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World of Goo / OCD & towers guide

World of Goo OCD and tower guide: ball counts, moves and time goals

Separate a normal clear from the level’s optional optimization condition.

Edition covered

The original World of Goo campaign using publisher PC screenshots. World of Goo 2 introduces different creatures and fluid systems; they are not part of this reference.

Read the individual OCD condition

Black Goo Balls form an irregular tower above a grassy base.
Black Goo Balls form an irregular tower above a grassy base.

OCD is a named optional challenge in the game. Depending on the level it asks for a ball total, move limit or time target, so there is no universal rule to simply build the tallest structure.

Read the individual OCD condition
Goal typeOptimizeAvoid
More balls collectedFewer permanent nodesSpending the rescue supply on decoration
Fewer movesEvery placement’s valueConstant rearrangement
Faster timeA known stable routeImprovising a new structure during the attempt
Corporation heightBase strength and balanceA tall narrow spine with no bracing

Choose the matching optimization

A move-limited solution may keep an unstable-looking but sufficient bridge. A ball-count goal emphasizes minimizing permanent nodes while still delivering the loose Goo safely.

Choose the matching optimization
Tower symptomCause to inspectAdjustment
Base bends sidewaysInsufficient widthAdd a broader support triangle
Top swings heavilyToo much mass above a weak jointReinforce below the sway
One side sinksUneven supportBalance the load before adding height
Extra ball worsens wobbleWeight added during motionLet the structure settle first

Surplus Goo supports the Corporation tower

The sandbox gives a separate place to build for height. A wide foundation and careful reinforcement matter as much as the number of balls available.

Do one goal per attempt

First prove the level can be cleared reliably. Then remove unnecessary placements or shorten the route for its exact OCD requirement instead of changing every part of the design at once.

References
Guide references
ReferenceWebsite
World of Goo publisher listingstore.steampowered.com
Goo Ball type referencestrategywiki.org
Chapter-one level directoryworldofgoo.fandom.com
Developer: World of Goo2dboy.com