Our Dig a Garden tier list ranks every drill from S-tier to C-tier based on rigorous evaluation criteria. This is the definitive ranking to help you choose the best drills for your playstyle. Whether you are a brand new player just placing your first Starter Drill or a seasoned veteran optimizing your plot for maximum offline earnings, understanding the strengths and weaknesses of each drill is essential for efficient progression.
Tier List Criteria
We evaluate drills on four key criteria with weighted scoring:
| Criterion | Weight | Description |
|---|---|---|
| Diglets Per Hour | 35% | How many Diglets the drill earns per hour of operation |
| Legendary Drop Rate | 25% | Chance of discovering legendary-tier items |
| Dig Speed | 20% | How quickly the drill discovers items overall |
| Value for Cost | 20% | Return on investment compared to drill price |
The 35% weight assigned to Diglets Per Hour reflects the core progression loop of Dig a Garden. Because better drills are purchased with Diglets, your earning velocity dictates how quickly you can scale your operation. Legendary Drop Rate is weighted heavily at 25% because late-game wealth spikes are almost entirely driven by finding high-value Legendary items, which sell for massive sums. Dig Speed determines how frequently your inventory fills up, which is crucial for active players who empty their plots frequently. Finally, Value for Cost ensures that accessibility and return on investment are factored in, preventing a 1,000,000 Diglet drill from automatically ranking higher than a 100,000 Diglet drill that performs almost as well.
S-Tier Drills
S-tier drills are the absolute best in Dig a Garden. They dominate in their specialties and offer the highest returns.
Galaxy Drill — S-Tier (Premium)
- Diglets/Hour: Very High
- Legendary Rate: Highest in game
- Dig Speed: Very Fast
- Value: Premium only (off-sale)
The Galaxy Drill is the ultimate drill for legendary item hunters. Its legendary drop rate is unmatched, making every drilling session potentially rewarding with ultra-rare finds. Currently only available through the Galaxy Gamepass, which is off-sale.
For players who managed to purchase the Galaxy Gamepass before it went off-sale, this drill offers an unparalleled advantage. It consistently pulls in Scarce and Legendary items at rates that completely warp the game's economy. When paired with an expanded inventory, the Galaxy Drill can generate millions of Diglets overnight. Its dig speed is so high that it effectively turns your plot into a high-frequency slot machine for rare items. If you see a player with a plot full of Galaxy Drills, you are looking at someone who has maximized their earning potential to the absolute limit.
Mega Borer — S-Tier (F2P)
- Diglets/Hour: Highest F2P
- Legendary Rate: Moderate
- Dig Speed: Very Fast
- Value: Excellent (~100K Diglets)
The Mega Borer is the best F2P drill for money-making. It has the highest Diglets-per-hour rate among free options, making it the cornerstone of any efficient earning strategy. Every F2P player should work toward a full plot of Mega Borers.
Clocking in at approximately 100,000 Diglets, the Mega Borer represents the pinnacle of free-to-play grinding. While its Legendary drop rate is only moderate, its sheer Diglet generation makes up for it. A full plot of Mega Borers will reliably churn out Uncommon and Scarce items, providing a steady, predictable stream of income. This consistency makes it far superior for long-term wealth generation compared to the more volatile Deep Piercer. Once you unlock this drill, your gameplay shifts entirely from saving to scaling. Check out our Mega Borer Deep Dive for exact earning calculations.
A-Tier Drills
A-tier drills are strong performers that excel in specific areas. They are excellent choices for mid-to-late game progression.
Deep Piercer — A-Tier (F2P)
- Specialty: Rare Item Discovery
- Best F2P legendary hunting drill
The Deep Piercer is uniquely designed to punch through the rare item threshold. While it doesn't generate the raw Diglet volume of the Mega Borer, its enhanced Legendary drop rate makes it a favorite for players who prefer the thrill of the hunt. If you are actively playing and emptying your inventory frequently, the Deep Piercer can yield massive singular payouts. However, its lower overall Diglet generation means it suffers during offline progression, where consistent common item accumulation is key.
Turbo Digger — A-Tier (F2P)
- Specialty: Fast Dig Speed
- Best for frequent item collection
The Turbo Digger is the speed demon of the A-tier. It hits item breakpoints faster than any other mid-tier drill, meaning your inventory fills up rapidly. This makes it an incredible choice for active players who are sitting at their screens, constantly selling items. However, be warned: if you leave the Turbo Digger running overnight without a maxed-out inventory, its fast dig speed is completely wasted, as it will hit your inventory cap in minutes and sit idle for the rest of the night.
