Lift a Cube Heaviest Cube: Heaviest-Supported Target and How to Lift It

As of the September 2026 snapshot, the heaviest-supported target in Lift a Cube is the final block at the end of the map — the game's stated long-term goal. Guides have called it the Dark Colossus Block; gameplay footage has identified the last cube as a "Genesis cube." Observed Strength requirements for it range from 1.3 billion to 2 billion. No developer-confirmed weight exists, so treat any specific kg number as a player-reported estimate, not an official stat.

What the heaviest-cube evidence establishes

The supported target is the final block at the end of the map. Community cube references identify it as the Dark Colossus Block — the biggest cube by footprint and kg readout at the very end of the route. Gameplay videos reaching the end of the route observed the last cube as a "Genesis cube" requiring 1.4 billion Strength, and one progression video reported "Literally 2 billion strength for the last cube right here," lifted it, earned 1.2 billion cash, and found there were no more cubes beyond it. The cube's exact name and any kg figure are currently inconsistent between player reports; what's stable across them is the target itself: the end-of-map block. Because cube names and readouts can shift with updates, check the cube's in-game readout when you arrive.

Read the target's observed weight and Strength recommendation

Observed Strength requirements for the final cube differ between reports and sessions: two guides place it at 1.3 billion — described as achievable only "with high-multiplier arm materials and most of the purchasable upgrades on the map" — while gameplay footage observed 1.4 billion (Genesis cube) and 2 billion. A successful lift on the last observed cube paid roughly 1.2 billion Cash.

One key detail: the kilogram readout and Recommended Strength are separate fields. The available sources do not establish an official formula between them. Use the visible recommendation as a planning signal, recheck it in game, and do not convert the kg readout into a Strength threshold.

Prepare and follow a documented attempt

Documented preparation for the end-of-map attempt:

• Prepare the observed improvements: build Strength, improve your arms, and use documented materials before attempting the final block. The sources do not publish an official formula or universal minimum.
• Train and farm: train via push-ups (Train key 1), buy arm and train-speed upgrades with Cash, and roll the Arm Materials Chest for multipliers. Farm diamond-plate/heavy-steel tier cubes until your Strength comfortably clears the target.
• Execute the lift: approach the cube to trigger LIFT, then rapidly tap the Left Mouse Button to push the icon across the bar. Meeting or exceeding the recommendation is the safest preparation, but a separate observation recorded a lift slightly below a recommendation, so this page does not call it an absolute lock.
• If it fails: check your Strength first and review the controls. Train more and return without assuming one session establishes a universal threshold.
• Timing and payout: one recording observed roughly 1.2 billion Cash from the last visible cube. Recheck the current payout rather than treating it as fixed.

Limits of the claim and changes that require rechecking

This identification is dated and bounded, not a confirmed absolute record. Cube names differ between player reports (Dark Colossus Block vs. Genesis cube), and observed recommendations vary between 1.3, 1.4, and 2 billion Strength. The game shows a cube-refresh event, but the sources do not confirm which fields it changes. Promotional thumbnails with dramatic readouts are marketing visuals, not a confirmed weight ceiling. No developer-published weight table or confirmed absolute record exists, so the heaviest observed cube does not prove that updates cannot extend the map. This page's evidence is dated to September 12, 2026 — recheck map coverage and in-game readouts before treating any value as current.