Milestones

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Milestones are the primary method of progression in the game, allowing the engineer to unlock new buildings, recipes, equipment, and more. They can be completed at the HUB Terminal by inputting resources. Sets of milestones are grouped together into tiers, and all but tier 0 are locked to the engineer from the start of the game. Completing tier 0 unlocks tiers 1 and 2, and completing phases of the Space Elevator unlocks tiers after that.

Note: The below milestones are not necessary ordered as you will see in your session. The ordering of milestones within the same tier is dependent on the sequence of your M.A.M research.


Tier 0[edit | edit source]

Tier 0 focuses on upgrading the HUB. Unlike milestones in later tiers, these must be completed in sequential order. Each milestone upgrades the HUB's appearance as well.

Name Cost Time
(minutes)
Unlocks
Hub Upgrade 1

10 Iron Rod.png Iron Rod

0

HUB Feature: A Personal Storage Box.png Personal Storage Box and Biomass Burner.png Biomass Burner are added.
Buildings: Craft Bench.png Craft Bench, Equipment Workshop.png Equipment Workshop, Smelter.png Smelter, Power Line.png Power Line
Equipment: Portable Miner.png Portable Miner, Xeno-Zapper.png Xeno-Zapper
Recipes: Copper Ingot.png Copper Ingot, Wire.png Wire, Cable.png Cable
Scanner: Copper Ore.png Copper Ore

Hub Upgrade 2

10 Iron Plate.png Iron Plate
10 Iron Rod.png Iron Rod
50 Wire.png Wire

0

Character: +2 Inventory slots
Buildings: Constructor.png Constructor, Power Pole.png Power Pole
Recipes: Biomass.png Biomass (Leaves), Concrete.png Concrete, Screw.png Screw, Reinforced Iron Plate.png Reinforced Iron Plate
Scanner: Limestone.png Limestone

Hub Upgrade 3

75 Iron Plate.png Iron Plate
10 Cable.png Cable
10 Concrete.png Concrete
2 Reinforced Iron Plate.png Reinforced Iron Plate

0

Character: +1 Inventory slot
Buildings: Conveyor Pole.png Conveyor Pole, Conveyor Belt Mk.1.png Conveyor Belt, Foundation 8m x 4m.png Foundation 8m x 4m, Foundation 8m x 2m.png Foundation 8m x 2m, Ramp 8m x 4m.png Ramp 8m x 4m, Ramp 8m x 2m.png Ramp 8m x 2m, Wall (Plating).png Wall (Plating), Wall (Sheet Metal).png Wall (Sheet Metal)
Recipes: Biomass.png Biomass (Wood)

Hub Upgrade 4

100 Iron Plate.png Iron Plate
75 Iron Rod.png Iron Rod
20 Concrete.png Concrete
20 Cable.png Cable

0

HUB Feature: An additional Biomass Burner.png Biomass Burner is added.
Character: +1 Inventory slot
Buildings: Miner Mk.1.png Miner MK1, Storage Container.png Storage Container

Hub Upgrade 5

150 Iron Plate.png Iron Plate
150 Iron Rod.png Iron Rod
500 Wire.png Wire
30 Concrete.png Concrete

0

HUB Feature: A Molecular Analysis Machine (M.A.M.) and the Dropship are added. Milestone tiers 1 and 2 are unlocked.
Character: +1 Inventory slot, +1 Arm Equipment slot
Buildings: Biomass Burner.png Biomass Burner, Space Elevator.png Space Elevator
Equipment: Object Scanner.png Object Scanner, Beacon.png Beacon

Tier 1[edit | edit source]

Requires completing tier 0 to unlock.

