Below is an in-depth guide for the Forge. Except for the very last part all those numbers got confirmed at least once. I had to review my old guide and update it because there were some minor faults inside. The contest right now was the opportunity to get it done.
Experience and gold is for the respective level to reach. It's not additive, it's separate for each level.
- Level 1 = 20 stat cap
Level 2 (20 exp + 5k gold) = Item stats cap raised to 40
Level 3 (40 exp + 25k gold) = Basic Forging expense reduced by 10%
Level 4 (70 exp + 30k gold) = Unlocked Specialist Level Forge
Level 5 (100 exp + 50k gold) = Item stats cap raised to 60
Level 6 (150 exp + 70k gold) = Specialist Forging expense reduced by 10%
Level 7 (200 exp + 120k gold) = Unlocked Master Level Forge
Level 8 (300 exp + 180k gold)= Item stats cap raised to 80
Level 9 (400 exp + 250k gold) = Master Forging expense reduced by 10%
Level 10 (600 exp + 320k gold) = Unlocked Guru Level Forge
Level 11 (800 exp + 500k gold) = Item stats cap raised to 100
Level 12 (1000 exp + 800k gold) = Guru Forging expense reduced by 10%
Level 13 (1300 exp + 1 million gold) = Unlocked Legendary Level Forge
Level 14 (1600 exp + 1,5 million gold) = Item stats cap raised to 120
Level 15 (1900 exp + 2,5 million gold) = Legendary Forging expense reduced by 10%
Level 16 (2300 exp + 3,5 million gold) = Unlocked Mystical Level Forge
Level 17 (2700 exp + 5,5 million gold) = Item stats cap raised to 140
Level 18 (3100 exp + 7,5 million gold) = Mystical Forging expense reduced by 10%
Level 19 (3600 exp + 9,5 million gold) = Unlocked Glorious Level Forge
Level 20 (4100 exp + 11,5 million gold) = Item stats cap raised to 170
Level 21 (4600 exp + 13,5 million gold) = Glorious Forging expense reduced by 10%
Level 22 (5200 exp + 15,5 million gold) = Unlocked Ultimate Level Forge
Level 23 (5800 exp + 17,5 million gold) = Item stats cap raised to 200
Level 24 (6400 exp + 19,5 million gold) = Ultimate Forging expense reduced by 10%
At level 24 the forge is capped out and can't be leveled further - though you can still pump 7100 experience in it.
Overhead for all upgrades is 110,505 million gold and 46,280 experience. So you would have to pay a maximum of 943,665 million gold. This number is reduced with every "Free Forge" you are using every 22 hours. If you plan to cap the forge out on level 24 you have to pay an additional maximum of 127,800 million gold.
So the all-time high is 1,071,465,000 gold!
Below is a list of all 8 forge types, the amount of experience they provide, the cost and the maximum possible stat gain:
- Basic Forge = 1 experience = 20k/18k gold, max +2/2/2
Specialist Forge = 4 experience = 20/18 diamonds, max +3/3/3
Master Forge = 15 experience = 50/45 diamonds, max +4/4/4
Guru Forge = 40 experience = 100/90 diamonds, max +5/5/5
Legendary Forge = 75 experience = 150/135 diamonds, max +6/6/6
Mystic Forge = 120 experience = 200/180 diamonds, max +7/7/7
Glorious Forge = 200 experience = 250/225 diamonds, max +8/8/8
Ultimate Forge = 300 experience = 300/270 diamonds, max +9/9/9
You need a fixed amount of awakened heroes to pass a certain level.
- Forge level 8 = 2 heroes required
Forge level 11 = 3 heroes required
Forge level 14 = 4 heroes required
Forge level 17 = 5 heroes required
Forge level 20 = 6 heroes required
Forge level 23 = 7 heroes required
Certain forge types raise the stats to certain points with positive only, positive/negative equally and mostly negative.
- Gold = positive to 20, equally to 40, ranging from +2 to -(current stat - 20) above 20
Specialist Forge = positive to 40, equally to 60, ranging from +3 to -(current stat - 20) above 40
Master Forge = positive to 60, equally to 80, ranging from +4 to -(current stat - 20) above 60
Guru Forge = positive to 80, equally to 100, ranging from +5 to -(current stat - 20) above 80
Legendary Forge = positive to 100, equally to 120, ranging from +6 to -(current stat - 20) above 100
Mystic Forge = positive to 120, equally to 140, ranging from +7 to -(current stat - 20) above 120
Glorious Forge = positive to 140, equally to 160, ranging from +8 to -(current stat - 20) above 140
Ultimate Forge = positive to 160, equally to 180, ranging from +9 to -(current stat - 20) above 160


If there are errors, please comment below and help me to get everything corrected!
Credit and special thanks to Watchdog, Tapout, Glorfumble, Arp, my guild and many others for all those informations you feed me with!!!. Sorry if I don't name everyone here but the list would be endless![]()