

The randomly generated maps provide their own challenges, with the placement of a natural lake or river often defining your strategy. It also makes it an entertaining game to return to, although I do worry a bit about diminishing returns. You're kickstarting natural processes, not building a base, and perhaps learning a bit about how these environments formed in the first place. A controlled wildfire can create fertile ground for an entire forest. A well-placed water pump on a hill can fill multiple rivers and lakes. Just completing each mission became relatively easy (although I could have pushed things harder with the granular difficulty settings, limiting resources and making choices more important), but finding the tricks in each environment to nudge nature into doing the heavy lifting was always satisfying. That's where the joy of Terra Nil lay for me. A few carefully placed Cloud Seeders near bodies of water won't do much at first, but the rising humidity will kickstart natural rains again, cleansing the entire map if you're willing to just sit for a while and let nature take its course while enjoying the rainy ASMR vibes. While you could brute force your way to success and cover the entire map with a grid of scrubbers and irrigators, it's far more efficient just to give nature a little nudge in the right direction.

Systems are introduced through a beautifully illustrated notebook encouraging you to focus on the beauty of the natural world. Terra Nil is impressively good at conveying its message through mechanics. Lastly, each mission asks you to scan the environments you've created to find ideal homes for an assortment of animals, and then use natural rivers or your own monorail systems to clean up, leaving nothing but a lush environment filled with wildlife that you're encouraged to sit back and appreciate for a while as the camera pans triumphantly over it. With enough green and blue foundation laid, a new set of structures unlocks (a different set in each mission and variant), allowing you to further manipulate the environment and grow different kinds of habitat to fill a quota for each.