Name Cost Time
(minutes)
Unlocks
Utility

150 Iron Plate.png Iron Plate
150 Iron Rod.png Iron Rod
500 Wire.png Wire

3

Buildings: Lookout Tower, Wall Door Center (Plating), Wall Door Left (Plating), Wall Door Right (Plating), Wall Door Center (Sheet Metal), Wall Door Left (Sheet Metal), Wall Door Right (Sheet Metal), Wall Gate
Recipes: Biofuel

Logistics

200 Iron Plate.png Iron Plate
200 Iron Rod.png Iron Rod
500 Wire.png Wire

3

Gameplay Mechanic: Productivity Display
Buildings: Conveyor Splitter, Conveyor Merger, Conveyor Lift

Personal Storage

100 Iron Plate.png Iron Plate
100 Iron Rod.png Iron Rod
250 Wire.png Wire

2

Character: +5 Inventory slots
Buildings: Personal Storage Box

Conveyor Walls

100 Iron Plate.png Iron Plate
100 Iron Rod.png Iron Rod
250 Wire.png Wire

2

Buildings: Wall Conveyor x3 (Plating), Wall Conveyor x2 (Plating), Wall Conveyor x1 (Plating), Wall Conveyor Perpendicular (Plating), Wall Conveyor x3 (Sheet Metal), Wall Conveyor x2 (Sheet Metal), Wall Conveyor x1 (Sheet Metal), Wall Conveyor Perpendicular (Sheet Metal), Stairs Left, Stairs Right

Fabric

M.A.M. Research: Mycelia (1)
50 Iron Plate.png Iron Plate
50 Iron Rod.png Iron Rod
100 Wire.png Wire

0

Recipes: Fabric, Biomass (Mycelia)

Overclock Production

M.A.M. Research: Green Power Slug
50 Iron Plate.png Iron Plate
50 Iron Rod.png Iron Rod
100 Wire.png Wire

2.5

Gameplay Mechanic: Overclock buildings
Recipes: Power Shard (1)

Object Scanner: Berry

M.A.M. Research: Paleberry
2 Paleberry.png Paleberry

0

Object Scanner: Berry

Object Scanner: Nut

M.A.M. Research: Beryl Nut
5 Beryl Nut.png Beryl Nut

0

Object Scanner: Nut

Object Scanner: Somersloop

M.A.M. Research: Somersloop
1 Somersloop.png Somersloop

5

Object Scanner: Somersloop

Not available in Early Access, work in progress.

Object Scanner: Mercer Sphere

M.A.M. Research: Mercer Sphere
1 Mercer Sphere.png Mercer Sphere

5

Object Scanner: Mercer Sphere

Not available in Early Access, work in progress.

Object Scanner: Mushroom

M.A.M. Research: Bacon Agaric
1 Bacon Agaric.png Bacon Agaric

5

Object Scanner: Mushroom

Alternate: Screw

M.A.M. Research: Hard Drive
50 Iron Ingot.png Iron Ingot

0

Recipes: Alternate: Screw

Alternate: Iron Wire

M.A.M. Research: Hard Drive
50 Iron Ingot.png Iron Ingot

0

Recipes: Alternate: Iron Wire

Alternate: Iron Ingot

M.A.M. Research: Hard Drive
100 Iron Ore.png Iron Ore
100 Copper Ore.png Copper Ore

0

Recipes: Alternate: Iron Ingot

Tier 2[edit | edit source]

Requires completing tier 0 to unlock.

Name Cost Time
(minutes)
Unlocks
Part Assembly

300 Iron Plate.png Iron Plate
300 Iron Rod.png Iron Rod
500Wire.png Wire

100 Cable.png Cable

6

Buildings: Assembler
Recipes: Rotor, Modular Frame

Obstacle Clearing

200 Iron Rod.png Iron Rod
10 Reinforced Iron Plate.png Reinforced Iron Plate
250 Wire.png Wire
50 Cable.png Cable

5

Character: +5 Inventory slots
Equipment: Chainsaw

Jump Pads

200 Iron Plate.png Iron Plate
200 Iron Rod.png Iron Rod
100 Cable.png Cable

4

Buildings: Jump Pad, Tilted Jump Pad, U-Jelly Landing Pad

Walkways

150 Iron Plate.png Iron Plate
150 Iron Rod.png Iron Rod
10 Reinforced Iron Plate.png Reinforced Iron Plate

4

Buildings: Walkway Straight, Walkway Crossing, Walkway T-Crossing, Walkway Ramp, Walkway Turn

Color Gun

M.A.M. Research: Flower Petals
100 Iron Plate.png Iron Plate
100 Iron Rod.png Iron Rod
250 Wire.png Wire

