How you place drills on your plot in Dig a Garden directly affects your total Diglets earnings. Created by The Heap, this Roblox drill simulator relies on a core loop of buying drills, placing them on your plot, and collecting the items they dig up—even while offline. Because your drills are the engine of your income, understanding plot management, inventory caps, and drill synergies is essential for progressing from a novice gardener to a late-game tycoon. This guide covers optimal drill placement, the best combinations, and advanced plot management strategies.
Basic Drill Placement Rules
Follow these fundamental rules for drill placement to ensure you are maximizing your passive income potential at every stage of the game:
- Fill every slot — Empty slots waste potential earnings. Every active drill contributes to your total Diglets per hour. An empty slot is literally a hole in your wallet.
- Use your best drills — Higher-tier drills earn more per slot. Always prioritize placing your highest-tier drills first before filling the remaining slots with lower-tier alternatives.
- Never leave slots empty — Even a C-tier Starter Drill earns more Diglets than nothing. If you are saving up for a Turbo Digger, do not remove your Standard Borer to wait; keep the Borer running until you can make the swap instantly.
- Upgrade, do not remove — Replace drills in-place rather than leaving slots empty. When upgrading, buy the new drill, place it directly into the slot occupied by the weaker drill, which will automatically swap them out. Removing a drill first provides a partial refund but halts production entirely.
Drill Comparison and Synergies
Understanding the specific stats and specialties of each drill is crucial before designing your plot layout. Each drill has a different digging speed, item rarity bias, and overall Diglet yield.
| Drill | Tier | Cost | Dig Speed | Specialty | Best For |
|---|---|---|---|---|---|
| Starter Drill | C | 0 | Slow | Basic Common items | First slot filler |
| Standard Borer | B | 500 | Moderate | Consistent Common/Unusual | Early game steady income |
| Group Drill | A | Free (Group) | Moderate | Balanced digging | Free early-game powerhouse |
| Turbo Digger | A | 5,000 | Fast | Rapid Common/Unusual | Mid-game Diglet farming |
| Deep Piercer | A | 12,500 | Slow | Scarce/Legendary items | Rare item hunting |
| Mega Borer | S | 50,000 | Fast | Massive Diglet yield | Late-game F2P meta |
| Galaxy Drill | S | Off-sale | Very Fast | High yield + Rare bias | Premium endgame (unobtainable) |
Drill synergies are vital. Because the Turbo Digger digs rapidly but mostly unearths Common items, pairing it with a Deep Piercer—which digs slower but has a much higher chance of finding Scarce or Legendary items—creates a balanced economy. The Turbo Digger pays the bills, while the Deep Piercer hits the jackpot.
Optimal Drill Setups by Stage
As you progress through Dig a Garden, your plot layout should evolve. Below are the optimal configurations for each phase of the game.
Early Game (0-20K Diglets)
During the early game, your primary goal is establishing a baseline of passive income. You likely only have 3 to 4 plot slots available.
| Slot | Drill | Reason |
|---|---|---|
| 1 | Group Drill (free) | Best free A-tier drill. Join The Heap group to claim this for free. |
| 2 | Starter Drill | Only option available at the very start. |
| 3+ | Standard Borer | First affordable upgrade; replaces the Starter Drill as soon as possible. |
Strategy: Your first 500 Diglets should immediately go toward a Standard Borer. Do not save for the Turbo Digger yet; the Borer will pay for itself quickly and accelerate your savings.
Mid Game (20K-100K)
In the mid-game, you have unlocked more plot slots and have a steady cash flow. This is where you start specializing your plot.
| Slot | Drill | Reason |
|---|---|---|
| 1-2 | Turbo Digger | Fast dig speed generates reliable bulk Diglets. |
| 3-4 | Deep Piercer | Rare item discovery provides massive payout spikes. |
| 5+ | Group Drill or Standard Borer | Fill remaining slots until you can afford more Turbo Diggers. |
Strategy: The transition from Standard Borers to Turbo Diggers takes time. Replace your Borers one by one. Keep your Group Drill running in the background—it remains a solid A-tier performer even surrounded by purchased drills.
Late Game (100K+)
The late game is about absolute optimization. You have maxed out your plot slots and are pushing for the highest possible Diglets per hour.
| Slot | Drill | Reason |
|---|---|---|
| 1-Max | Mega Borer | Maximum Diglets/hour. The undisputed F2P meta. |
| Optional: 1-2 | Deep Piercer | Legendary hunting alongside Diglets. |
Strategy: The Mega Borer costs 50,000 Diglets, but its yield per hour dwarfs the Turbo Digger. Most late-game players run a full plot of Mega Borers. However, if you are hunting for specific Legendary items to complete collections or sell for massive bulk, swapping one or two Mega Borers for Deep Piercers is a highly effective hybrid strategy.
