Beyond These Stars Wiki

Terraforming

Canals, top soil and forests reshape the whale you live on. Learn what expands buildable land, what shrinks it, and how to farm Kewa without wrecking the biome.

Canal / Soil / Forest

Core Tools

Habitat shrink

Failure Mode

Mine elsewhere

Alternative

On This Page:Introduction·Terraforming Actions & Their Effects·Terraforming Levers·Core Mechanics·Advantages·Challenges·FAQ·Quick Tips·Articles·Explore More

Introduction

Terraforming is how you turn a barren stretch of whale into somewhere people can live. Digging canals brings water where you need it, laying top soil converts rough ground into land that will carry crops, and planting trees gives you a renewable raw-material supply while also helping spread the atmosphere that lets your city expand. None of that is free. The land on Kewa is fragile, and the game is explicit that if it is not tended with care your habitat shrinks rather than grows. That framing makes terraforming a two-sided tool: the same actions that unlock farmland and forests can tip the ecosystem if you push them past what the biome can absorb. The design also deliberately offers an alternative — you can keep Kewa’s ecosystem intact and mine what you need from other planets instead, accepting the logistics burden in exchange for a plate that stays healthy. Choosing between those two postures is one of the few genuinely strategic decisions the game asks you to make, and it shapes the whole campaign.

Terraforming Actions & Their Effects

Action	What It Unlocks	Cost Or Risk
Dig canal	Water routed to the districts that need it, and a transport line across the plate	Reshapes terrain permanently, and irrigation placed badly wastes water it was meant to deliver
Lay top soil	Rough ground becomes land that will carry crops, the precondition for farming	Consumes material and labour that could have gone into housing or production
Plant trees	A renewable raw-material supply, plus help spreading the atmosphere that allows expansion	Takes time to mature, so cutting it early for a quick build throws the benefit away
Build forests	Maintained woodland that keeps feeding both timber and atmospheric spread	Occupies ground that could otherwise host production, so density must be planned
Reshape contours	Flatter, more buildable surfaces for adjacency bonuses and shorter commutes	Over-exploitation degrades the biome and shrinks the buildable habitat you were expanding
Leave it alone	A healthy ecosystem, with a stated strategy of mining elsewhere for resources instead	You carry the full logistics burden of off-world supply rather than taking the easy local extraction

Terraforming Levers

Canals & Rivers

Water infrastructure

What It DoesDigging canals routes water to the districts that need it and creates a transport line across the plate, so the same trench serves both supply and movement.

Second EffectBecause Peeps gain happiness near water and lose it crossing polluted ground, water infrastructure is quietly also a mood project, not only a logistical one.

Placement CareA canal is permanent. Routing it through ground you later want for a district block forces either a redesign or a very expensive re-dig, so decide the settlement outline before you cut.

InteractionRivers and canals interact with the biome health that keeps Kewa well, which is why this is the terraforming tool most entangled with the relationship system.

Top Soil

Farming precondition

What It DoesLaying top soil converts rough ground into land that will carry crops, and it is the prerequisite that stands between you and feeding a growing population locally.

Why It MattersFood that has to be shipped is food that depends on Trade Ships and voyage time, so local agriculture is what lets a settlement scale without a logistics project attached to every meal.

Cost ShapeBoth material and labour, which means top soil competes directly with housing and production for the same early resources. Timing it badly is how colonies end up short of beds.

Practical ReadLay soil where water and housing already are, not where the map looks emptiest. Farmland at the end of a long walk loses the working time it was supposed to fund.

Forests & Trees

Renewable supply

What It DoesTrees supply raw material renewably, and a maintained forest also helps spread the atmosphere that lets your city expand into new ground on the plate.

The TemptationCutting a standing forest for one emergency build is the most common terraforming mistake, because the value of a mature forest is the accumulation, not the current stock of logs.

Density QuestionForests occupy buildable ground, so the planning decision is how much of the plate to dedicate to woodland versus production. Too little and you import materials; too much and you run out of room.

