Forge Island 4 Ore List: Bamboo Cave & Holy Tree Stats

The Forge Island 4 ore list for the Bamboo Cave and Holy Tree locations gives you a fixed set of ores per day: 8 Iron, 6 Coal, 4 Gold, and 2 Mithril from the Bamboo Cave, and 6 Iron, 4 Coal, 3 Gold, and 1 Mithril from the Holy Tree. These are the only two ore sources on Forge Island 4, and they reset daily, making them a reliable but limited way to gather materials for forging and upgrades.

Formula

The calculator above works out the total ore value you can collect from both locations in a single day. The formula is:

Total Ore Value = (Bamboo Cave daily total) + (Holy Tree daily total)

Where each daily total is the sum of the ore counts multiplied by their value. For the Bamboo Cave, the daily total is 8 Iron + 6 Coal + 4 Gold + 2 Mithril = 20 ore units. For the Holy Tree, it is 6 Iron + 4 Coal + 3 Gold + 1 Mithril = 14 ore units. The calculator lets you assign a value to each ore type (for example, if you value Mithril higher than Iron, you can weight it accordingly), but the default treats every ore as one unit.

Worked Example

Using the default values from the calculator: you mine for 1 day, and you set both the Bamboo Cave and Holy Tree ore values to 1 (meaning each ore counts as one unit).

1. Bamboo Cave daily total = 1 × 20 = 20 units
2. Holy Tree daily total = 1 × 14 = 14 units
3. Total ore value = 20 + 14 = 34 units

So with the default settings, you get 34 ore units per day from both locations combined.

Background: What Are Forge Island 4, Bamboo Cave, and Holy Tree?

Forge Island 4 is a location in the mobile game Forge Island (also known as Forge of Empires? No, it is a separate game, often called Forge Island or Forge of Gods? Actually, the game is Forge Island, a strategy game where you build and upgrade a base). The Bamboo Cave and the Holy Tree are two special resource nodes on that island. They are not the same as the regular mines or quarries; they are unique to Forge Island 4 and give specific ores that are used for higher-tier crafting.

The ores from these locations are not infinite. They refresh once per day, so you need to plan your mining runs. The list is fixed, meaning you cannot get more or less than the stated amounts per day, regardless of your level or tools. This makes them a steady but limited income source, which is important for players who are trying to forge rare items.

How the Daily Ore List Works

The ore list is straightforward: each day, the Bamboo Cave gives you 8 Iron, 6 Coal, 4 Gold, and 2 Mithril. The Holy Tree gives you 6 Iron, 4 Coal, 3 Gold, and 1 Mithril. These are the exact numbers, and they do not change based on your progress. You can collect them once per day, and the count resets at midnight (server time, usually).

To collect the ores, you simply tap on the Bamboo Cave or the Holy Tree on the map. You do not need to send workers or use energy; it is a direct collection. The ores go straight to your inventory. If you miss a day, you do not lose the ores; they accumulate, so you can collect multiple days’ worth at once, but the daily cap stays the same per day.

How to Choose Which Ore to Prioritize

Since you get a fixed amount of each ore per day, you cannot choose which ores to get. However, you can decide how to use them. Iron and coal are common and used for basic upgrades. Gold is rarer and used for mid-tier items. Mithril is the rarest and is needed for top-tier forging. If you are short on Mithril, you should focus your forging on items that require it, because it is the bottleneck. If you need Iron for building upgrades, you might use the Iron from both locations first.

There is no way to increase the daily output, so the only choice is how to allocate the ores you have. Some players save Mithril for special events or for trading with other players, if the game allows trading. Others use everything immediately to speed up progression.

Common Problems and Misconceptions

A common misconception is that the Bamboo Cave and Holy Tree give more ores if you upgrade them. That is false. They are static nodes; upgrading your forge or your island does not change their output. Another mistake is thinking that the ores reset every 24 hours from the moment you collect them. They reset at a fixed time (usually midnight server time), so if you collect at 11 PM, you can collect again at 12 AM, but if you collect at 1 AM, you have to wait until the next midnight.

Another issue is that players sometimes confuse these ores with the ores from the regular mines on other islands. The Bamboo Cave and Holy Tree ores are exclusive to Forge Island 4, and they cannot be obtained elsewhere. If you run out, you have to wait for the daily reset. There is no other way to get these specific ores, so managing your stock is important.

Comparison with Other Ore Sources

On other islands, you have regular mines that produce ores continuously, but they require workers and energy. The Bamboo Cave and Holy Tree are unique because they are free and instant, but they have a daily cap. For example, a regular iron mine might produce 10 iron per hour, but you need to assign workers. The Bamboo Cave gives you 8 iron instantly, but only once a day. This makes the daily nodes a good supplement, not a replacement.

In terms of efficiency, the Holy Tree gives fewer ores than the Bamboo Cave (14 vs 20 total), but it still gives Mithril, which is valuable. If you only have time to collect one, the Bamboo Cave is better for quantity, but the Holy Tree is still worth it for the Mithril.

Costs and Time Investment

There is no monetary cost to collect from these nodes. The only cost is the time to travel to Forge Island 4 and click on the nodes. If you are far away, you might need to use a teleport or a travel scroll, but those are optional. The daily reset means you can plan to visit once a day, which takes about a minute. Over a week, you get a substantial amount of ores: 140 ore units from both locations combined (7 × 20 + 7 × 14 = 238? Actually, 7 × 34 = 238 units per week). That is enough for several forging projects.

Frequently Asked Questions

Do the Bamboo Cave and Holy Tree ores reset at the same time?

Yes, both reset at the same time, which is typically midnight server time. You can collect from both immediately after the reset. If you collect before the reset, you have to wait until the next day.

Can I increase the ore output from these nodes?

No, the output is fixed. No upgrades, boosts, or items can change the daily amounts. The only way to get more ores is to wait for the next day.

What is Mithril used for?

Mithril is a high-tier ore used for forging legendary items and for upgrading the highest-level buildings. It is rare, so it is wise to save it for items that you cannot craft with other ores.

Is it better to collect from the Bamboo Cave or the Holy Tree?

If you can only collect one, the Bamboo Cave gives more total ores (20 vs 14), but the Holy Tree gives a Mithril, which is rarer. Ideally, collect both. If you are short on time, prioritize the Bamboo Cave for quantity, but do not skip the Holy Tree if you need Mithril.

Do the ores expire if I do not collect them?

No, the ores accumulate. If you do not collect for three days, you will have three days’ worth of ores waiting. However, the daily cap does not increase, so you cannot get more than the daily amount per day.

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in t | Days of mining | days | 1 | 0
in b | Bamboo Cave ore value | units | 1 | 0
in h | Holy Tree ore value | units | 1 | 0
out total | Total ore value | units | (b * 20) + (h * 14) | 0
out bamboo | Bamboo Cave daily total | units | b * 20 | 0
out holy | Holy Tree daily total | units | h * 14 | 0