START GUIDE
Click here for the beginning of the English version
Menus and operational information are in English and understanding is required to proceed. We will explain how to read the screen and the first operation in Japanese.
- How to read the screen
- The top row shows the date, funds, and power generation amount, and the right side shows the building, warehouse, and crew. First, check the missing resources and free space.
- First operation
- Open INVESTMENTS, PRODUCTION, FARMING, MINING, TRADE on the left and select the required quantity. After preparation, proceed one month with NEXT MONTH.
- Expedition
- Specify colonists, scientists, number of months, and resources to explore in EXPEDITIONS. Before pressing OK, confirm the number of personnel remaining in the colony.
- Target and stopping conditions
- We will have 100 million XRP in 120 months. If the staff runs out of food for three months or continues to be in the red for one year, they will be dismissed, so they will operate with a margin of leeway.
HOW TO PLAY
Controls and goals
- How to operate
- Use the mouse to operate the menu on the left, numeric field, choices, and enter button, and press NEXT MONTH to move forward one month.
- Goal
- Manage power, resources, food, population, and funds, and prepare 100 million XRP within 120 months to make your colony independent
ABOUT THE GAME
Connecting electricity and food,
Move colonies on a monthly basis.
``Terra Infirma: Colony'' is a turn-based colony simulation by joinfive. Manage power, minerals, food, population, and funds on a monthly basis, and aim to make your outpost self-sustaining and buy its freedom from the Empire in 10 years.
PLAN AN EXPEDITION
Decide the number of people and the period,
Search for new deposits.
EXPEDITIONS specifies the colonists and scientists to send, the number of months for the expedition, and the resources to search for. Weigh the risk of removing personnel from colony operations against the opportunity to find new mineral deposits.

Actual play photography: Detour Playlist Editorial Department/Production: joinfive
Assemble monthly operations based on power generation amount
Uranium is sent to a generator to secure kW, which is then allocated to construction, mining, and production. At the top and right side of the screen, you can check the status of your funds, power generation, buildings, warehouses, and crew at once.
Search for unknown deposits on an expedition
Select colonists and scientists, time period, and targets of exploration and send out an expedition. The official explanation states that while you can explore and discover new deposits, expeditions also come with risks.
Connect buildings, production, and trade to a 10-year plan
Increase your workforce with houses, produce machinery with factories, and expand trade opportunities with landing fields. We will have 120 million XRP in stock by 120 months, avoiding food shortages and long-term deficits.
PLAY NOTES
Play notes
- Scale
- One turn is one month, and the deadline is 120 months after 10 years when the Empire returns.
- Language
- Menu, resource information, goals, and failure conditions are in English, and understanding of English is required to proceed. The start guide in this article supplements the initial display.
- Fees/Support environment
- You can play the free HTML5 browser version at itch.io. The official page also distributes downloadable versions at any price.
- Public status
- The official itch.io work page shows the Status as Released and the Platform as HTML5.
Plan for 120 months,
Let's buy the freedom of the colonies.
The official itch.io work page, official profile, and official web version were confirmed on August 24, 2026. The two published images were taken by the editorial department on the official web version. Sources: Terra Infirma: Colony — joinfive official itch.io, joinfive official itch.io profile
STREAMING INFO
Streaming and video uploads
On the official itch.io work page and joinfive official profile, we were unable to confirm any statement that allows the public to use live videos, live streaming, video posting, and monetization. This does not mean a ban on distribution. Please check with the creator for the latest conditions before implementation.
“Unconfirmed” does not mean streaming is prohibited. We have not confirmed an official policy for the general public.




READER COMMENTS
Comments on Terra Infirma: Colony
Share your thoughts after playing, or tell other readers what you recommend about the game.
All language editions share these comments. Comments are shown in their original language.
Loading comments…