Terra Nil Tropical Region walkthrough

Eco-friendly world sim Terra Nil puts you at the heart of a huge terraforming project. Use machines to reintroduce life to a dead world, then tear them all down again once you have reintroduced enough wildlife and animals for it to sustain itself once more. The initial Temperate Region can be quite challenging, but the following Tropical Region adds several new challenges. If you’re having a few problems read on for our Terra Nil Tropical Region walkthrough.

How to complete the Desolate Island Tropical Region in Terra Nil

Before we get going take a look at the top right of the screen, where you’ll see Temperature and Humidity gauges. You also start with machines (the Cloud Seeder and Combustor) that can affect both of these stats. Finally, note that your Irrigator has a new gauge, which is currently in the Good zone. If you can get the temperature u from Good into the solid green Ideal zone, you’ll earn extra income when creating greenery.

Related: Best Tips and Tricks for Beginners in Terra Nil

Of all the optional climate goals, the one that really makes a difference is Thunderstorms Begin. Once you hear the rumble of thunder, and rain begins to fall, Wasteland tiles will slowly turn to greenery and Polluted Ocean spaces will be cleaned. This of course makes life a lot easier, so if you’re close to triggering this at any point it is worth going out of your way to do so.

How to reach 100 percent greenery and clean water

The first thing to realize is that clean water is just as relevant in reaching your initial goal as greenery, so don’t be shy about placing Toxin Scrubbers next to the water. You’ll be needing plenty of clean water for the biome and animal stages, plus cleaning it gives you some income, so it’s a win-win. Beyond this, your goal is similar to that in the Temperate Region, only it is tougher to get good value out of your Irrigators due to the large areas of water. You may want to read ahead to the animal section in particular now, as some of the habitats can be quite tricky to create if you haven’t planned for them at this early stage.  

Your watchword here is efficiency. Place a Turbine, add a Water Pump if required, then place Toxin Scrubbers and Irrigators enough that your Turbine hopefully breaks even. Then make your next Turbine, hopefully complementing the previous one and expanding across the map. Remember the Mineralizer can be super useful in this region, allowing you to make rock in far-flung areas of the map you may not have realized you can reach and then add a Turbine there.

How to Create a Tropical Forest

This is where things start to get tricky. You have four biomes to create, and if you haven’t yet done anything to increase the temperature or Humidity, several of them are currently impossible. Use a Cloud Seeder to raise the humidity enough that you can start to place Shadecloth Pillars. These pillars need to be anchored to cliffs, so are usually the trickiest biome to hit the target for while not really affecting much else. Once they’re done, you can leave them alone.

Related: How to unlock the Minecraft rocks! achievement in Terra Nil

You may want to use a few Cloyd Seeders to push the Shadecloth Pillars from good production up to Ideal. This shouldn’t cost much, does no harm, and should easily pay for itself. Pillar placement takes a bit of practice, but it’s all about triangles. Just remember each pillar can be part of several triangles, creating much larger coverage.

How to create Beech and Mangroves

Your best bet here is to compare the best places for Hydroponeums versus Littariums, as both will remove greenery while covering over Irrigators and Toxin Scrubbers respectively. For example, selecting Littarium will highlight all the potential Toxin Scrubbers they can be placed on. Make a mental note of how effective they will be, then do the same with the Hydroponeums on the Irrigators.

You should be OK for finances, as both these buildings are profitable. So, you can build more if you need to, making these biome targets quite arbitrary. You may also want to consider the animal habitats below. Then simply add Salinators to create the Mangroves until you hit your target, adding more Irrigators and Toxin Scrubbers if required.

How to Create Coral Reef

With the other biomes complete, you can concentrate on building the monorail network you need to create Coral Reef. If you still need to raise the temperature to be able to use the Coral Lab, just be careful not to damage any of the other biomes you’ve created. It won’t stop you from completing the game but could result in some annoying backtracking.

Once the temperature is up to around 18 degrees, you can start to create Coral Labs. These are again built on top of Irrigators, so you may need to build some new ones to hit your biome target. You’re also likely to need to use Mineralizers to create more rock because you need it for the placement of Monorail Nodes. You’ll also want to be placing these nodes to create a complete network, rather than just making routes to the sea to place the coral, as you will need this network for recycling later.  

How to populate the Tropical Region with animals

If you’re just happy to hit the three animal types required to complete the Tropical Region, there are some pretty easy options:

• Parrot: Simply requires 20+ Tropical Forest tiles, but with no buildings. This is simple to complete once you start recycling, but make sure you don’t need to change the landscape anymore (for other animal habitats below) before you do!
• Tortoise: A small Island with 10+ beach tiles.
• Flamingo: 10+ beach tiles with 10+ wetland tiles. You may need to engineer this if you’ve converted all of your wetlands into mangroves.
• Whale: 20+ ocean tiles, 10+ of them deep, with no land. Polluted Ocean tiles won’t count, but creating thunderstorms will fix this.
• Manta Ray: 8+ ocean tiles, 6+ coral reefs, and 3+ river tiles. These don’t have to be attached, just all within a scan range.
• Reef Shark: 16+ coral reefs, 4+ mangroves, and the temperature at 20+ degrees.

How to recycle all of your machines and complete the Tropical Region

We suggest placing your Airship and Recycling Station relatively close to the center of the map, but you need to be let first by your network of Monorail Nodes. Note that once you’ve connected your network to the Recycling Station when you send a Recycling Beacon to a Monorail Node it will also recycle the node you send it to. So be sure to work from the very outside of your network back into the center.

You also have Recycling Silos to help, and when used they don’t destroy Monorail Nodes, which is useful. The Recycling Beacon also only destroys the Node it is sent to, not others in its range. Remember the Mineralizer is your friend when it comes to placing Nodes, as it can add rock to most sea locations to help you move across the map.

To continue the Terra Nil walkthrough, visit Terra Nil Polar Region walkthrough and Terra Nil Continental Region walkthrough here at Pro Game Guides!