Bubble Flask 2048 is a merge game based on the highly popular 2048 game. The player must evolve bubbles in a flask to create higher-numbered ones. They can only accomplish this task by selecting two or more adjacent bubbles. Their ultimate goal is to create a 2048 bubble and then reach new milestones by continuing to merge and create ever-higher-numbered bubbles.
All bubbles look like colored circles. Unlike other 2048 games, this one doesn't perform an auto-merge when two matching bubbles come into contact with each other. Instead, the player must select a bubble in a cluster of matching adjacent ones to prompt the game to complete the merge. For example, they select a single bubble in a cluster of yellow #2 circle bubbles to create a teal #4 bubble. The game then drops one or more bubbles into the container to fill gaps and present new merge opportunities.
Bubble Flask 2048 has four buttons on the right side of the container that can help the player perform merges and other tasks. For example, the first button shakes the container to reposition the bubbles. The second button randomly pops bubbles. They player can only use these buttons if they have enough money. They can track their balance in the upper-left corner next to a coin marked with an electricity symbol.