Dome Keeper Beginner Guide: Early Mining Layout and Upgrades

To survive the early runs of Dome Keeper, dig horizontal branch tunnels spaced two blocks apart, carry light mineral loads to avoid movement penalties, and return to the dome cockpit before hostile waves arrive. Invest your initial Iron into mining drills and movement speed rather than early weapon firepower, and reserve all Cobalt strictly for structural dome repairs.

Two-Tile Strip Mining Layout

Digging open cavities wastes mining time and wears down dome health without yielding extra minerals. Mineral clusters—Iron, Water, and Cobalt—occupy nodes at least two tiles wide. Systematic strip mining exposes these deposits with the lowest number of broken blocks.

1. Central Shaft: Dig a straight vertical corridor directly downward from the dome hatch.
2. Horizontal Branches: Leave two solid, unmined blocks between each horizontal explorer tunnel. Because deposits span at least two blocks, this two-block spacing reveals every hidden node across both tunnel walls.
3. Vertical Step Down: Space each subsequent horizontal pair three vertical blocks below the previous branch to maintain full visual coverage across the underground grid.
4. Clean Corners: Cut 90-degree corners where horizontal tunnels meet the central vertical shaft. Sharp corners keep towed minerals from snagging on rough edges during your climb.

Avoid clearing out empty dirt rooms. Breaking blocks that do not reveal new unmined faces drains valuable seconds between waves.

Wave Timing and Return Windows

In the early game, you lack automated warning equipment. You must monitor the wave meter in the bottom corner of your screen manually to ensure you man the cockpit before monsters reach the dome.

Deep tunnels demand longer travel times. Once digging two or three tiers down, reserve 20 to 25 percent of the cycle meter purely for ascending. If the wave indicator flashes red while you are dragging minerals, drop your cargo immediately. Towing ore slows movement, and failing to reach the defense console before attackers arrive leads to preventable dome damage.

Mineral Hauling and Weight Limits

Dome Keeper applies a movement penalty based on the number of items attached to your keeper. Towing four or five mineral chunks on base equipment slows you to a crawl, leaving you stranded underground when combat starts.

• Limit Early Loads: Carry loads of only two or three items per trip during early cycles.
• Stage Large Veins: When clearing a large vein of six to eight Iron pieces, mine all blocks and gather the loose minerals at the junction of your central shaft.
• Haul in Batches: Transport one small bundle to the dome, defend the incoming wave, and grab the remaining minerals from the shaft mouth on your next descent.

First-Tier Upgrades and Resource Economy

Balancing worker capabilities against defensive upgrades dictates early survivability. Overspending on weapons halts your economy, while neglecting defense leads to early destruction.

Upgrade Priorities

• Drill Strength: Buy Tier 1 Drill strength first. Denser lower rock layers require significantly more hits to clear. Improving your drill reduces hits per block and speeds up excavation.
• Worker Mobility: Purchase jetpack speed and carry capacity right after your first drill upgrade to offset the weight of larger mineral bundles.
• Weapon Tracking: When upgrading the base Laser, invest in weapon traversal speed before raw damage. The stock laser moves slowly across the dome canopy; higher traversal speed allows you to eliminate fast aerial enemies before refocusing fire on heavy ground attackers.
• Cobalt Preservation: Treat Cobalt as emergency insurance. Cobalt is the rarest resource and the only material capable of restoring dome structural integrity. Keep Cobalt banked to repair hull damage sustained during heavy swarm attacks.