Welcome to Sky Lines

Discover the city, one story at a time.

Move buildings to new addresses. Explore one to check its place, or two to uncover how they relate.

Sky Lines v0.36

Prototype pass history

  1. v0.36

    Made mobile taps select immediately while separating small movement, page scrolling, and intentional building drags.

  2. v0.35

    Separated selection from swapping, consolidated navigation, and added fair persistent restart and replay scoring.

  3. v0.34

    Unified tutorial progression, hints, Risk, and Help around one primary Explore control.

  4. v0.33

    Moved all tutorial directions, hints, options, and actions into the Explore panel across desktop and mobile layouts.

  5. v0.32

    Shortened and calmed the three-city tutorial with unobstructed instructions and one teaching highlight at a time.

  6. v0.31

    Made puzzle cards show validated play, resume progress, and clearly separate replay states.

  7. v0.30

    Hardened the guided tutorial with clearer deductions, reliable resume and replay, accessible controls, and full browser coverage.

  8. v0.29

    Rebuilt first-time learning as one guided three-city tutorial and moved replay tools into the corner menu.

  9. v0.28

    Made high-risk warnings subtle and kept tall buildings safely within lanes and drag bounds.

  10. v0.27

    Made discovery, relationships, correct placements, and city completion more responsive.

  11. v0.26

    Sized mobile lanes to the tallest safe building and anchored play in thumb reach.

  12. v0.25

    Rebuilt portrait-phone play as a focused, no-scroll game canvas.

  13. v0.24

    Kept neighborhood regions visible in the shortest landscape game view.

  14. v0.23

    Rebuilt rotated-phone play as a stable, no-scroll game canvas.

  15. v0.22

    Improved the rotated-phone game layout and controls.

  16. v0.21

    Corrected mobile board proportions and added version tracking.

  17. v0.20

    Improved mobile puzzle layout and Explore access.

  18. v0.19

    Refined Explore failures and puzzle presentation.

  19. v0.18

    Added clue-key and warning controls.

  20. v0.17

    Condensed Explore guidance.

  21. v0.16

    Added the repository publishing guide.

  22. v0.15

    Added single-building Explore checks.

  23. v0.14

    Polished the learning flow and city presentation.

  24. v0.13

    Refined tutorial flow and final reveals.

  25. v0.12

    Improved solved-puzzle feedback and controls.

  26. v0.11

    Refined onboarding and scene reveals.

  27. v0.10

    Improved clue contrast and resolved floors.

  28. v0.9

    Refined region and building-hint visuals.

  29. v0.8

    Prepared automatic review deployment.

  30. v0.7

    Clarified paired hints and building stories.

  31. v0.6

    Refined building drag behavior and proportions.

  32. v0.5

    Refined comparison-arrow rendering.

  33. v0.4

    Aligned paired hints by story height.

  34. v0.3

    Used building height for the clue limit.

  35. v0.2

    Refined clue and region layout.

  36. v0.1

    Created the initial Sky Lines prototype.

Welcome to Sky Lines!

Every buildinghas a home.

Discover where they belong.

Learn to play in about 2 minutes.

Learn to Play

Choose guided practice or a quick reference.

How to play

Put every building at its address.

  1. Click or tap buildings to select one or a pair for Explore. Selecting never moves them.
  2. Move an unlocked building by dragging it onto another unlocked building. With a keyboard, press M on a building, move focus to the destination, then press Enter or Space.
  3. Select one building and Explore to discover whether it belongs at its current address.
  4. Select two buildings and Explore to discover something true about their relationship.
  5. Use those discoveries to arrange the city. Stories brighten when your current arrangement satisfies them.
  6. Discoveries add stories to buildings. Three are safe; a fourth story on an unlocked building ends the puzzle.
  7. Use ⚡ to commit the whole skyline after confirmation. Every address must be correct or the puzzle ends immediately.
  8. Some puzzles may use letter stories. A hidden letter appears only when Explore locks its building, and it counts toward the same story limit.

Neighbor
These buildings belong beside one another.

Same region
These buildings belong in a shared region.

=10

Equals ten
These addresses add to ten.

Order
The arrows show which building belongs farther right.

4

Not #
An Explore fallback ruled out the shown address for this building.

Sky Lines

City solved!