Giants' Foundry

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Giants' Foundry
Giants' Foundry.png
Released 8 June 2022 (Update)
Type Minigame
Members Yes
Location Giants' Plateau
Skills Smithing
Music The Foundry

Giants' Foundry is a Smithing minigame in which players are tasked with creating giant weapons for Kovac. To participate in the minigame, players must complete the Sleeping Giants quest.

The minigame was first pitched in a blog on 19 April 2022 and subsequently polled with 90.3% of the votes in favour of its addition. It was released on 8 June 2022.

Required items[edit | edit source]

To participate in The Giants' Foundry you will require the following items:

  • Metal bars or equipment that can be forged from metal bars. (armour and weapons bronze to rune.)
  • A way to restore Energy (not required but highly recommended.)
  • A bucket (Can be obtained at The Giants' Foundry)
  • Ice gloves (Optional, can be used instead of a bucket)

Getting there[edit | edit source]

The Giants' Foundry is located in a cave beneath the Giants' Plateau. Players can get there by using:

Gameplay[edit | edit source]

See a more visual representation of Giants' Foundry gameplay here, from a Q&A with Mod Oasis.

In the minigame, players are tasked by Kovac to create weapons for other giants, using the machinery around the foundry.

Setup[edit | edit source]

The Mould Library interface.

Players must pick up a commission from Kovac, set the mould, fill the crucible, and pour the desired liquid metal. A bank chest is freely available near the crucible.

The crucible can only be filled with metal bars or metal items that can be produced using the Smithing skill, and that have a cost of at least 2 bars. This specifically excludes items such as black/white equipment, dragon equipment, as well as trimmed armour sets, among others, as they cannot be made using this skill.

Commissions define the kind of blade players will be making based on two descriptive words. For example, Kovac will instruct the player to make a sword that is "narrow" and "spiked". Players will need to keep that description in mind when choosing a mould from Kovac's Mould Library for the best matching one. The closer the match, the higher quality the sword will be when players start forging. Note that the points gained here won't affect how difficult it is to make the sword; that is instead determined by the type of metal players choose.

With the mould set, players must move on to the crucible (the big stone vessel chained above the lava), which stores the molten metal bars that are heated up in the forging process. The crucible will accept up to 28 standard metal bars (the amount required to smith a giant's sword), as well as metal weapons and armour, though the weapons and armour will be worth one less bar than it takes to make them. Attempting to insert items worth more bars than the crucible has space for will warn the player that any excess metal will be destroyed. The crucible can be emptied if incorrect items are inserted, but this will destroy all metal inside.

Once the crucible has been filled, the molten metal can be poured into the mould. A crucible cannot be poured if another preform has already been poured and not yet handed in.

The higher the tier of metal that is chosen, the more steps it will take to forge the sword, and temperature will have to be regulated more strictly. Swords made of an alloy (a mixture of two or more different metals) yield better results. Commissions cannot be cancelled; the player must either finish forging the preform, or ruin it, then hand it to Kovac.

Refinement[edit | edit source]

The Refinement HUD.

The refinement process involves shaping the raw preform into a giant's sword.

Players have a variety of tools at their disposal:

  • Trip hammer: Requiring a hot sword, this tool is used to hammer out the imperfections on the blade. Every 5th tick, the sword gains 2% progress and cools down by 2.5%.
  • Grindstone: Swords must be at a Medium Temperature to allow this tool to grind out the edge of the sword and make it smooth. Every 2nd tick, the sword gains 1% progress and heats up by 1.5%.
  • Polishing wheel: Cool the sword to a Cold Temperature to use this tool, which cleans up the blade and gives it a lovely shiny finish. Every 2nd tick, the sword gains 1% progress and cools down by 1.7%.
  • Lava pool - Dip your sword into the lava to heat it up, ensuring it's hot enough to use certain tools. There are two right-click options:
    • Heat-preform - This starts heating the preform at a slow rate that increases over time, until interrupted.
    • Dunk-preform - This starts heating the preform at a fast rate that increases over time, until interrupted.
  • Waterfall - Use the crashing waves of the waterfall to cool your sword down in order to use certain tools. There are two right-click options:
    • Cool-preform - This starts cooling the preform at a slow rate that increases over time, until interrupted.
    • Quench-preform - This starts cooling the preform at a fast rate that increases over time, until interrupted.
  • Preform Storage - Place the preform in this handy storage area whenever you need to interrupt refinement for any reason. This shall maintain the progress and heat on the same level from the moment it is placed, until it is picked up again. The player may leave the Foundry and come back anytime. When returning or logging in, a chat message will appear: "You notice your current commission is being kept warm in the preform storage."