CompoundingBecause atmospheric spread enables expansion, a forest planted early keeps returning value long after the timber it supplies has been consumed, which makes it a rare strictly-positive investment.

Terrain Contours

Shape of the ground

What It IsKewa’s back is not flat. Elevation and ridges run across the plate, and they affect how buildings sit, how far Peeps walk and which neighbours can be placed beside each other.

Your Two OptionsWork with the land as it is and accept larger, looser districts, or reshape it for tighter blocks with better adjacency and shorter commutes. The game frames this as a genuine decision rather than a correct answer.

Cost Of ReshapingEvery contour you flatten is ecosystem you disturbed, and sustained reshaping degrades the biome until the habitat begins to shrink instead of grow.

Tool PairingBridges and elevators are the alternative to reshaping. They let you keep the terrain intact while still connecting districts across height differences.

Habitat Shrinking

The failure mode

What It IsThe buildable area on Kewa’s back can contract. The game states plainly that if the land is not tended with care, your habitat shrinks rather than grows.

How It HappensHeavy extraction, aggressive contour reshaping and industrial pollution accumulate into biome damage, and the ground you can build on is what pays for it.

Why It Is Easy To MissThe change is gradual and has no single dramatic moment, so players typically notice it as a vague sense of running out of room long after the cause was set.

RecoveryRestoring a degraded biome means planting, cleaning and holding back extraction, which competes with whatever growth plan made you over-exploit in the first place.

The Off-World Alternative

Deliberate restraint

What It IsThe game explicitly describes keeping Kewa’s ecosystem intact and mining elsewhere as a valid route, rather than treating terraforming as mandatory progress.

What It CostsYou take on space ports, Trade Ships and shipping latency for resources you could have taken from the ground under your feet, which is a real ongoing management burden.

What It BuysA healthy biome, a healthier whale, and a habitat that does not quietly disappear underneath an expanding settlement.

When To Choose ItMost practical runs land somewhere between the extremes. The useful framing is per-resource: take what the plate can renew, and buy in what would cost the ecosystem too much to extract.

Core Mechanics

Terraforming sits at the intersection of three systems: land, water and atmosphere. Land is the raw quantity of buildable surface, extended by laying top soil over rough ground and reduced when biome damage shrinks the habitat. Water is routed through canals and rivers, which serve both irrigation and transport while also contributing to Peep happiness. Atmosphere spreads outward as forests are established and maintained, and it is what ultimately permits your city to expand into new ground. Because all three feed the biome health that sustains Kewa, every terraforming project has a second ledger: what it costs the creature whose back you are working on. The game does not hide that tension. It states that the equilibrium is fragile and that habitat can shrink, and it offers an explicit alternative in keeping the ecosystem intact and mining other planets instead. So the practical skill being tested is restraint: knowing which resources are renewable on the plate, which are worth buying in from off-world, and where reshaping the ground pays for itself in layout efficiency before it starts costing you buildable area.

Advantages

Terraforming is the mechanic that makes Beyond These Stars’ setting matter rather than decorate it. Because the ground is a living creature, reshaping terrain is a decision with a relationship attached, and the game is unusually clear that the choice is real: work with the contours or flatten them for tighter districts, keep the biome intact and mine elsewhere or take what is directly underfoot. That gives the mid game a genuine strategic fork instead of a single optimal build order. The tools themselves are also well matched to the terrain they operate on. Bridges and elevators exist precisely because the plate is uneven, so a player who does not want to reshape the ground has a supported alternative. And forests are a rare strictly-positive investment: they supply renewable material and spread the atmosphere that enables expansion, so planting early keeps returning value long after the timber has been consumed.

