Master Temper
+25% permanent production per rank.
Forge Idle
Merge equipment, automate ember production, complete contracts, and choose permanent reforge legacies.
Files are not uploaded to a server. Selected files and results are processed only inside your browser.
Embers80
Forge output4 / sec
Highest tier1
Reforges0
Living forge
Select two matching pieces to merge them. Every piece on the anvil produces embers automatically.
Reforge legacy
After reaching tier 7 and producing 12,000 embers in this forge, reset the board and choose one permanent legacy.
Scrap Insight
8% cheaper new gear per rank, up to 40%.
Long Echo
+1 hour offline progress per rank, up to 12 hours.
Milestones
+5% Forge output1Reach tier 4Locked
2Complete 10 mergesLocked
3Reach tier 7Locked
4Complete 50 mergesLocked
5Reforge onceLocked
6Reach tier 10Locked
7Reforge three timesLocked
Local save
The forge, quests, milestones, and legacy upgrades are saved only in this browser. Export a backup before clearing site data or changing devices.
- Forge output
- 4 / sec
- Overdrive
- x2.5
- Welcome back
- 4 hr
How Forge Idle works
Forge Idle is an original browser progression game that combines equipment merging, automatic production, short active boosts, repeatable contracts, milestone bonuses, and permanent reforge choices.
Build a productive board
- Every piece on the twelve anvils produces embers each second. Select two pieces of the same tier to merge them into one stronger piece and free a slot.
- New gear becomes more expensive within a forge, so merging early and recycling an unwanted selected piece are both useful ways to keep space available.
Active heat and idle progress
- Striking the forge immediately earns part of the current output and fills Heat. A full meter starts 15 seconds of 2.5x Overdrive without requiring endless clicking.
- When the page is away, production is calculated from the last saved time. The base cap is four hours, and the Long Echo legacy can extend it to twelve hours.
Contracts, milestones, and reforge choices
- Merge, forging, and production contracts repeat at increasing targets. Seven milestones add small permanent production bonuses as the collection grows.
- After tier 7 and 12,000 run embers, reforging resets the current board. Choose permanent production, cheaper new gear, or a longer offline cap; the three paths support different play styles.
Forge progress stays in this browserForge Idle does not upload play data. The board, contracts, milestones, timestamps, and reforge upgrades use localStorage, while the optional arcade JSON backup is created and restored on the device.
Forge Idle questions
Merging, offline progress, reforge choices, and local saves.
Why can two pieces not merge?
Both selected pieces must have the same tier. Selecting a different tier moves the selection, and tier 12 is the maximum.
How is offline production calculated?
The game multiplies the saved base production rate by elapsed time, up to the current cap. Temporary Overdrive does not continue while away.
What does reforging keep?
The board, current embers, and current forge costs reset. Lifetime totals, milestones, contract progress, reforge count, and the selected permanent legacy remain.
Can I move progress to another device?
There is no cloud account. Export the shared arcade JSON backup on the old device and import it in a browser on the new device.
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