← WDeep Drill
A block fox pilots a brass drilling rig through a crystal cavern
DEEP DRILL / HEARTLIGHT EXPEDITION

Deep Drill

Drill deeper. Upgrade faster.

Upgrade your rig, recruit crew and break six seals to restore the Heartlight Beacon.

30 areas · 6 seals · Drill upgrades and automation

From one rock to an underground world

01 / Drill

Drilling starts automatically. Steer through a 5×5 view along fixed lanes; pressure vents automatically. Choose upgrades to break through faster.

02 / Return

Return and sell your haul whenever you choose. A full hold ships home automatically, then drilling continues. Hull failure or pressure rescue retains only 65% of ore income.

03 / Upgrade

Spend coins on drill heads, power, speed and cargo capacity. Backup tools are off by default; set a per-trip allowance in the workshop.

Explore 30 expeditions with coolant springs, magma, fragile crystals and high-pressure layers. Complete each objective and reach its endpoint to unlock the next area.

FAQ

Is progress saved?
Yes, only in this browser when storage is available.