Raise the impossible. Read the tower, not just the clock.

Arcade GameComing Soon

  • Twenty floors
  • One shared tower
  • Wind matters

Email me when Plumbline launches

Plumbline is a stacking game that tests two things instead of one. A structural module swings from a crane; one touch releases it, and it carries the crane's speed all the way down, so the correct release leads the target rather than matching it. The day's wind leans on the tower, so dead centre is never enough on its own. Twenty floors, the same tower for everyone, one decision at a time.

Plumbline screen 1
Plumbline screen 2
Plumbline screen 3

Clear rules, real identity, and a reason to improve.

Two skills, not one

Every stacker on the store tests timing. Plumbline tests timing and tower-reading, and the second one dominates: at equal timing skill, reading the tower is worth about 1.54 times the score.

The wind is the day's puzzle

Each day's wind leans on the structure, so the same release that worked yesterday is wrong today. Landing dead centre is necessary and not sufficient.

One tower, everyone

The same twenty-floor tower goes out to every player each day, so a good run is comparable rather than a matter of which board you happened to draw.

The claim is a test, not a pitch

The skill gradient is asserted in the build. If reading the tower ever stops paying, the test fails and the build stops.

Why we built it

Stacking games flatten out because pure timing has a low ceiling. Adding a readable structural lean gives the genre somewhere to grow.

Who it is for

Arcade players who want a short daily run with a real skill ceiling and a reason yesterday's answer will not work today.

How a run works

Watch the swing → read the tower's lean → release early enough to lead the target → land the floor → climb toward twenty.

Play free. Unlock when you're hooked.

Start playing free. Unlock the full game forever for $4.99, or get it included with StackForge Play Pass.

Play Pass includes StackForge games only. Non-game apps are not included.

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Games only. Non-game apps are priced separately.

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Plumbline is in TestFlight.

The engine, daily tower, and design gates are complete and the build is in tester hands. Store review remains before launch.

If you have something to say, we will read it.

No social accounts and no mailing list yet — just an inbox a person actually checks. Bugs, ideas, complaints, or a note about what you want us to make next are all welcome.