Mergu's Cracked Forge Box Stats

Updated 2026-07-25 06:20 UTC ↻ Refresh ⬇ Export CSV

I have stopped collecting data on these since Grey Havens made these boxes bound. I think it is a terrible change for a multitude of reasons.
I am leaving this data up as a bit of a historical record, but note that the profitability section is not possible now.

This wasn't just money changing hands. Crystals, gear, heat amps, and weapon slots all deleted crowns from the economy. Boxes sold via auction house also lose 10% to the AH fee, but boxes sold via direct trade skip that cut, so the total is shown as a range. AH fees assume the box was sold for 17,500cr.

Crystal Purchases

562,500

Gear Purchases (3,490 pieces)

523,500

AH Fees (if sold via AH, 10% of 463 sales)

up to 810,250

30d Heat Amps (4 × 150,000)

600,000

Weapon Slots (6 × 7,500)

45,000

Total Removed From Economy

1,731,000 – 2,541,250

= 15,000  ·  = 10  ·  Gear piece = 150 (amortised over 5.7 avg forges to L10 = 26.5 /forge)

Net Profit / Forge

348

Net Profit / Item

2,230

Net Profit / Floor

9,393

Net Profit / Hour

112,544

	Per Forge	Per Item	Per Floor	Per Hour
Box Revenue	411	2,601	11,109	133,110
Crystal Cost	−37	−221	−1,000	−11,979
⚙️ Gear Cost (amort.)	−27	−150	−717	−8,586
Net Profit	348	2,230	9,393	112,544

Break-even box rate: 0.47%  ·  Actual: 3.05%  ▲ profitable

Per-Floor Breakdown

At level 8, max heat gives a box chance (2.11%) but double-levels 62.6% of the time, skipping the high-value L9 roll. Min heat sacrifices the L8 box chance to guarantee landing on L9 (11.48% box rate). Shaded bands = 10th–90th percentile across 500 simulated sessions.

I run the first floor of mission 9-2 Terminal Meltdown. I find it better than Sewer Stash because it's stratum 6 so payouts are higher, weapon damage scales up so lichens die in the same number of hits, and there's a chance for Love Puppies to spawn and drop True Love Lockets. I typically run the same level gear on all accounts and skip most enemies on the lower gear levels.