In Merge Miners 3D, players collect and combine resources in a three-dimensional environment. They character mines and dig beneath the ground to uncover precious minerals and gems. These resources can be stacked and merged to create increasingly valuable items.
Players must prioritize which items to merge and when, as each action has an impact on the overall outcome. The game's goal is to collect as much wealth as possible by creating chains of valuable items. Players can also rotate the playing area to access new sections of the mines.
The game takes place entirely in a browser, eliminating the need for downloads or registrations. As players progress, the difficulty level increases, and new challenges arise, such as stumbling upon buried hazards or hidden underground caverns. By strategically collecting and merging resources, players can unlock greater rewards and progress through the game.