This builder primarily focuses on his hunter, a Mech Warrior. The Mech warrior however only functions(walk, attack, …) if the main builder is in it controlling it(transport like radio). Otherwise the Mech Warrior is inactive. The Crafter extracs fire essence from the gold mound and uses these essences to craft items for his Mech to improve armor/firepower.
Starts with 0/150 food supply.
Builder
Stats
Name: Crafter
Hit points: 300
Mana Points: 300
Armor: 5 Medium
Inventory slots: 6
Ability: Harvest lumber, Construct all buildings (human), Harvest Gold, Extract fire essence, Basic crafting(after research), Melt(after research)
Attack damage: 125-125 normal
space: 1x1
Escape ability:
Bright explosion
Blinds the titan with a bright explosion and renders him unable to move if he gets caught by it. 15s Windwalk + 1s stun if titan is in range(dunno about the range, 300?). 90s cd. Autocast where the builder is when activated, if titan is close enough he gets stunned, if not it's just a ww basically. The stun especially is useful if your Mech dies and you stand next to the titan without much protection.
Extract fire essence: The Crafter uses his knowledge to extract a fire essence out of the titan’s gold. 1 second casting time, 5 seconds cooldown. Creates a fire essence out of 5 gold. Fire essences do stack so they always take 1 inventory slot.

Crafts see at bottom.
Mech Warrior MKIII (Hunter)
Stats
Name: Mech Warrior MKIII
Hit points: 1200
Mana Points: 600
Armor: 5 fortified
Abilities:
- Overheat: +100% ms over 10s, 20 damage per second on self. Costs 125 Mana.
- Transform: The Mech Warrior rearranges himself to a compact form having 500hp, 5 fort. armor and no attack but fitting through 1x1 spaces. 5 seconds transform time, 30 seconds cd. Costs 200 Mana.
- Stun Rocket(after research): Stuns the target for 2 s. Costs 200 Mana.
- Steam Exhaust(after research): Blows out a lot of steam, enabling the Mech to hide in it. 3-5s ww depending on research lvl. Costs 100 Mana.
Attack damage: 175-175 chaos
Attack range: 600
No regeneration, has to be repaired by repair bots.
Cost: 1200 Wood, 12 Food
space:2x2
Repair Bot
Stats
Name: Repair Bot
Hit points: 200
Armor: 5 medium
Ability: Repairs the player's own MKIII (no other units/buildings)
Food Cost: 8
Cost: 300 Wood
space: 1x1
Wood FactoryExtracts wood from the nearby trees.

Stats
Name: Wood Factory
Hit points: 400
Food Cost: 65
Cost: 30 Wood
Armor: 0 fortified
Space 3x3
Ability: Gives 15 Wood each second. (no workers needed, the building produces wood)
Steel Factory
Stats
Name: Steel Factory
Hit points: 800
Armor: 0 fortified
Cost: 300 Wood
Space 4x4
Constructs the Mech Warrior MKIII and repair drones. Also provides basic researches.
Constructs:
- Mech Warrior MKIII.
- Repair bot
Abillity:
Forge: Forges a Fire Essence out of 7 of the crafters' collected gold.
Researches:
- Learn basic crafting recipes. Enables the Crafter to create the basic crafts.
- Repair bot efficiency. Reduces food cost of repair bots to 4, enabling you to build 2 of them at the same time.
- Glowing Steel. Gives Enhanced Steel walls 20dps immolation.
Mech Headquarters
Stats
Name: Mech Headquarters
Hit points: 500
Armor: 5 fortified
Cost: 25 Gold, 2000 Wood
space: 3x3
Provides advanced crafting researches and further upgrades for the Mech Warrior.
