Deep Crafter Best Builds & Gear Progression Guide (2026)
I've put about 60 hours into the Early Access build and restarted three times. Each restart I got more efficient — my current factory produces 400 steel plates per minute by hour 25. This guide is about the gear choices that get you there fastest.
The Core Philosophy: Automate First, Upgrade Later
Most survival crafting games teach you to upgrade your personal gear first. Deep Crafter punishes that mindset. A Mk3 drill in your hand mines faster, sure, but a Mk1 automated miner on a rich iron node mines forever while you do something else.
Your first 10 upgrade decisions should all serve one goal: making your factory bigger. Personal gear comes after.
Gear Tier Progression
The game has 6 gear tiers, each tied to a depth range and new material:
Tier 1 (Copper, 0-80m): Your starting gear. Get out of this tier within the first hour.
Tier 2 (Iron, 80-200m): Where you'll spend most of your early game. Iron tools + O2 Mk1 is your workhorse setup.
Tier 3 (Gold, 200-400m): Unlocks advanced smelting and faster conveyors. O2 Mk2 available here.
Tier 4 (Diamond, 400-600m): High-speed mining equipment, Mk3 conveyor belts, oil processing begins.
Tier 5 (Titanium, 600-800m): Endgame production speed. Vertical lifts unlock earlier but the Mk3 lift needs titanium.
Tier 6 (Dark Matter, 800m+): Post-game material. Not needed to finish all current EA content, but the gear is absurdly fast.
Upgrade Priority Order (Don't Deviate From This)
1. O2 Tank — always first at each tier. More oxygen = longer expeditions = more resources per trip. Mk1 at iron tier, Mk2 at gold, Mk3 at diamond.
2. Miner/Drill — your personal mining tool. You'll use it for initial resource gathering at each new depth before you set up automated miners there. Don't skip drill upgrades thinking "I'll just automate everything" — you still need to bootstrap each new area.
3. Conveyor Belt speed — faster belts mean more throughput. A Mk2 belt moves 120 items/minute vs 60 for Mk1. This is a bigger bottleneck than you'd think.
4. Smelter speed — upgraded smelters process ore faster and use less power per unit. The Mk3 smelter is about 40% more energy efficient than Mk1.
5. Personal armor — only when the local wildlife at your current depth is consistently killing you. Don't upgrade armor preemptively.
6. Weapons — Harpoon Gun Mk1 is fine until about 400m. The Mk2 Harpoon with shock rounds is worth it for the 400-600m zone where you'll face larger predators.
The Automation-First Build
This isn't a character build in the RPG sense — Deep Crafter doesn't have classes. It's a build philosophy that prioritizes specific tech tree nodes. I call it the "AF Build" because that's what I named my save file.
Key nodes to rush, in order:
Basic Automation (Tier 1): Unlocks Miner, Smelter, Basic Conveyor. Available immediately after the tutorial — this should be your first 3 tech points.
Splitter/Merger (Tier 2): Lets one miner feed two smelters, or two miners feed one assembler. This is where your factory stops being a single straight line and becomes an actual network. Costs 5 tech points, worth every single one.
Geothermal Efficiency (Tier 2): Reduces generator fuel consumption by 25%. Your generators will eat through fuel rods if you don't take this. I skipped it on my first run and spent half my time making fuel.
Vertical Lift System (Tier 3): The single most important logistics unlock. Vertical lifts move items between depth levels. Without them, your deep-mining operation needs its own smelting setup at depth. With them, you ship raw ore up to your main base. Saves literally thousands of iron plates in redundant infrastructure.
Advanced Assembler (Tier 4): Produces complex components (circuit boards, advanced alloys) that you need for Mk3 everything. Rush this as soon as you hit diamond tier.
Logistics Network (Tier 5): Splitters with programmable filters, smart mergers, overflow handling. This is endgame factory optimization and it's genuinely satisfying to set up.
What NOT to Upgrade
The tech tree has 100+ nodes and about 30 of them are traps — things that sound useful but don't pay off until much later, or things that solve problems you don't have yet.
Skip these early:
- Bio-Cultivation (Tier 2): Lets you grow alien organisms for resources. Cool system, but it needs a dedicated greenhouse with climate control and that's a 10-hour side project. Wait until you have titanium.
- Decorative Structures: The game has decorative base pieces (windows, furniture, lighting). They cost resources and give zero production benefit. Build them when your factory is running, not before.
- Advanced Combat Upgrades: The Torpedo Launcher and Shock Field Generator are fun but you don't need them. A Mk2 Harpoon handles everything through 600m. Save the tech points.
- Alternative Power Sources (Solar, Nuclear): Geothermal is the best power source for 90% of the game. Solar produces half output underwater. Nuclear requires a whole separate processing chain. Stick with geothermal until post-game.
A Note on the O2 Tank Trap
The O2 Tank Mk4 requires Dark Matter — which means killing a Void Titan at 800m+. Most players finish the current EA content with Mk3. Don't burn 20 hours grinding for Mk4 unless you're a completionist. I did and honestly the extra oxygen wasn't transformative. At that depth you have refill stations everywhere anyway.
My Current Setup at 60 Hours
For reference, here's what I'm running:
- O2 Tank Mk3
- Diamond Drill (switched from Titanium because the diamond drill's mining speed enchant is bugged and faster right now)
- Harpoon Gun Mk2 with shock rounds
- Mk3 conveyor backbone feeding 6 smelters, 3 assemblers, and a vertical lift system connecting my 100m base to my 500m mining outpost
- 3 Battery Buffers (total 15,000 stored power)
This setup produces enough to build anything I want within about 5 minutes of deciding to build it. That's the goal. When your factory is that fast, the game stops being about "do I have enough resources" and starts being about "what do I want to build next."