Background and Worldview: You are a dwarf miner who accidentally strikes a “living vein”—a type of self-growing crystal ore. The vein begins to grow wildly, filling the entire mine and releasing pollen that corrodes the rock. You must run along the minecart tracks through the collapsing mine to escape to the surface. Along the way, you will encounter cave trolls and slimes infected by the pollen.

Core Gameplay: The minecart tracks branch off. You need to switch tracks (tap the left/right arrows on the screen) to choose your direction. Different directions will present different obstacles and rewards. You can use a pickaxe to break small crystals blocking your path (each use has a cooldown). Collecting “gems” fills your “luck,” doubling the drop rate when full.

Features: “Dynamic Map”: The growth of the vein is randomized, resulting in a different map each time you play, but key nodes are retained. The minecart has speed gears (1-5), which you can manually shift by sliding up and down. Higher gears are faster but more difficult to control. There are over 50 minecart upgrades (anti-slip wheels, enhanced lights, etc.). It supports a “Miner’s Notes” feature to record all random map seeds.

Level Introduction: 1500 levels in total (random map seeds). Levels 1-500 are shallow mines, 501-1000 are medium-level mines (underground rivers), and 1001-1500 are deep mines (lava and ruins).