Group Drill — A-Tier (F2P)
- Specialty: Free Group Perk
- Best early-game value (free from The Heap group)
The Group Drill is essentially a free ticket out of the early game. By simply joining the The Heap Roblox group, you are handed a drill that outclasses the Starter Drill in every conceivable way. It digs faster, earns more Diglets, and has a slightly better rare item rate. There is zero reason not to claim this immediately upon starting the game. It bridges the gap perfectly until you can afford your first Standard Borer.
B-Tier Drills
B-tier drills are reliable mid-game options that bridge the gap between starter and end-game drills.
Standard Borer — B-Tier (F2P)
- Specialty: Reliable Mid-Game
- First meaningful upgrade from Starter Drill
The Standard Borer is the workhorse of the mid-game. Costing a modest amount of Diglets, it provides a substantial boost over the Starter and Group Drills. Its stats are perfectly balanced, offering a decent Diglets-per-hour rate alongside an acceptable dig speed. You will likely have a plot full of Standard Borers for a significant chunk of your playtime as you save up for the expensive A-tier and S-tier options. It is reliable, predictable, and a necessary stepping stone.
C-Tier Drills
C-tier drills are starter options that should be replaced as soon as possible.
Starter Drill — C-Tier (F2P)
- Specialty: Starting Out
- Replace immediately when possible
The Starter Drill is given to you the moment you spawn into the game. While it serves the purpose of teaching you the core loop—placing a drill, letting it dig, and selling items—it is abysmal in terms of actual performance. Its Diglets-per-hour is incredibly low, and the chances of finding anything better than a Common item are almost non-existent. Claim the Group Drill from The Heap community immediately and replace your Starter Drill to begin your actual progression. For more early game tips, see our Dig a Garden Beginner's Guide.
Complete Drill Stats Comparison
Below is a comprehensive data table comparing the raw statistical performance of every drill in Dig a Garden. These numbers represent average values gathered from community testing and represent baseline performance before inventory limits are factored in.
| Drill Name | Tier | Cost (Diglets) | Diglets/Hour | Dig Speed (Items/Min) | Legendary Rate |
|---|---|---|---|---|---|
| Galaxy Drill | S | Premium (Off-sale) | ~12,500 | 4.5 | Very High (5.0%) |
| Mega Borer | S | ~100,000 | ~10,000 | 3.8 | Moderate (1.5%) |
| Deep Piercer | A | ~50,000 | ~6,500 | 2.5 | High (3.0%) |
| Turbo Digger | A | ~40,000 | ~7,000 | 4.2 | Low (0.8%) |
| Group Drill | A | Free | ~3,000 | 1.5 | Low (0.5%) |
| Standard Borer | B | ~10,000 | ~4,500 | 2.0 | Low (0.6%) |
| Starter Drill | C | Free | ~1,000 | 0.8 | Very Low (0.1%) |
Return on Investment (ROI) Breakdown
When deciding which drill to save up for, understanding the Return on Investment (ROI) is critical. The table below outlines how many hours of active drilling it takes for a drill to pay for itself, allowing you to prioritize your purchases efficiently.
| Drill Name | Cost (Diglets) | Est. Diglets/Hour | Hours to Pay Off | Priority |
|---|---|---|---|---|
| Standard Borer | 10,000 | 4,500 | ~2.2 Hours | High (Early) |
| Turbo Digger | 40,000 | 7,000 | ~5.7 Hours | Medium |
| Deep Piercer | 50,000 | 6,500 | ~7.7 Hours | Medium |
| Mega Borer | 100,000 | 10,000 | ~10.0 Hours | Highest |
As the data shows, the Standard Borer has an incredibly fast ROI, making it the obvious first purchase. While the Mega Borer takes longer to pay for itself, its higher earnings ceiling makes it the ultimate goal for F2P players. Skip the Turbo Digger and Deep Piercer if your sole goal is maximizing raw Diglet generation, but consider them if you want active-play variety or rare item hunting before reaching the 100K milestone.
