Idle Planet Miner – Mothership Rooms Guide

Mothership Rooms

Mothership room add multiplicative bonus that stack with ships and space station nodes as well as Managers and they get saved after you sell a galaxy.

Key Rooms for Beginners:

• Underforge:
  • Reduces smelting costs by up to 50% at lvl 11
• Dorms:
  • Reduces crafting costs by up to 50% at lvl 11
• Laboratory:
  • Reduces research project cost by up to 50% at lvl 11

All three of these rooms work towards making the early and mid game significantly easier and more playable.

Other Great Rooms to Work on Early Are:

• Robotics
  • Level 4, it unlocks tier 4 missions.
• Lounge:
  • Flat bonus credits.

Other Notable Information:

• Backup Generator
  • Only invest as much as you need to sleep and/or work
  • Have auto miner work the entire time, or maybe your work shift. Anything beyond that is useless
• Terrarium
  • Invest at your own risk
  • This room is considered the most useless room… unlock this last and upgrade it last, there’s more info in Colonization Guide.

Getting lounge to x1.5 will make your credits feel like they’re coming in significantly faster, because they will be. The lounge will pay for itself very quickly at this point.

Getting lounge to x2 will be even better, and, although the payback time will be much longer, it is still quite reasonable.

Getting the lounge to x2.5 is obviously an improvement, but now we’re talking only an extra 25% (over x2), and the payback time will be significantly longer, but still reasonable.

Getting to x3 will continue to be an obvious improvement, but even less percentage-wise. And the payback time is quite a bit longer. I’m not really sure it’s worth it.

Beyond that, the payback time for the lounge is immense, and I’ve only increased beyond this because the lounge is the cheapest upgrade on my list. It may pay for itself, but we’re talking about months if not years.

Note that getting the exodus makes all of these better, as does any credit module in the space station.

I’d recommend getting to x1.5 quickly. Then spend a bit improving your speed. And then get to x2 while also investing in other aspects. And then more slowly getting to x2.5. After that, it’s more personal preference where you want to spend your credits. I would not (and did not) hurry from x2.5 to x3.

All Rooms

Engineering

• Room # 01
• Effect: Increases Mining Speed on all planets
• Start: x1.25 | Upgrade amount x0.15
• Max Lv 50
• Max Lv. Effect: x8.60
• Total Credits to max room: 3,965,214

Aeronautical

• Room # 02
• Effect: Increase SHIP SPEED on all planets
• Start: x1.50 | Upgrade Amount x0.25
• Max Lv 50
• Max Lv. Effect: x13.75
• Total Credits to max room: 3,965,214

Packaging

• Room # 03
• Effect: Increases SHIP CARGO capacity on all planets
• Start: x1.50 | Upgrade Amount x0.25
• Max Lv 50
• Max Lv. Effect: x13.75
• Total Credits to max room: 3,965,214

Forge

• Room # 04
• Effect: Increases the SMELTING speed of all Smelters
• Start: x1.2 | Upgrade amount x0.10
• Max Lv 50
• Max Lv. Effect: x6.10
• Total Credits to max room: 5,692,301

Workshop

• Room # 05
• Effect: Increases the CRAFTING Speed of all Crafters
• Start: x1.20 | Upgrade amount x0.10
• Max Lv 50
• Max Lv. Effect: x6.10
• Total Credits to max room: 5,692,301

Astronomy

• Room # 06
• Effect: Decreases the COST of Mining/Speed/Cargo upgrades on all planets
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 2,613

Lab

• Room # 07
• Effect: Decreases the ingredients needed for unlocking Projects
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 2,613

Terrarium

• Room# 08
• Effect: Decreases the ingredients needed for colonizing
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 924

Lounge

• Room # 09
• Effect: IncreaseS the amount of Credits rewarded when performing a Galaxy Sell
• Start: x1.15 | Upgrade amount x0.05
• Max Lv 50
• Max Lv. Effect: x3.60
• Total Credits to max room: 4,953,071

Robotics

• Room # 10
• Effect: Decreases the amount of time needed for Rovers to finish a mission
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 2,760

Backup Generator

• Room # 11
• Effect: Increases max Idle Time
• Start: 120 mins | Upgrade amount 30 mins
• Max Lv 44
• Max Lv. Effect: 1440 minutes (24 hours)
• Total Credits to max room: 1,706,401

Underforge

• Room # 12
• Effect: Decreases the ingredients needed for Smelting bars & alloys
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 924

Dorms

• Room # 13
• Effect: Decreases the ingredients needed for Crafting Items
• Start: -10% | Upgrade amount -4%
• Max Lv 11
• Max Lv. Effect: -50%
• Total Credits to max room: 1,004

Sales

• Room # 14
• Effect: Increases the value of alloys & items
• Start: x1.15 | Upgrade amount x0.05
• Max Lv 50
• Max Lv. Effect: x3.60
• Total Credits to max room: 7,578,315

Classroom

• Room # 15
• Effect: Increases manager bonuses
• Start: x1.15 | Upgrade amount x0.05
• Max Lv 50
• Max Lv. Effect: x3.60
• Total Credits to max room: 29,893,551

Marketing

• Room # 16
• Effect All positive market change bonus
• Start: x1.30 | Upgrade amount x0.10
• Max Lv 50
• Max Lv. Effect: x6.20
• Total Credits to max room: 13,217,255

Planet Relations

• Room # 17
• Effect Colonizing bonuses
• Start: x1.25 | Upgrade amount x0.10
• Max Lv 50
• Max Lv. Effect: x6.15
• Total Credits to max room: 19,039,482

Belt Studies

• Room # 18
• Effect Asteroid and debris bonuses
• Start: x1.25 | Upgrade amount x0.10
• Max Lv 50
• Max Lv. Effect: x6.15
• Total Credits to max room: 20,109,880