No.014 / 280Build & manage · Building & space

Coverage Radius Planning

Each facility covers a circle; placing circles well beats building more of them.

Prototype complexity
Who plays
Solo decisions
Design focus
Spatial · Planning · Optimization
ValheimNo.014Valheim

01The core loop

Action → feedback → next choice
  1. 01Find coverage gaps
  2. 02Place a service
  3. 03Check overlap and holes
  4. 04Shift or add more

↻Feedback changes the situation — the next round starts from there.

Walk through one round

A simplified design example. Situations and numbers illustrate the mechanic, not exact rules from a reference game.

  1. T1

    Turn 1 · The situation

    After expanding east, three blocks lack fire coverage.

  2. T2

    Turn 2 · The player chooses

    Relocate the old station to the district border instead of building new.

  3. T3

    Turn 3 · The feedback

    The east is covered, but one western block now has a gap.

  4. T4

    Turn 4 · The next decision

    Add a small western station once budget allows.

How it plays

Facilities serve by radius or network distance, buffing whatever is inside. Placement previews show coverage; overlap is waste and gaps cause problems. Upkeep stops players from blanketing the map.

What the player weighs

  • Few big ones or many small ones
  • Central for reach or at the edge for new districts

02Start small

Quest · 0/3Prototype complexityCompact prototypeWho plays · Solo decisions

Scope is an editorial estimate for the minimum prototype, not the reference game or a production schedule.

03One mechanic, different implementations

Valheim
V

Valheim

P1

A workbench has a radius within which you can build and repair, and nearby items like fires and beds combine into comfort for the rested bonus.

Cities: Skylines
C

Cities: Skylines

P2

Police, fire, health and education services have coverage areas, with info views showing underserved zones.

The difference worth noticing

Valheim's coverage gates your own building actions; Cities: Skylines covers thousands of simulated citizens.

Case notes are Yoroll editorial summaries; rules may change between versions.

04What could you combine?

Fusion · Original design proposal · not an existing feature
Coverage Radius PlanningBuilding & space+

Animals inside a vet's radius recover faster, but packed pastures spread disease, forcing a cluster-versus-spread call.

Prototype this combo in Yoroll

→Follow the next idea

Building & space

Roads and Entrances

A building isn't open until a road reaches its door.

Prototype complexity
Who plays
Solo decisions
  1. 01Plan a building spot
  2. 02Connect a road
  3. 03Check flow and jams
  4. 04Reroute or widen
Timberborn · Cities: Skylines
Building & space

Order of Construction

Build in the wrong order and workers wall themselves in.

Prototype complexity
Who plays
Solo decisions
  1. 01Queue a set of blueprints
  2. 02Set priorities
  3. 03Workers follow the order
  4. 04Fix whatever stalls
RimWorld · Oxygen Not Included
Building & space

What Counts as a Room

Four walls are not always a room; meet the rules and it starts working.

Prototype complexity
Who plays
Solo decisions
  1. 01Enclose a space
  2. 02Add required furniture
  3. 03The game checks the room
  4. 04Gain a function or resident
Terraria · RimWorld
yorollGAMEPLAY ATLAS

Good mechanics deserve a closer look. Good ideas deserve a next step.

Entries are written by Yoroll editors. Game names and trademarks belong to their respective owners.