Wall: 
Stats
Name: Steel Wall
Hit points: 250
Armor: 5 fortified
Cost: 50 Wood
Space 2x2
Upgraded Wall:
Stats
Name: Enhanced steel wall
Hit points: 500
Armor: 15 fortified
Cost: 250 Wood
Space 2x2
Glowing steel wall
Stats
Name: Glowing steel wall
Hit points: 500
Armor: 15 fortified
Cost: 250 Wood
Abillity: 20dps immolation
Space 2x2
Needs research: Glowing steel, researched at Steel Factory
+ normal
Merchant with the usual summons.
Researches in Steel Factory:- Learn basic crafting recipes. Enables the Crafter to create the basic crafts.
These include:
- Armor Plate: Requires an armoured scales and a fire essence. Creates armor plate that increases the Mech’s armor by 3. Skill costs 100 Mana.
- Weapon Slot: Requires a trident and a fire essence. Installs another weapon slot for the Mech Warrior. Increase damage by 10. Skill costs 100 Mana.
- Shell enhancement: Requires a turtle scales and a fire essence. Enhances the Mech’s shell, granting him +100hp. Skill costs 100 Mana.
Costs: 5 Gold. 750 wood.
- Repair bot efficiency. Reduces food cost of repair bots to 4, enabling you to build 2 of them at the same time.
Costs: 5 Gold, 250 wood. Needs Mech Headquarters.
- Glowing Steel. Heats up the Crafter's enhanced steel walls to glowing steel walls, giving them a 20dps immolation.
Costs: 5 Gold, 1000 Wood
Researches in Mech Headquarters:Improved forge:Reduces Fire essence extraction cost to 5 gold(at Steel Factory).
Costs: 10 gold, 2000 lumber
- Melting technology: Allows the Crafter to melt crafted items into even more powerful ones
Level 1: Allows the Crafter to melt 3 armor plates into an iron armor plate, granting +12 armor and +500 hp.
Costs: 10 Gold, 1500 wood. Skill costs 150 Mana.
Level 2: Allows the Crafter to melt 3 Weapon Slots into a rocket launcher slot, adding +50 dmg.
Costs: 10 Gold, 2000 Wood. Skill costs 150 Mana.
- Advanced Metallurgy Training: 20 gold, 4000 lumber. Researched at Mech HQ. Requires: Melting tehcnology, lvl 2.
Gives the Crafter an additional 50 mana, and a 2 mana/sec regen. increase. Allows the creation of:
Adamantine Armor plating: Requires two Iron Armor platings and a Fire Essence.
Creates Adamantine Armor (+16 armor. 10% passive damage reduction (non stacking). +1000 hp.)
Integrated Repair Bot Module: Requires an Iron armor plating, two Shell enhancements, and a Fire essence.
Creates Integrated Repair Bot Module (+600 hp. gives 6 hp/sec. regen (stacks). +2 armor.)
Super Rocket Gun: Requires three Rocket launchers and a fire essence.
Creates Super Rocket Gun (+100 dmg. +10% AS/MS speed (non stacking). +150 attack range (non stacking).)
Ether Drive: Requires two shell enhancements, one armor plating, one Weapon slot, and a fire essence.
Creates Ether Drive (+20 dmg. +200 hp. 10% evasion (non stacking). +2 armor)
Blink Engine: Requires An Iron armor plating, a Shell enhancement, a TP staff (regular), and a fire essence.
Creates Blink Engine (+4 armor. Gives Machine Blink (800 range, 300 mana cost, 30 sec. cd). +200 hp.)
- Advanced Mechanics:Level 1: Grants a slight increase to the Mech’s movement speed and attack speed. Further allows him to use steam exhaust, giving him a 3 s ww.
Costs: 5 Gold, 500 Wood
Level 2: Grants a great increase to the Mech’s movement speed and attack speed. Enhances steam exhaust ww to 4 s.
Costs: 10 Gold, 1000 Wood
Level 3: Allows the Mech Warrior to fire a stun rocket at the titan. Also adds a final second to steam exhaust's ww time for a total of 5 s ww.
Costs: 15 Gold, 2500 Wood.
Not sure about the gold/wood costs but it shouldn't be too high since getting a fire essence prevents you from getting gold for 5 seconds.