Use the right tool at the right temperature to increase the sword's completion to 100%. For each successful use of a machine (not the waterfall or the lava pool), a small amount of Smithing experience is awarded. Players can track which tool to use at which heat range using the in-game HUD. When an indicator arrow actually lies within a certain range of temperature or progress, that block of temp/progress gains a white border, aiding with cases where the indicator may be right at the edge of a range or in between steps.

Using tools changes the temperature of the preform, which will also naturally cool down over time. Using the incorrect tool, or using the right tool outside the correct temperature range, will damage the sword and reduce its quality. If the quality of the sword reaches 0, players will have to hand it over to Kovac and try again. Quality cannot be regained or increased.

Sweet Spot - Occasionally, the entire refinement HUD will gain a thick yellow/gold border, indicating a window for a sweet spot, which is open for approx. 6 seconds (10 ticks). They appear only while a player is working a machine, immediately after the machine ticks. During this time, clicking the machine again once will change the border to green, which results in a large amount of progress gain (around 5%) upon the machine's next tick. However, the required tool and temperature as displayed on the HUD still must be observed and ignoring this will result in damage to the preform instead. The sweet spot may frequently push progress into the next section and require a new tool, so the player should be ready to click away from the machine before the machine ticks again. Clicking the machine repeatedly off this bonus window will cause the next action to be skipped and will not damage the preform.

These progress bonuses will only be offered a certain number of times per sword (6 and 7 section swords get three sweet spots, otherwise there are two). Missing a sweet spot wastes it; it still counts towards the limit. Most commonly, they appear once per section, relatively evenly distributed along the refinement progress, but this is not a firm rule - they may appear less evenly.

More information about refinement technique can be found in the minigames' strategy guide.

Handing in[edit | edit source]

Audio options icon.png
Commission complete!
The jingle that plays upon handing the sword to Kovac.

If players manage to reach 100% completion without ruining the sword, they can hand it to Kovac, who'll reward players with a lump sum of Smithing experience, coins, and foundry reputation. The player's run energy is also restored by 50%. The higher the quality of the sword, the greater the rewards they receive. The gold reward is deposited directly into player's bank and the player receives a chat message noting such, in addition to the total amount of swords produced thus far. Ultimate Ironmen will get the gold reward in their inventory.

The player is shown the sword's final quality and the time taken to complete the sword, which begins the moment they are assigned a commission and is stopped with the hand-in, but using preform storage does not pause this time. The current personal best (PB) result is also displayed: PB is determined by the highest quality achieved, time is only taken into account when a sword of equal quality is handed in, in which case shorter is better.

The player may ask to be issued a new commission immediately, in which case the entire gameplay loop (and the sword timer) starts anew.

Sword quality[edit | edit source]

The quality of a sword determines how much experience and coins it rewards, and also the difficulty of making the sword. The initial quality of the sword is equal to the metal score plus the mould score, and can be as low as 10 (all bronze bars, no matching mould) and as high as 199 (equal parts adamant and runite, +69 mould). 10 quality points are lost whenever you damage the sword by using the wrong tool or at the wrong temperature.

Metal score[edit | edit source]

Sword quality is primarily determined by the quality of metal used. While higher tier metals give more points than lower tier metals, the best way to gain points is to combine multiple types of metal in the crucible, making an alloy. For example, an entirely rune sword has a base value of 60, but a sword made of equal parts adamant and rune has over double the base value, at 130. Adding bars to the crucible requires the same level as smelting that type of ore in a furnace. Players can use temporary boosts to add higher tier bars to the crucible.

The formula for an approximate alloy's value is:

Here, is equal to 1 for bronze, 2 for iron, and so on up to 6 for rune. is the number of bars (or equivalent) of that metal present in the alloy. Alloys with more than two metals present (e.g. a mixture of steel, mithril, and adamant) negatively impact metal score as the metal of lowest amount is disregarded, making its de-facto bar slots contribute nothing to the score. In the equation above only the two most abundant metals are used as and . Ties prefer the more valuable metal. If a pure metal is used, then that metal is used as and a value of is used for .

Lovakite and elemental equipment or bars cannot be used.

The following table displays some example scores. Alloys are particularly chosen so that their score is the highest possible for a given difficulty, which may be useful for some players starting out with the minigame. The most optimal alloys are available in the strategy guide.

