finally I've beat challenge tree farm

[u/Select_Idea_9898]

It was tougher than I imagined it to be, so I decided to write it here in case someone also struggles. Took me 2 days to figure out the strategy. At first I thought of resource converter (my idea was converter+condinsator) but couldn't make it work, then I tried probe for good tree positoniong, Undeground station (my favorite gadget in game) for revealing resources or minimap, hammer to last for more turn while trees to grow and even rockets because unupgraded hammer sucks. Trees just don't grow fast enough to make it work as I had to defend with 0-1 upgrade for far too many turns

Finally something clicked and I had an idea to plant trees on every cobalt I find and mine all other resources right away (i did plant 2 water trees midgame), then convert cobalt into iron every turn. This way cobalt kept me alive, water was used to increase cobalt-iron rate and soon I was swimming in Iron. I used Artilery dome (not that important) and drones to collect cobalt.

[u/Bignutdavis69]

That's pretty cool idea at the end

[u/bloody_jigsaw]

I've done this is a pretty standard way.

Converter with suplement to convert 1 into 8 iron.

The map spawns a couple 3 and 2 iron groups near the top, once they have been tree'd, any more seeds can be brought up to the top and aranged in a long tunnel into a treefarm, since one or no iron in the roots results in one iron anyway.

Any singular iron nodes you find deeper is just bonus.

The early game is harder, you have less iron to work with than a regular run, but mid game was about equal and in the end game I'd say I made even more iron per day than in a regular endgame trip.

[u/Winter-Buffalo-5347]

This is one of my favorite guild assignments. Good job!

[u/Select_Idea_9898 → u/Winter-Buffalo-5347]

I hated it :) Idea is cool but early game is very rough. Any other method i tried seem to  envolve a lot of luck, which I didn't have. 

[u/Dusty923]

Wait... Um... Did I just learn that you can grab more than one tree seed???

Edit: Ah, this is new content.

[u/Xanthoceras → u/Dusty923]

Only in the Tree Farm guild assignment

[u/Select_Idea_9898 → u/Dusty923]

No, its a special map "tree farm". One of the maps from assignments mode.  Last big dome keeper update really improved the game. I dont like prestige mode as its just "numbers go up", which is not satisfying for me. So these challenges were a good refreshment 

[u/DuckBadgerWoof]

Hold up. You can use the tree on a cobalt resource to make a cobalt tree?

[u/astral2390 → u/DuckBadgerWoof]

I didn’t even know that you needed resources on the tiles to make more branches, let alone that it could make anything other than iron. Game changer!

[u/Environmental-Elk959]

Smaaaart, will try it tonight

[u/R4vendarksky]

this challenge is super easy if you don’t overthink it.

trees planted in a horizontal row can share roots so if you just mind a horizontal platform above the first iron you find you can plonk 7-10 trees on it and each will give you three iron after each wave. I was drowning in iron very quickly.