Depth Incremental Progression Guide: Which Milestone Comes Next
Choose your next Depth Incremental milestone: keep buying steps, finish the tutorial chain, open the Fossil dig, clear the layer boss, or Rebirth when ready.
Your next milestone is whichever gate is still closed: the tutorial's first upgrades, the Fossil unlock, the boss guarding the way down, or Rebirth. Match your current state to one of the branches below, then use the sections that follow for the details of that step.
Decision guide
Steps are how you descend
Buying steps is the constant action rather than a milestone you finish: every step takes you deeper into the pit, and each layer hides something new and dangerous. Falling off the stairs puts you back where you fell, so a slip costs time rather than progress. The real brake is price: steps cost more the deeper you go.
The cash room is your first upgrade milestone
The CASH UPGRADES board shows More Cash, Faster Cash and Walk Speed headings with Buy and Max controls, and a separate green panel is labeled 2x Cash. After you buy a few steps, the tutorial sends you to the Upgrades room: in late October 2026 it cost 250 Cash, and the first purchase afterwards was Faster Cash for 250, which ended the tutorial so upgrades such as More Cash and Walk Speed could be bought.
If the tutorial prompts are still on screen, this room is your milestone.
Fossils: unlock, then dig
Fossils sit behind their own cash gate. In late October 2026 they unlocked once the player had 2,000 Cash, and each fossil cost 250. Once the gate is open, the DIRT FOSSILS room is where you dig: a large fossil skull display, a yellow-bordered digging area you enter holding a shovel, a Dirt Fossils collection board, and an adjacent FOSSIL UPGRADES board listing More Fossils, Faster Digs and Fossil Luck.
The layer boss is the gate to going further
Bosses guard each layer, and the game expects you to defeat the boss guarding a layer before going further. Once you reach a guarded layer, that fight is the next milestone. Clear it and the descent continues. If the fight is the blocker, start with the boss fight tips and the layers guide.
Upgrade trees carry the long run
The game has many different upgrade trees, each offering its own path for improving your character. Luck matters while you dig: with extra Luck active, your chances of finding rare fossils and shiny items rise, and those finds feed into your upgrade trees, so stronger upgrades let you clear layers faster and reach greater depths.
Rebirth when you are ready
Rebirth is the milestone you take when you are ready: it grows your character stronger and lets you dive deeper into the pit. The overall loop is buying steps, digging and Rebirths. If you are still learning the loop, the beginner guide covers the first session.

Related Guides
Boss Fight Tips
Prepare for a layer boss by digging rare fossils and shinies that feed your upgrade trees first.
Beginner Guide
Buy your first steps, open the Upgrades room and reach the 2,000 Cash milestone that unlocks Fossils.
Layers Guide
See how buying steps descends the pit, what each deeper layer changes and where layer bosses guard the way.
Titles Guide
Find the Titles door, its 150M Cash charge and how higher Luck improves the chance of better Titles.