Alloy Level Score Difficulty
All Bronze Smithing 15 10 Lowest
All Iron Smithing 15 20 Low
All Steel Smithing 30 30 Low
All Mithril Smithing 50 40 Low
All Adamant Smithing 70 50 Low
All Rune Smithing 85 60 Medium
19 Steel / 9 Mithril Smithing 50 59 Low
18 Mithril / 10 Adamant Smithing 70 89 Medium
19 Adamant / 9 Rune Smithing 85 118 High
14 Adamant / 14 Rune Smithing 85 130 Highest

Note: these are examples of alloys, for optimal alloys, visit the strategy guide.

Recycling equipment[edit | edit source]

Players may also break down metal weapons and armour that can be created through the Smithing skill that use at least two bars to create, which provides an amount equal to one fewer bar than used to create the item.

Difficulty[edit | edit source]

The higher the metal score of the sword, the harder it is to make. This manifests in the number of distinct hammer/grind/polish sections to be completed:

Alloy tier Metal score Sections
Lowest 10-19 3
Low 20-59 4
Medium 60-89 5
High 90-119 6
Highest 120-130 7

Additionally, the size of the temperature bars decreases as the metal score increases, scaling linearly down to half of the full size at 130 points. It may be worthwhile to purposefully lower the metal score to obtain swords of lower difficulty to learn playing the minigame.

Mould score[edit | edit source]

The mould score is the sum of the bonuses for the two styles in your commission. The very best possible mould score is 69 points on a Light Flat commission, using optimal moulds. With only default moulds, the best possible score is 46 points on a Narrow Heavy commission. Other commissions have best possible scores in the high 50s to 60s. The very worst commission is Broad Light at 24 (default moulds) or 49 (optimal moulds) points.

The mould score does not affect the difficulty of the sword in any way. It is recommended to always use the best available moulds and to unlock the optimal ones as soon as possible.

Moulds[edit | edit source]

Default moulds[edit | edit source]

The following table contains a list of all Giants' Foundry mould pieces that are unlocked by default:

Mould name Mould type Style Optimal
Broad Narrow Heavy Light Spiked Flat
Chopper Forte Forte 4 0 0 4 0 4 0
Gladius Ricasso Forte 4 0 4 0 0 4 0
Disarming Forte Forte 0 4 0 4 4 0 0
Medusa Ricasso Forte 8 0 6 0 0 8 0
Serpent Ricasso Forte 0 6 0 8 0 8 0
Serrated Forte Forte 0 8 8 0 6 0 1
Saw Blade Blade 4 0 0 4 4 0 0
Defenders Edge Blade 4 0 4 0 4 0 0
Fish Blade Blade 0 4 0 4 0 4 0
Medusa Blade Blade 8 0 8 0 0 6 0
Stiletto Blade Blade 0 8 0 6 0 8 0
Gladius Edge Blade 0 6 8 0 0 8 0
People Poker Point Tip 0 4 4 0 0 4 0
Chopper Tip Tip 4 0 0 4 4 0 0
Medusa's Head Tip 4 0 4 0 4 0 0
Serpent's Fang Tip 0 8 0 6 8 0 0
Gladius Point Tip 0 8 8 0 0 6 0
Saw Tip Tip 6 0 8 0 8 0 1

Purchasable moulds[edit | edit source]

The table below lists all of the purchasable moulds and their requirements. Purchasing all of them costs a total of 5400 foundry reputation points. You may boost to buy and use moulds that you do not have the level for, but you will NOT be able to use them if your level drops below the requirement before pouring the melted metal into the mould. Once poured, you can finish off the preform, even if your level drops below the requirement for the moulds used in making the preform.

Level Mould name Mould type Cost (Rep) Style Optimal
Broad Narrow Heavy Light Spiked Flat
Smithing 50 Stiletto Forte Forte 300 0 8 0 10 0 8 2
Smithing 51 Defender Base Forte 300 8 0 10 0 0 8 1 + 1 tied[1]
Smithing 61 Juggernaut Forte Forte 350 4 0 4 0 16 0 0
Smithing 70 Chopper Forte +1 Forte 400 3 0 0 4 0 18 3 + 1 tied[1]
Smithing 79 Spiker! Forte 450 0 1 2 0 22 0 4
Smithing 48 Flamberge Blade Blade 300 0 8 0 8 10 0 1
Smithing 50 Serpent Blade Blade 300 0 10 0 8 0 8 1
Smithing 59 Claymore Blade Blade 350 16 0 4 0 0 4 2
Smithing 71 Fleur de Blade Blade 400 4 0 18 0 1 0 4
Smithing 80 Choppa! Blade 450 1 0 0 22 0 2 4
Smithing 49 Corrupted Point Tip 300 0 8 0 10 8 0 0
Smithing 52 Defenders Tip Tip 300 10 0 8 0 8 0 2 + 1 tied[2]
Smithing 60 Serrated Tip Tip 350 0 4 0 16 4 0 2
Smithing 69 Needle Point Tip 400 0 18 0 3 0 4 3 + 1 tied[3]
Smithing 81 The Point! Tip 450 2 0 0 1 0 22 3 + 1 tied[3]
  1. ^ 1.0 1.1 Chopper Forte +1 and Defender Base are tied for optimal for a Heavy Flat commission.
  2. ^ Defenders Tip is tied for optimal with the default Saw Tip on a Heavy Spiked commission.
  3. ^ 3.0 3.1 Needle Point and The Point! are tied for optimal for a Narrow Flat commission.

