Beyond These Stars Terraforming: Build Rivers & Forests

Terraforming in Beyond These Stars is the difference between a colony that merely survives and one that actually breathes. You're not just placing buildings on a hex grid — you're reshaping the back of a living space whale named Kewa, and every hill you flatten or valley you dig changes how your settlement grows.

Most new players treat the terrain as fixed scenery and build around it. That works for the first hour. Then your farms run out of fertile soil, your factories choke on their own soot, and your Peeps run out of breathable air. Understanding Beyond These Stars terraforming early prevents all three problems at once, because land shaping is the tool that solves them.

Check out beginner guide for more details.

This guide covers how the terraforming tools work, when to use each one, and how to keep Kewa healthy while you carve out a home.

How Terraforming Works in Beyond These Stars

The terraforming system is built around elevation. You can raise a hex, lower a hex, or level it out, and you mark these jobs on the map rather than sculpting instantly. Your workers carry out the changes over time, which means terraforming competes with your other labor priorities.

The core mechanic is a trade-off. When you lower a terrain hex, the game generates rubble, and that rubble is what you use to elevate another point on the map. In practice, this means every hill you remove pays for the valley you fill somewhere else.

Community-tested tip: pause the game before marking large terraforming jobs. Your Peeps can get stranded or rerouted mid-task if you change elevation under an active transport path, and logistics quietly stall until you notice.

Why You Should Terraform Instead of Adapting

The natural terrain on Kewa's back is deliberately awkward. You start with a small green patch near the water and a lot of inhospitable ground around it. Players who refuse to terraform end up with sprawling, inefficient colonies connected by long detours.

Shaping the land solves several problems at once:

• Connecting isolated sectors without demolishing buildings or redesigning districts from scratch
• Channeling water toward the colony by digging meltwater valleys near Kewa's head
• Creating fertile farmland where none existed by adding topsoil
• Opening passages through natural barriers that would otherwise force expensive detours

The official Epic Games Store page for Beyond These Stars frames the choice directly: will you place buildings as the land allows, or change its very shape to exploit adjacency bonuses and reduce travel times? In practice, the second option wins almost every time.

Digging Canals and Making Rivers

One of the most underrated terraforming moves is digging a channel and letting water fill it. This lets you create your own rivers instead of relying on the starting water source.

Rivers matter for three reasons. First, they support farming and irrigation. Second, water access contributes to Kewa's health, which feeds back into travel speed and mood. Third, a well-placed canal can turn a dead-end district into a productive agricultural hub.

A practical approach: cut a channel from a water source toward the flat land you want to farm, then level the surrounding hexes and add topsoil. You've just built a farming district out of wasteland.

Adding Topsoil for Agriculture

Barren ground produces nothing. Topsoil converts it into fertile land suitable for crops and pasture-adjacent production.

Plan your topsoil jobs in blocks rather than scattered hexes. A contiguous patch of fertile ground supports a proper agricultural complex, while isolated fertile hexes waste the travel time of your farmers. Pair these blocks with nearby housing so your Peeps get the mood bonus from living next to potato fields.

Forests Are the Real Engine of Terraforming

Planting trees does far more than secure a wood supply. Forests are how you push breathable atmosphere onto new hexes, and breathable space is the hard limit on how far your colony can expand.

The official store description confirms this: maintaining entire forests helps spread the atmosphere and facilitate the expansion of your city. Neglect the land, and your habitat can actually shrink.

Here's a working loop that experienced players use:

1. Decide where your next residential district will go
2. Plant tree corridors toward that area before you build anything
3. Let the forest spread breathable air onto those hexes
4. Place housing once the atmosphere reaches them

Forests also act as passive filters. Position green belts between factories and housing, and the trees absorb smoke and pollution that would otherwise tank your Peeps' happiness. This is cheaper than running cleaners constantly.

Community reports note that the composter and landscaper loop can feel slow if you're relying on it as your only pollution solution. Treat forest belts as prevention, not cleanup.

Terraforming and Waste: The Hidden Connection

Every terraforming project leaves rubble behind, and that rubble is garbage like any other. Combined with soot from burner generators, slag from smelters, and wood waste from clear-cutting, your early game is partly a waste management problem.

If you leave debris lying around, tiles turn toxic. Peeps lose happiness walking across polluted ground, and factories clog when their internal waste storage fills up — the entire production line freezes.

The fix is structural, not cosmetic:

• Unlock cleaners as soon as they appear on the research tree
• Build storage sheds dedicated to waste next to industrial hubs
• Plant trees around industry to filter pollution at the source

One quirk worth knowing: in the launch build, soot is needed to unlock the Cleaner itself, and some players report the opposite problem from the demo — now there isn't enough soot rather than too much. If you're stuck waiting on soot, running burners and smelters briefly is the standard workaround.

Terraforming Without Hurting Kewa

Kewa is a sentient creature with health, mood, energy, and temperature. Every ecological decision reaches her. Your pollution levels, how you treat the land, and the balance between industry and nature all feed into her status bar.

The payoff for keeping her healthy is concrete. A healthy Kewa travels faster, stays longer in star systems, and grows Kewa Fruit Trees that boost Peep happiness. Let her health slide and you get Thorny Stems instead, with negative effects.

Practical routine: before expanding a factory or opening a new area, check what it does to Kewa's back. Clean up pollution early, plant forests generously, and don't overburden the whale just to gain speed. She may leave a system earlier than scheduled if her mood drops, cutting your rare resource harvests short.

Terraforming and Your Perk Tree

The passive skill tree functions like your colony's government, and it branches into three paths: pollution versus happiness, productivity, and warehouse storage capacity. Every point in one path is a point missing from the others.

Terraforming interacts with this directly. If you commit to heavy industry, invest in warehouses and productivity so factories don't stall on waste. If you want a clean, stable colony, invest early in the pollution and happiness branch, and let forests do more of the work.

Don't scatter points. Pick a playstyle before spending your first perk and stay consistent — the opportunity cost shows up hours later.

Common Terraforming Mistakes

• Terraforming during real-time play. Pause first, especially when changing elevation near roads, bridges, or elevators.
• Scattered topsoil. Fertile hexes work best in contiguous blocks.
• Clear-cutting forests. Wood is renewable only if you keep the belts alive.
• Ignoring rubble. Terraforming debris becomes toxic if left unattended.
• Overcrowding districts. Packing farms, housing, and storage into one pile creates bottlenecks even with adjacency bonuses.

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