
A fresh diamond vein and a mouse button are all you start with in Merge Mine – Idle Clicker. Clicking the vein chips out diamonds, and diamonds buy tools. Each tool occupies a slot on a grid, and two of the same type merge into a newer, stronger one. Put a merged tool in a worker slot and it mines on its own, so diamonds keep coming even while you are away.
The 3D mine is easy to check on for a few minutes and come back to later. Something louder? Super Bomberman 4 is a good follow-up.