Challenges

The system’s main problem is that its failure mode is invisible. Habitat shrinking has no dramatic trigger and no alert — you notice it as a growing sense that there is nowhere left to build, long after the extraction or reshaping that caused it. Because the developers have not published biome thresholds, you also cannot plan precisely how much reshaping a plate will absorb, so the boundary between sustainable and destructive practice is learned by feel. Terraforming actions are permanent, which raises the stakes on early decisions made before you understand the layout you actually want, and a canal or a flattened ridge cannot be casually undone. Finally, the restraint strategy the game offers — keep the ecosystem and mine elsewhere — is real but expensive, since it hands you space ports, Trade Ships and shipping latency for materials that were sitting under your feet the whole time.

Frequently Asked Questions

Why is my habitat shrinking in Beyond These Stars?+

Because the land on Kewa is a fragile ecosystem rather than a static map. The game states that if the land is not tended with care the habitat shrinks instead of growing, and the usual causes are sustained heavy extraction, aggressive reshaping of terrain contours and industrial pollution accumulating on the plate. The change is gradual and has no single dramatic moment, which is why most players notice it as a growing shortage of buildable space rather than as an event. Recovering a degraded biome means planting and cleaning while holding extraction back, and that work competes with the same growth plan that caused the damage in the first place.

How do I farm on Kewa?+

Farming starts with top soil. Rough ground will not carry crops, so laying top soil is the conversion step that turns terrain into farmland, and it is the prerequisite for locally grown food. Where you lay it matters as much as whether you do: farmland should sit near water and near the housing that will consume the produce, because a long walk to work is lost shift time on every cycle. Water comes from canals and rivers, which is why water infrastructure and farming are usually planned together rather than one after the other. Food sourced locally also removes a dependency on shipping, which becomes significant once your population grows.

Should I terraform or leave the ecosystem alone?+

The game deliberately supports both and does not treat terraforming as mandatory progress. It explicitly describes keeping Kewa’s ecosystem intact while mining resources from other planets as a valid approach. Reshaping the ground gives you tighter districts, better adjacency bonuses and shorter commutes, but it consumes ecosystem integrity and can shrink your habitat if pushed. Restraint protects the biome and the whale, but hands you the full logistics burden of space ports, Trade Ships and shipping time. Most practical runs land somewhere in between, and the useful habit is to decide resource by resource: take what the plate renews, and buy in what would cost too much to extract.

Do I have to flatten the terrain to build a good city?+

No. Bridges and elevators exist specifically so you can connect districts across elevation changes without reshaping the ground, and the developers frame working with the land as it is versus reshaping it as a genuine choice rather than a correct answer. Building on the contours as they come generally produces larger, looser districts with longer commutes, while flattening makes tighter blocks with better adjacency possible at the cost of ecosystem integrity. A mixed approach is common: flatten the sections where adjacency matters most, and use bridges and elevators to link the parts where the natural shape is already workable.

Quick Tips

💡

Plant forests before you need the timber rather than after your supply runs short. A mature forest supplies raw material renewably and also helps spread the atmosphere that lets your city expand into new ground, which means cutting a standing forest for one emergency build trades two long-term benefits for a short-term fix you could have sourced elsewhere.

💡

Decide your district outline before you cut a single canal. Canals are permanent, and routing one through ground you later want for a production block forces either a redesign of the district or an expensive re-dig, so the cheap version of the same decision is to plan the shape of the settlement first.

💡

Lay top soil where the water and housing already are rather than where the map looks emptiest. Farmland at the end of a long walk loses the working time it was supposed to fund, and food produced locally is only a saving if it does not cost you a commute in exchange.

💡

Do not flatten terrain you intend to bridge or elevate anyway. The whole point of bridges and elevators is to connect districts across height differences while leaving the ground intact, so reshaping a slope that was already workable spends ecosystem integrity for nothing in return and permanently removes an option you may want later.

💡

Keep extraction rates below what the biome can recover. Habitat shrinking has no dramatic trigger, so the only reliable signal is the trend of your plate area over time rather than any single event, and by the time the shortage is obvious you have already paid for the mistake in lost ground.

Featured

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