Size It Up Unlimited is a browser game about estimating the real-world size of different objects by comparing their silhouettes. Unlike the daily version, this mode can be played repeatedly without waiting for a new challenge. There is no plot, dialogue, character development, or campaign. Each session consists of several independent comparison rounds, and the goal is to adjust one object until its scale looks correct relative to another.

Comparing Two Objects

Every round presents a reference silhouette and a second object whose size can be changed. The reference stays fixed, while the player enlarges or reduces the target. The objects can come from different categories, including animals, vehicles, buildings, landmarks, household items, and other recognizable subjects. The comparison is based on real measurements, so the player has to estimate how large one object would actually be next to the other.

Rounds and Scoring

Size It Up Unlimited uses short sets of rounds rather than traditional levels. The main actions include:

•         examining the fixed reference object;
•         resizing the target silhouette;
•         comparing proportions between both objects;
•         confirming the estimated scale;
•         viewing the correct real-world size;
•         receiving a score based on accuracy;
•         starting another set after the current one ends.

Each round gives points according to how close the estimate is to the real answer. A more accurate scale produces a higher result, while a large difference lowers the score. The points from all rounds in the set are added together into one total.

Unlimited Mode

The main difference between this mode and the regular daily challenge is repetition. After finishing one set, the player can immediately generate another and continue playing. The combinations of objects can change between sessions, so the same comparison does not always appear in the same order. Unlimited games are separate from the standard daily challenge and are intended for additional practice rather than maintaining a daily streak.

Size It Up Unlimited is controlled with a mouse or touchscreen. The player adjusts the size of the target using the available controls, checks the comparison visually, and confirms the choice when satisfied. There are no enemies, inventories, timers, or upgrades. The game is based entirely on visual estimation, knowledge of real-world proportions, and improving accuracy across repeated rounds.