cannot get to this for a while, I have turned off the mod for now but would love to have it back. Thank you for your work.

@Luthdraco did a quick fix. now you can directly turn rapids into water via Lower Ocean Floor. Couldn't test it though bc in my tests I never got Rapids to show up. Let me know if it works ^^

@Luthdraco No that's not intended but an interesting find for sure :) In order to build a bridge on a tile two conditions must be met: 1)the tile allows bridges 2)the builder can walk on that tile. My mod makes rapids allow bridges, but since the builder still can't walk on them, it still fails. Not sure how I overlooked this until now :D

So you can't directly build bridges on top of rapids, first you have to alter the rapids tile right? After researchig basic seafaring and creating a builder (with these you can already build bridges on normal rivers) I also had to do these next steps:

1) Research terraformer.
2) Cast raise ocean floor on a blocked water tile (rapids).
3) Cast restore ocean on that same tile.
4) The tile becomes a normal river tile, and thus a bridge can be built as normal.

This is the intended way, right? This is fine, but the first line on the mod description (by itself) implies that you can directly build a bridge on top of rapids, which is kinda misleading and might confuse people like it confused me until I figured it out. So clarifying this would be cool.

It would be awesome to be able to turn whatever land you want into water :)

Yeah that is because the game considers that new land tile as a type of water :)

Thanks for instant answer.
I am glad that sea-forts are possible at least (which can use many of the resources)

@resieg I dont think they can. Its probably possible to mod in but a lot of work

"Raise Ocean Floor (24Mana) Turns Water into walkable Land"

I understood that it is not possible to build roads on this kind of land.
Is it possible to build settlements with a settler there?

@capitaineyolo: Ok, thx! Would be very cool, if you could add this sometimes.

That being said, making a spell that turns land to water is possible. I may get around to adding that sometime ^^

@hafensaengerx Hey ^^ glad you like it. The spell does work, but only on the terrain created by its counterpart "Raise Ocean Floor"

Hello! Very good mod. thx
Does the restore ocean spell work? I tried clicking on a land hex, but i get the message "invalid terrain".
Is it a bug or do i do something wrong?

@Star-X Hey ^^ glad you like the mod. I tried to enable roads on the Landfill but so far couldnt get it to work. You can however build bridges between Landfills, so every other hex will be a road. The freeze water spell effect still lasts for 3 turns, just like in the unmodded game - no changes made.

Also, any chance of adding road support to the retextured frozen water tiles being used for land filling? It'd make terraforming way more useful, as it'd make multihex bridges with roads not suffer from halving your movement compared to regular land tiles with roads.

Brilliant use of the frozen water retextured to allow for filling water tiles permanently via terraforming!

My honest opinion though, if it's remotely doable, make Freeze Water still do its normal size and mana cost, but temporarily. Terraformed "filled water" should remain permanent, but in some situations freezing water temporarily to allow your units to cross quickly, then having the "ice bridge" cut out on its own after a few turns is more tactically sound than a permanent bridge, especially since Freeze Water works outside of domain as well.

Hey Im assuming you're talking about bridges over lava. I might be wrong but think that a Builder with 100% Fire Resist (which gives it lavawalking) can build bridges over lava.

Dwarves: "Cheers!"
IIRC there's no way to build a bridge so exploding them would be irreplaceable.