Best mould combinations[edit | edit source]

The following table contains a list of the best mould combinations for various objectives. It assumes you want to maximise the sum of both objectives. If the player already meets the level requirement to use all of the purchasable moulds, then there is no need to purchase the Juggernaut Forte and the Corrupted Point moulds from the shop, as they are never optimal. The Juggernaut Forte mould becomes obsolete at level 79, and the Corrupted Point mould at level 60.

Default Moulds[edit | edit source]

Commission Forte Blade Tip Score
Broad Heavy Medusa Ricasso Medusa Blade Saw Tip 44 (22+22)
Broad Light Medusa Ricasso/Chopper Forte Medusa Blade/Saw Blade Chopper Tip 24 (20+4)
Broad Spiked Medusa Ricasso Medusa Blade/Saw Blade/Defender's Edge Saw Tip 30 (22+8)
Broad Flat Medusa Ricasso Medusa Blade Saw Tip/Gladius Point 36 (22+14)
Narrow Heavy Serrated Forte Gladius Edge Gladius Point 46 (22+24)
Narrow Light Serpent Ricasso Stiletto Blade Serpent's Fang 42 (22+20)
Narrow Spiked Serrated Forte Stiletto Blade Serpent's Fang 38 (24+14)
Narrow Flat Serpent Ricasso Stiletto Blade Gladius Point 44 (22+22)
Heavy Spiked Serrated Forte Gladius Edge/Medusa Blade/Defender's Edge Saw Tip 38 (24+14)
Heavy Flat Medusa Ricasso Gladius Edge Gladius Point 44 (22+22)
Light Spiked Serpent Ricasso/Disarming Forte Saw Blade Serpent's Fang 30 (18+12)
Light Flat Serpent Ricasso Stiletto Blade Gladius Point 36 (14+22)

The average mould score using the optimal default moulds is 38.

All Moulds[edit | edit source]

Default moulds are highlighted in bold.

Level[n 1] Commission Forte Blade Tip Score
Smithing 71 Broad Heavy Defender Base Fleur de Blade Defenders Tip 58 (22+36)
Smithing 80 Broad Light Stiletto Forte Choppa! Serrated Tip 49 (01+48)
Smithing 79 Broad Spiked Spiker! Claymore Blade Defenders Tip 56 (26+30)
Smithing 81 Broad Flat Chopper Forte +1 Claymore Blade The Point! 65 (21+44)
Smithing 71 Narrow Heavy Serrated Forte Fleur de Blade Needle Point 52 (26+26)
Smithing 80 Narrow Light Stiletto Forte Choppa! Needle Point 61 (26+35)
Smithing 79 Narrow Spiked Spiker! Flamberge Blade Needle Point 59 (27+32)
Smithing 70 Narrow Flat Chopper Forte +1 Serpent Blade Needle Point / The Point! 58 (28+30)
Smithing 79 Heavy Spiked Spiker! Fleur de Blade Saw Tip / Defenders Tip 59 (28+31)
Smithing 81 Heavy Flat Defender Base / Chopper Forte +1 Fleur de Blade The Point! 58 (28+30)
Smithing 80 Light Spiked Spiker! Choppa! Serrated Tip 64 (38+26)
Smithing 81 Light Flat Chopper Forte +1 Choppa! The Point! 69 (27+42)
  1. ^ Minimum level to purchase and use all moulds optimal for this commission.

The average mould score using optimal purchased moulds is 58.25.

Experience[edit | edit source]

The player will be gaining small amounts of Smithing experience throughout the refinement process:

  • 3.3 experience for successfully using the polishing wheel
  • 3.2 experience for successfully using the grindstone
  • 4.5 experience for successfully using the trip hammer

Catching a sweet spot doubles the experience gain of the next use.

Most of the experience, however, is gained from handing in a sword as you finish the minigame. This experience dump is based solely on a sword's quality , where = mould score + metal score - mistakes.