2.5

Equipment: Color Gun, Color Cartridge

Parachute

M.A.M. Research: Fabric
100 Iron Plate.png Iron Plate
100 Iron Rod.png Iron Rod
250 Wire.png Wire

3

Equipment: Parachute

Yellow Shards

M.A.M. Research: Yellow Power Slug
200 Iron Plate.png Iron Plate
200 Iron Rod.png Iron Rod
500 Wire.png Wire

5

Gameplay Mechanic: Overclock buildings
Recipes: Power Shard (2)

Expanded Pocket Dimension

M.A.M. Research: Hard Drive
50 Modular Frame.png Modular Frame
100 Cable.png Cable

0

Character: +5 Inventory slots

Alternate: Reinforced Iron Plate

M.A.M. Research: Hard Drive
50 Iron Plate.png Iron Plate
150 Screw.png Screw

0

Recipes: Alternate: Reinforced Iron Plate

Alternate: Stitched Iron Plate

M.A.M. Research: Hard Drive
50 Iron Plate.png Iron Plate
150 Wire.png Wire

0

Recipes: Alternate: Stitched Iron Plate

Tier 3[edit | edit source]

Requires completing Space Elevator Phase 1 to unlock.

Name Cost Time
(minutes)
Unlocks
Coal Power

25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor
500 Wire.png Wire
200 Cable.png Cable

8

Buildings: Tractor, Truck Station, Coal Generator
Scanner: Coal

Logistics Mk.2

20 Reinforced Iron Plate.png Reinforced Iron Plate
20 Rotor.png Rotor
1000 Wire.png Wire
100 Cable.png Cable

8

Buildings: Conveyor Belt Mk.2, Conveyor Lift Mk.2, Conveyor Pole Stackable

Purple Shards

M.A.M. Research: Purple Power Slug
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor
1000 Wire.png Wire

8

Gameplay Mechanic: Overclock buildings
Recipes: Power Shard (5)

Rebar Gun

M.A.M. Research: Alien Carapace (2)
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor
1000 Wire.png Wire

5

Character: +5 Inventory Slots, +1 Arm Equipment slot
Equipment: Rebar Gun, Spiked Rebar
Recipes: Biomass (Alien Carapace)

Medicinal Inhaler

M.A.M. Research: Mycelia (2)
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor
1000 Wire.png Wire

3

Equipment: Medicinal Inhaler

Caterium Technology

M.A.M. Research: Caterium Ore
1000 Wire.png Wire
100 Cable.png Cable
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor

8

Character: +5 Inventory Slots
Recipes: Caterium Ingot, Quickwire
Buildings: Power Pole MK2
Equipment: Blade Runners
Scanner: Caterium Ore

Alternate: Quickwire

M.A.M. Research: Hard Drive
50 Caterium Ingot.png Caterium Ingot

0

Recipes: Alternate: Quickwire

Alternate: Caterium Wire

M.A.M. Research: Hard Drive
100 Quickwire.png Quickwire
50 Rubber.png Rubber

0

Recipes: Alternate: Caterium Wire

Tier 4[edit | edit source]

Requires completing Space Elevator Phase 1 to unlock.

Name Cost Time
(minutes)
Unlocks
Steel Production

50 Rotor.png Rotor
10 Modular Frame.png Modular Frame
1000 Wire.png Wire
200 Cable.png Cable

10

Buildings: Miner Mk.2, Foundry
Recipes: Steel Ingot, Steel Beam, Steel Pipe, Encased Industrial Beam, Stator, Motor, Heavy Modular Frame

Improved Melee Combat

25 Rotor.png Rotor
10 Modular Frame.png Modular Frame
1500 Wire.png Wire
200 Cable.png Cable

10

Character: +5 Inventory slots, +1 Arm Equipment slot
Equipment: Xeno-Basher

Logistics Mk.3

25 Modular Frame.png Modular Frame
50 Motor.png Motor
2500 Wire.png Wire
300 Cable.png Cable

12

Buildings: Industrial Storage Container, Conveyor Belt Mk.3, Conveyor Lift Mk.3

Medicinal Inhaler: Alien Organs

M.A.M. Research: Alien Organs (1)
10 Modular Frame.png Modular Frame
25 Rotor.png Rotor
1000 Wire.png Wire
100 Cable.png Cable