Drill Progression Walkthrough
Optimizing your plot requires a strategic approach to upgrading. Follow this step-by-step walkthrough to ensure you are always maximizing your Diglet generation without wasting currency on unnecessary intermediate steps.
Step 1: The Group Drill Leap Do not spend any time upgrading the Starter Drill. The moment you load in, open the game's group interface and join The Heap. Claim your free Group Drill and place it on your plot immediately. This single action triples your early earning potential.
Step 2: The Standard Borer Grind Use your Group Drill to accumulate items and sell them. Your first milestone is 10,000 Diglets to purchase a Standard Borer. Replace your Group Drill with the Standard Borer. Continue saving until you can fill your plot with Standard Borers. A full plot of these will generate a steady stream of income.
Step 3: The A-Tier Decision Once your plot is generating consistent income, you face a choice: save 40K-50K for an A-tier drill, or keep hoarding for the 100K Mega Borer. If you play actively and can empty your inventory every few minutes, buying one Turbo Digger to place alongside your Standard Borers can accelerate your earnings. If you mostly play passively, skip the A-tier drills entirely and save for the Mega Borer.
Step 4: The F2P Endgame Replace your plot one drill at a time with Mega Borers. Because the Mega Borer has such a high Diglets-per-hour rate, each one you place accelerates the time it takes to buy the next. Before you know it, your entire plot will be filled with S-tier F2P drills, and you'll be swimming in Diglets.
Offline Progression and Inventory Management
One of the most critical mechanics in Dig a Garden is offline progression. Your drills continue to dig items even when you are offline, but there is a major catch: inventory caps block earnings. If your inventory fills up while you are away, your drills stop generating items, and you lose out on potential Diglets.
This mechanic fundamentally changes how you should evaluate drills. A Turbo Digger, for example, has an incredibly fast dig speed. If you log off for 8 hours with a Turbo Digger and a small inventory, it will fill up in 30 minutes and sit idle for the remaining 7.5 hours. A Mega Borer, with its slower dig speed but higher Diglets-per-item ratio, takes longer to fill an inventory, ensuring continuous earnings throughout your sleep.
| Playstyle | Best Drill Choice | Inventory Requirement | Strategy |
|---|---|---|---|
| Active (Hourly) | Turbo Digger / Deep Piercer | Moderate | Empty inventory frequently to leverage fast dig speeds |
| Passive (Overnight) | Mega Borer / Galaxy Drill | Maximum | Upgrade inventory size before bed to prevent cap-outs |
| Early Game | Group Drill | Low | Log in often to sell and save for Standard Borer |
To maximize offline earnings, always prioritize purchasing inventory upgrades before buying expensive, fast drills. An empty inventory is a multiplier for your drill's potential. If you cannot afford to expand your inventory, rely on slower, high-value drills like the Mega Borer rather than fast, low-value drills like the Turbo Digger.
FAQ
Q: Why is the Mega Borer S-tier and the Deep Piercer only A-tier? A: The Mega Borer earns significantly more Diglets per hour, which is weighted at 35% of our criteria. The Deep Piercer has better legendary rates but lower overall Diglets earnings. Over a long period, the raw volume of Diglets from the Mega Borer outpaces the occasional Legendary spike from the Deep Piercer.
Q: Can C-tier drills find legendary items? A: Yes, but at an extremely low rate. The Starter Drill's legendary drop rate is negligible compared to A-tier and S-tier drills. You could theoretically dig for days with a Starter Drill and never see a Legendary.
Q: Does the tier list change with updates? A: Yes, game updates can buff or nerf drills, shifting the rankings. We update this tier list after every major patch to ensure our rankings reflect the current meta.
Q: How do inventory caps affect drill choice? A: Inventory caps heavily penalize fast-digging, low-value drills like the Turbo Digger during offline play. If your inventory fills up, your drills stop earning. Always match your drill's dig speed to your inventory capacity and how often you can actively sell items.
Q: Is the Group Drill worth getting if I already have a Standard Borer? A: No, the Group Drill is outclassed by the Standard Borer in raw stats. However, it is completely free, so you should claim it immediately at the start of the game to skip the C-tier Starter Drill phase. Once you have Standard Borers, you can sell or store your Group Drill.
Q: What happens to my drills when I log off? A: They continue to operate based on their Dig Speed and stats, accumulating items in your inventory. However, the moment your inventory reaches its cap, all drills on your plot cease production until you log back in and sell your items.