Adjacency effects in Beyond These Stars trigger from buildings or terrain immediately next to a footprint. They can improve production speed, storage, worker slots, Happiness, pollution, or power use—and some combinations impose a penalty. Read the placement preview and live building panel before committing, because a compact bonus is not worthwhile if it blocks the road, Power Line, forest, or storage the district needs.
Learn the early patterns
Several early effects show how the system works. A Water Pump gains storage when placed on an outcropping with three surrounding water tiles. A Hut gains Happiness beside two Potato Patches. A Woodcutter gains storage when Forest surrounds it except for its road. Early decorations gain Happiness when placed next to two others, making a triangle of three a practical arrangement.
The Burner Generator demonstrates a tradeoff: leaving four neighboring tiles empty, including roads, reduces pollution but also slows production. The right placement depends on whether clean operation or maximum short-term power is the bottleneck. The tooltip is more useful than a rule that says every bonus must be active.
Mines show that adjacency can be mixed. Another Mine can increase bonus resources while also increasing pollution, whereas nearby underwater terrain can reduce pollution while slowing production. Use overlays and current demand to choose which side matters.
Evaluate the whole footprint
Benefit
Identify the exact stat changed and whether that stat is currently limiting output or recovery.
Penalty
Some effects trade speed, storage, workers, pollution, or power. Read both lines rather than the green line alone.
Access
Preserve the road entrance, walking route, powered contact, and future Power Line corridor.
Expansion
Leave room for storage, cleanup, forests, and later buildings whose prerequisite chain is not visible yet.
Most buildings still need road access and a breathable legal tile. An adjacency-perfect footprint that forces a long road or blocks movement can lose more time in hauling than it gains in task speed.
Use positive pairings without inheriting negatives
Effects are evaluated separately. The official Buildings page illustrates a Landscaper next to a Tree Nursery but not the Compost Heap, activating only the desired positive relationship. That is a clue to test each neighboring side rather than copying a solid block of related buildings.
Place the preview, inspect which arrows or effect lines become active, then rotate or shift one tile. Compare both versions before spending construction materials. After completion, reselect the building to ensure the live state matches the preview; a later Forest, building move, or demolition can change the condition.
Treat storage and workforce effects with care. More storage delays a full-output stop, but it does not create a consumer. Fewer work slots can help a labor-poor settlement or reduce maximum rate. Extra worker capacity is only useful when nearby homes have eligible Peeps.
Combine adjacency with pollution planning
Industry often offers tempting throughput effects at an environmental cost. Check both Pollution Existing and Pollution Rate overlays after activating a new pairing. Forests can suppress pollution, but they also occupy neighboring tiles and can block Power Lines that are not protected on roads.
Keep housing outside the strongest pollution. A Hut’s Happiness bonus from Potato Patches does not compensate for placing the neighborhood beside heavy hazardous production. Likewise, clustering every smelter for an industrial effect can create a pollution patch that overwhelms Cleaners or becomes toxic.
Reserve one edge of industrial blocks for mitigation and one for logistics. If the bonus consumes every side, the layout has no place to adapt.
A safe placement workflow
For each important building:
- Place the ghost near its required resource, water, consumer, or home district.
- Verify road and breathable-area requirements.
- Rotate and test neighboring footprints while reading every positive and negative effect.
- Trace future power and storage paths through the proposed block.
- Check pollution and work-radius overlays before confirming.
- Reinspect the completed building after adjacent construction changes.
Use bonuses to strengthen a working design rather than forcing the design around one percentage. For grid routing see Power Grid and Lines; for district planning see Housing and Services.
References checked for this route
- Official Buildings page for adjacency principles and the Water Pump, Hut, Woodcutter, Burner Generator, decoration, and Landscaper examples.
- Official Mine page for mixed resource, pollution, water, and speed effects.
- Official Ore Smelter page for industrial adjacency tradeoffs.
- Official Power Line page for road placement and Forest/building blockers.