3

Recipes: Medicinal Inhaler: Alien Organs

Explorer

M.A.M. Research: Raw Quartz
100 Modular Frame.png Modular Frame
15 Beacon.png Beacon
100 Rotor.png Rotor
10 Motor.png Motor

10

Gameplay Mechanic: Map
Recipes: Quartz Crystal, Crystal Oscillator
Vehicle: Explorer
Scanner: Raw Quartz

Explosives

M.A.M. Research: Sulfur
2000 Wire.png Wire
200 Cable.png Cable
10 Modular Frame.png Modular Frame
50 Rotor.png Rotor

10

Character: +5 Inventory slot, +1 Arm Equipment slot
Recipes: Black Powder, Nobelisk
Equipment: Nobelisk Detonator
Scanner: Sulfur

Alternate: Encased Industrial Beam

M.A.M. Research: Hard Drive
50 Steel Beam.png Steel Beam
150 Screw.png Screw

0

Recipes: Alternate: Encased Industrial Beam

Alternate: Modular Frame

M.A.M. Research: Hard Drive
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor

0

Recipes: Alternate: Modular Frame

Alternate: Steel Ingot

M.A.M. Research: Hard Drive
100 Iron Ore.png Iron Ore
100 Coal.png Coal

0

Recipes: Alternate: Steel Ingot

Alternate: Enriched Steel Ingot

M.A.M. Research: Hard Drive
100 Iron Ore.png Iron Ore
100 Coal.png Coal

0

Recipes: Alternate: Enriched Steel Ingot

Alternate: Enriched Coal

M.A.M. Research: Hard Drive
100 Coal.png Coal

0

Recipes: Alternate: Compacted Coal, Alternate: Wood Coal, Alternate: Biomass Coal

Alternate: Rotor

M.A.M. Research: Hard Drive
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor

0

Recipes: Alternate: Rotor

Alternate: Stator

M.A.M. Research: Hard Drive
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor

0

Recipes: Alternate: Stator

Alternate: Motor

M.A.M. Research: Hard Drive
25 Rotor.png Rotor
25 Stator.png Stator

0

Recipes: Alternate: Motor

Alternate: Steel Screw

M.A.M. Research: Hard Drive
50 Steel Ingot.png Steel Ingot

0

Recipes: Alternate: Steel Screw

Alternate: Heavy Modular Frame

M.A.M. Research: Hard Drive
10 Modular Frame.png Modular Frame
20 Encased Industrial Beam.png Encased Industrial Beam
50 Concrete.png Concrete

0

Recipes: Alternate: Heavy Modular Frame

Alternate: Beacon

M.A.M. Research: Hard Drive
10 Crystal Oscillator.png Crystal Oscillator

0

Recipes: Alternate: Beacon

Alternate: Black Powder

M.A.M. Research: Hard Drive
25 Compacted Coal.png Compacted Coal

0

Recipes: Alternate: Black Powder

Alternate: Nobelisk

M.A.M. Research: Hard Drive
50 Black Powder.png Black Powder

0

Recipes: Alternate: Nobelisk

Alternate: Silica

M.A.M. Research: Hard Drive
25 Reinforced Iron Plate.png Reinforced Iron Plate
25 Rotor.png Rotor

0

Recipes: Alternate: Silica

Alternate: Concrete

M.A.M. Research: Hard Drive
100 Limestone.png Limestone

0

Recipes: Alternate: Concrete

Tier 5[edit | edit source]

Requires completing Space Elevator Phase 2 to unlock.

Name Cost Time
(minutes)
Unlocks
Oil Processing

75 Modular Frame.png Modular Frame
75 Motor.png Motor
3000 Wire.png Wire
400 Cable.png Cable

12

Buildings: Oil Pump, Oil Refinery
Recipes: Plastic, Fuel, Rubber, Circuit Board
Scanner: Crude Oil

Industrial Manufacturing

75 Modular Frame.png Modular Frame
75 Motor.png Motor
3000 Wire.png Wire
400 Cable.png Cable

12

Buildings: Manufacturer, Truck
Recipes: Computer

Rebar Scatter Gun

M.A.M. Research: Alien Organs (2)
50 Modular Frame.png Modular Frame
50 Motor.png Motor
3000 Wire.png Wire