The amount of Smithing experience gained for turning in a sword with quality is

Which ranges from 30 experience for turning in a sword of 0 quality, up to 25,230 experience for a sword with the maximum quality of 199.

template=Calculator:Giants Foundry experience calculator/Template
param = quality|Quality of sword|0|int|0-199
autosubmit = disabled
Please input the data and submit the form.

More detailed earning rates for experience and gold are available in the strategy guide.

Jagex calculations[edit | edit source]

Jagex provided the following comparison tables in the patch notes on release:

Alloy tier comparison
Alloy tier Swords per hour Average XP per sword Average XP per hour Average GP/XP Profitable
Lowest 20 ~2,400 ~48,000 −0.2 No
Low 17 ~5,000 ~85,000 0.3 Yes
Medium 15 ~9,000 ~135,000 0.2 Yes
High 13 ~15,000 ~195,000 −0.5 No
Highest 12 ~23,000 ~276,000 −6.6 No
Training method comparison
Method XP per hour (Estimate) Average GP/XP Profitable
Gold at Blast Furnace - no goldsmith gauntlets ~150,000 −8.7 No
Gold at Blast Furnace - with goldsmith gauntlets ~375,000 −3.5 No
Steel at Blast Furnace - with coal bag ~90,000 12.3 Yes
Creating 5 bar mithril items ~190,000 - 210,000 −3.7 No
Creating 5 bar adamant items ~240,000 - 260,000 −1.3 No
Creating 3 bar rune items ~290,000 - 310,000 0.8 Yes

Rewards[edit | edit source]

Players can gain Foundry Reputation by completing commissions. Reputation is awarded equal to the final quality for the sword, calculated by adding the metal and mould scores and subtracting 5 for each mistake. It can be spent on additional moulds for each preform section, allowing for a higher base mould score at the beginning of forging, or in the Reward Shop.

In addition, a gold reward based on the quality of the sword is also received. The gold reward is calculated as double the experience reward. Because of this, it is possible for forging swords to be profitable, especially using steel bars or a 14/14 steel and mithril blend, assuming no mistakes and optimal moulds are used.

Giants Foundry Item Rewards
Item Foundry Reputation
Double ammo mould inventory image Double ammo mould[n 1] 2,000
Kovac's grog inventory image Kovac's grog 300
Smithing catalyst inventory image Smithing catalyst 15
Ore pack (Giants' Foundry) inventory image Ore pack 200
Smiths tunic inventory image Smiths tunic 4,000
Smiths trousers inventory image Smiths trousers 4,000
Smiths boots inventory image Smiths boots 3,500
Smiths gloves inventory image Smiths gloves[n 2] 3,500
Colossal blade inventory image Colossal blade 5,000
  1. ^ Can only be purchased if the player has completed the Dwarf Cannon quest.
  2. ^ Can be used on a pair of ice gloves to create smiths gloves (i), which combine the effects of both.

Changes[edit | edit source]

Date Changes
8 February 2023
(update | poll)

Kovac will now buy back all items from the Giants' Foundry Reward Shop, besides the Colossal blade and Kovac's grog, for 80% of their purchase price.

13 July 2022
  • The reward shop is now protected by the Bank PIN.
  • Coins rewarded from commissions can now take the slot of a coin placeholder, if there is one.
29 June 2022
  • Coins rewarded from commissions are now sent straight to the bank.
  • Kovac now displays the total number of swords made in chat on every sword handed in.
  • Progress bonus windows are now more evenly distributed.
15 June 2022
  • The mould setup interface will now display the best moulds first.
  • Removed Kovac's confirmation dialogue when asking for a commission in order to make back-to-back commissions feel a bit smoother.
  • Changed animations so that players are now able to move while examining a finished sword prior to hand-in.
  • Using the "X" option when adding armour or weapons to the Giants' Foundry crucible will now remember the last number input as a new option next time the dialogue is opened, so players can keep adding the same amount to the crucible.
  • The scroll position reset issue has been fixed so players will no longer see any dead space in the mould jig.
  • Players will now actually face the mould jig when they use it.
8–15 June 2022
  • Players will no longer erroneously lose quality when clicking the Drop Hammer at a specific time.
  • Using items on the Polishing Wheel to repair it no longer fixes the Drop Hammer.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The Trip hammer as depicted in the concept art and the in-game model would not actually function mechanically because the cam wheel is on the wrong side of the lever.
  • Giants' Foundry's status as a "minigame" was in contention during development, resulting in the outcome where it is now the only activity that has a collection log in the Minigames tab but no Minigames red star on the world map.

Developers[edit | edit source]