Reduction dated 2026-08-14
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I. GAME OVERVIEW

The objective of Equilibrium is to build a tall, interlocking structural matrix on an unstable base without triggering a collapse.

Equilibrium supports Solo, Collaborative, and Competitive modes. While collaborative and solo play encourage custom house rules, this rulebook details the core mechanics and official competitive standards.

II. Core Benefits

  • Wellness:

Training Focus: A perfect "desk break" to reset your mind between meetings.

3D Modeling in Mind: Sharpen spatial reasoning for kids and adults alike.

Hand-Eye Coordination: Translating a mental plan into a delicate physical placement.

Social Bonding & Team Building: Collaborative modes foster communication and shared triumph as teams work together to solve the "puzzle" of an increasingly unstable tower.

  • Education:

Dynamic Physics Experience: A hands-on lesson in center of mass and rotational inertia.

Tactical Thinking: Planning your moves to trap your opponents in an unstable "Danger Zone".

III. GAME COMPONENTS

  • Polycubes (24–28 pieces): Modular 3D shapes formed by joined unit cubes, divided into 4 distinct colors.
  • Base: A semi-spherical housing that carries the structure and rotates freely under shifting loads (available in smooth or faceted configurations).
  • Interface Plate: A dual-sided mechanical disc that snaps into the Base which sets two configurations:
  • Side A (Inclined-Mode): Features 45° rotated ridges for angled, non-orthogonal stacking.
  • Side B (Vertical-Mode): A flat surface for classic vertical balancing.
  • Anchor Slots: Recessed slots on the Interface Plate designed to lock initial Polycubes into place.
  • Playmat (Optional): A soft surface mat that dampens Base movement to adjust difficulty.

IV. SETUP
  1. Assemble the Base: Insert the Interface Plate into the Base bowl. Choose Side A (Inclined) or Side B (Vertical). Place the Base on a flat surface (or on the Playmat for smoother movement).
  2. Place the Anchors: Place starting Polycubes into the Anchor Slots on the Interface Plate. This creates the foundation structure.
  3. Distribute Polycubes: Choose one of two draft methods:
  • Open Draft (Tactical): Each player takes all polycubes of a single color. Keep your supply visible.
    NOTE: if playing with fewer than 4 players, divide remaining pieces randomly equally
  • Blind Draw (Random): Keep all Polycubes in the bag. On their turn, a player draws the first piece (a respective player’s colour) they touch at the top of the bag without digging.
    NOTE: if playing with fewer than 4 players, pull the remaining pieces randomly).

V. CORE MECHANICS

Players take turns in clockwise order placing one Polycube onto the structure.

Minor Displacement vs. Major Collapse

  • Minor Fall (1 to 3 Pieces): If 3 or fewer Polycubes fall off during your turn, you must collect them and add them to your personal supply. The round continues.
    NOTE: If the piece you just placed falls, you must place it back 

  • Major Collapse (4+ Pieces): If 4 or more Polycubes fall down, a Major Collapse occurs. The round ends immediately.

NOTE: Threshold of collapse criteria (4+) can be changed. 

Passing a Turn

  • Once per round, a player may elect to Pass (skip placing a piece).

VI. COMPETITIVE MODE

Objective

Be the first to place all Polycubes from your hand, or force your opponents into a structural collapse!

Round Flow

  • When a player successfully places their final Polycube, they immediately earn +2 points and step back from the round.
  • The round does not end when the first player finishes. The remaining players continue taking turns.
  • Every subsequent player who successfully empties their hand earns +1 point.

Round End Conditions

A round ends immediately when:

  1. Last Player Remaining: Only one player has Polycubes left in their hand.
  2. Major Collapse: A player causes 4 or more Polycubes to fall.

Winning the game 

Play the agreed number of rounds (e.g., 4 rounds). The player with the highest total score at the end of the final round wins!  

Scoring