12

Equipment: Rebar Scatter Gun
Recipes: Biomass (Alien Organs)

Caterium Electronics

M.A.M. Research: Quickwire
1000 Quickwire.png Quickwire
300 Cable.png Cable
50 Modular Frame.png Modular Frame
50 Motor.png Motor

10

Buildings: Smart Splitter
Recipes: A.I. Limiter, Supercomputer, High-Speed Connector

Rifle

M.A.M. Research: Nobelisk
3000 Wire.png Wire
500 Cable.png Cable
50 Modular Frame.png Modular Frame
50 Nobelisk.png Nobelisk

12

Equipment: Rifle
Recipes: Cartridge

Radar Technology

M.A.M. Research: Crystal Oscillator
25 Heavy Modular Frame.png Heavy Modular Frame
100 Motor.png Motor
50 Crystal Oscillator.png Crystal Oscillator
25 Beacon.png Beacon

12

Building: Radar Tower

Inflated Pocket Dimension

M.A.M. Research: Hard Drive
50 Heavy Modular Frame.png Heavy Modular Frame
50 Computer.png Computer

0

Character: +5 Inventory slots

Alternate: Circuit Board

M.A.M. Research: Hard Drive
50 Rubber.png Rubber
200 Wire.png Wire

0

Recipes: Alternate: Circuit Board

Alternate: Caterium Circuit Board

M.A.M. Research: Hard Drive
50 Plastic.png Plastic
100 Quickwire.png Quickwire

0

Recipes: Alternate: Caterium Circuit Board

Alternate: Rubber Cable

M.A.M. Research: Hard Drive
200 Wire.png Wire
50 Rubber.png Rubber

0

Recipes: Alternate: Rubber Cable

Alternate: Plastic

M.A.M. Research: Hard Drive
50 Fuel.png Fuel
50 Rubber.png Rubber

0

Recipes: Alternate: Plastic

Alternate: Computer

M.A.M. Research: Hard Drive
200 Wire.png Wire
50 Plastic.png Plastic
50 Quartz Crystal.png Quartz Crystal

0

Recipes: Alternate: Computer

Alternate: Caterium Computer

M.A.M. Research: Hard Drive
50 Plastic.png Plastic
200 Wire.png Wire
100 Quickwire.png Quickwire
50 Rubber.png Rubber

0

Recipes: Alternate: Caterium Computer

Alternate: Crystal Oscillator

M.A.M. Research: Hard Drive
100 Raw Quartz.png Raw Quartz
50 Rubber.png Rubber
100 Quickwire.png Quickwire

0

Recipes: Alternate: Crystal Oscillator

Alternate: High-Speed Connector

M.A.M. Research: Hard Drive
100 Quickwire.png Quickwire
50 Silica.png Silica
50 Rubber.png Rubber

0

Recipes: Alternate: High-Speed Connector

Tier 6[edit | edit source]

Requires completing Space Elevator Phase 2 to unlock.

Name Cost Time
(minutes)
Unlocks
Expanded Power Infrastructure

75 Heavy Modular Frame.png Heavy Modular Frame
200 Motor.png Motor
75 Computer.png Computer

14

Buildings: Fuel Generator, Conveyor Belt Mk.4, Conveyor Lift Mk.4

Jetpack

75 Heavy Modular Frame.png Heavy Modular Frame
150 Motor.png Motor
75 Computer.png Computer

12

Character: +5 Inventory slots
Equipment: Jetpack

GasMask

75 Heavy Modular Frame.png Heavy Modular Frame
100 Motor.png Motor
50 Computer.png Computer

12

Equipment: Gasmask, Filter

Advanced Caterium Electronics

M.A.M. Research: Supercomputer
20 Superomputer.png Supercomputer
50 Heavy Modular Frame.png Heavy Modular Frame
100 Motor.png Motor

12

Character: +4 Inventory slots
Buildings: Power Pole Mk. 3, Geo Thermal Generator, Programmable Splitter
Scanner: Geyser

Rifle Mk.2

(Currently Unavailable)

M.A.M. Research: Rifle
100 Computer.png Computer
100 Modular Frame.png Modular Frame
100 Cartridge.png Cartridge

14

Equipment: Rifle Mk.2

Alternate: Turbo Fuel

M.A.M. Research: Hard Drive
100 Compacted Coal.png Compacted Coal
100 Fuel.png Fuel

0

Recipes: Alternate: Turbo Fuel

Tier 7[edit | edit source]

Requires completing Space Elevator Phase 3 to unlock.