Offline Progression and Inventory Caps
One of the most critical mechanics in Dig a Garden is offline progression. Your drills continue to dig items even when you are offline. However, this is heavily restricted by your inventory capacity.
If your inventory fills up while you are offline, your drills will stop earning Diglets. They quite literally hit a wall. This makes inventory cap management just as important as drill placement.
| Offline Duration | Risk Level | Best Setup Strategy |
|---|---|---|
| < 1 Hour | Low | Full Turbo Diggers / Mega Borers (High yield, fills fast) |
| 1 - 4 Hours | Medium | Mix of Turbo Diggers and Deep Piercers |
| 4 - 8 Hours | High | Include 1-2 Deep Piercers (Slower dig, high value per slot) |
| 8+ Hours (Sleep/School) | Very High | Prioritize inventory upgrades over new drills |
How to manage this: Before you log off, check your inventory. If you are close to full, sell your items first. If you know you will be away for 8 hours and your inventory will cap after 3 hours, you are losing 5 hours of passive income. In this scenario, it is actually better to use a Deep Piercer—which digs slower but yields higher-value items—rather than a Turbo Digger, which will fill your inventory too quickly and leave your drills idling.
Walkthrough — The Perfect Plot Upgrade Path
Upgrading your plot can be intimidating when you have multiple empty slots and not enough Diglets. Follow this step-by-step walkthrough to ensure you never waste time or money:
- Claim the Freebie: As soon as you spawn, join The Heap group and claim your free Group Drill. Place this in your first slot immediately.
- The First 500: Let the Group Drill and Starter Drill run. Do not buy cosmetics or anything else. Save exactly 500 Diglets.
- Buy the Borer: Purchase a Standard Borer and place it in slot 2 or 3. Your earnings will now double or triple.
- The 5K Grind: Keep saving. Your next milestone is 5,000 Diglets for the Turbo Digger. Buy it and place it in slot 1, replacing the Starter Drill.
- Fill and Replace: Continue buying Standard Borers for any new slots you unlock. Once all slots are filled, start replacing the Borers with Turbo Diggers one by one.
- The 12.5k Pivot: Once you have 2-3 Turbo Diggers, save 12,500 Diglets for a Deep Piercer. Place this to start generating Scarce and Legendary items.
- The 50k Endgame: Finally, begin the long grind to 50,000 Diglets for the Mega Borer. Replace your Turbo Diggers with Mega Borers as funds allow.
FAQ
Q: How many drills can I place on my plot? A: The number depends on your plot size, which may be upgradeable. Fill every available slot with the best drills you can afford. As you progress, you will unlock more slots, giving you more opportunities to place additional drills.
Q: Can I move drills between slots? A: You can remove drills from slots, but you get a partial refund. Place new drills directly in the same slot to avoid leaving it empty. It is almost never worth moving a drill just to rearrange your plot, as the refund penalty means you lose Diglets.
Q: Should I use different drills or all the same? A: For maximum Diglets, use all Mega Borers. For balanced gameplay, mix Mega Borers with Deep Piercers for both earnings and legendary hunting. A diverse setup helps mitigate inventory cap issues during long offline sessions.
Q: What is the worst drill placement mistake? A: Leaving slots empty. Even the worst drill on an empty slot earns more Diglets than a blank slot earning nothing. Never leave a slot vacant while saving for an expensive drill; always keep a cheaper drill running in the meantime.
Q: Does the Galaxy Drill outclass the Mega Borer? A: Yes, the Galaxy Drill is the absolute best drill in the game with superior dig speed and rare item biases. However, it is a premium S-tier item that is currently off-sale. For all practical purposes, the Mega Borer is the highest-tier drill available to F2P players and should be your endgame goal.
Q: How do inventory caps affect my placement strategy? A: If you cannot check the game frequently, high-speed drills like the Turbo Digger will fill your inventory quickly and stall your earnings. If you play infrequently, lean heavily into Deep Piercers or invest your Diglets into expanding your inventory capacity before buying more high-speed drills.
Q: Should I sell my old drills when upgrading? A: Only if you need the partial refund to afford the next drill. Otherwise, keep your old drills placed in your plot until the exact moment you have the new drill ready to put down. Selling first leaves an empty, non-earning slot.