Currently locked in early access but available in Experimental. Monorail Train Technology is locked.

Name Cost Time
(minutes)
Unlocks
Monorail Train Technology

100 Heavy Modular Frame.png Heavy Modular Frame
50 Computer.png Computer
100 Motor.png Motor

16

Buildings: Train Station, Train Docking Station, Track, Electric Locomotive, Freight Car

Nuclear Power

200 Heavy Modular Frame.png Heavy Modular Frame
400 Motor.png Motor
200 Computer.png Computer

16

Buildings: Nuclear Power Plant
Equipment: Radioactivity Resistant Suit
Recipes: Nuclear Fuel Rod
Scanner: Uranium

Bayer Process

200 Heavy Modular Frame.png Heavy Modular Frame
400 Motor.png Motor
200 Computer.png Computer

16

Buildings: Miner Mk.3, Conveyor Belt Mk.5, Conveyor Lift Mk.5
Recipes: Aluminum Ingot, Alclad Aluminum Sheet, Heat Sink, Radio Control Unit, Turbo Motor, Battery
Scanner: Raw Quartz, Bauxite

Alternate: Heat Sink

100 Alclad Aluminum Sheet.png Alclad Aluminum Sheet
500 Wire.png Wire

0

Recipes: Alternate: Heat Sink

Alternate: Radio Control Unit

50 Heat Sink.png Heat Sink
50 Quartz Crystal.png Quartz Crystal

0

Recipes: Alternate: Radio Control Unit

Alternate: Turbo Motor

50 Radio Control Unit.png Radio Control Unit
50 Motor.png Motor

0

Recipes: Alternate: Turbo Motor

Alternate: Electromagnetic Control Rod

250 Quickwire.png Quickwire
50 Stator.png Stator

0

Recipes: Alternate: Electromagnetic Control Rod

Alternate: Uranium Cell

100 Uranium.png Uranium
100 Sulfur.png Sulfur
100 Raw Quartz.png Raw Quartz
100 Caterium Ore.png Caterium Ore

0

Recipes: Alternate: Uranium Cell

Alternate: Nuclear Fuel Rod

100 Uranium.png Uranium
100 Raw Quartz.png Raw Quartz
100 Caterium Ore.png Caterium Ore

0

Recipes: Alternate: Nuclear Fuel Rod

Tier 8[edit | edit source]

Requires completing Space Elevator Phase 3 to unlock.

Currently locked in early access.

Name Cost Time
(minutes)
Unlocks
Particle Enrichment

400 Heavy Modular Frame.png Heavy Modular Frame
150 Turbo Motor.png Turbo Motor
200 Superomputer.png Supercomputer
300 Computer.png Computer

Buildings: Hadron Collider, Quantum Encoder
Recipes: Quantum Crystal, Superposition Oscillator, Quantum Computer

Logistics Mk.4

150 Turbo Motor.png Turbo Motor
100 Heat Sink.png Heat Sink
300 Computer.png Computer

Buildings: Powered Wall, Conveyor Belt Mk.6

Improved Manufacturing

150 Turbo Motor.png Turbo Motor
100 Heat Sink.png Heat Sink
300 Computer.png Computer

Character: +5 Inventory slots
Buildings: Constructor Mk.2, Assembler Mk.2, Manufacturer Mk.2

Improved Smelting

150 Turbo Motor.png Turbo Motor
100 Heat Sink.png Heat Sink
300 Computer.png Computer

Character: +5 Inventory slots
Buildings: Smelter Mk.2, Foundry Mk.2

Tips[edit | edit source]

  • Later milestones have longer cooldown. For example, jetpack and gas mask milestones at tier 6, you could fulfill all jetpack material, without pressing the launch button, select the gas mask milestone and fulfill it. Then you could launch jetpack milestone immediately followed by gas mask milestone. This way you could save a lot of time.

Gallery[edit | edit source]