Project Tomorrow Base Building
How base building works in Project Tomorrow, from gathering resources to fortifying against alien attack waves.
Base building is one of the three confirmed pillars of Project Tomorrow. The official description is clear: transform a barren planet into a lush world habitable for humans — gather resources, build and expand your base, deploy terraforming machines, and defend them from an ever-present alien threat.
The building loop
- Gather resources — materials come from the world around your base.
- Build — construct structures that expand what your base can do.
- Deploy terraforming machines — these are the machines that restore the environment (see Terraforming).
- Expand — grow the base as your operation gets bigger.
- Defend it all — alien forces will try to dismantle your base and machines.
Defending your base
Terraforming attracts attention. As alien forces grow hostile, they send waves of attackers to dismantle your base and machines. The official loop for defense is: construct defensive structures, upgrade your arsenal, and repel each assault.
Because defense is a confirmed part of the loop, a base is never just a collection of buildings — positioning, fortifications and upgrades matter. Specific defensive structure names, costs and stats are not officially published yet and are intentionally not listed here.
Base building and progression
Base building feeds into progression: per the latest developer update, rebuilding settlements and growing population now helps you complete regions and move to the next area. See the Settlements guide for how that fits together.
FAQ
Common questions about this topic.
How does base building work in Project Tomorrow?
You gather resources, build and expand your base, and deploy terraforming machines. The base is also the target of alien attack waves, so you construct defensive structures and upgrade your arsenal to repel them.
What defensive structures can I build?
The developer confirms defensive structures exist but has not published specific names or costs. This page will list them once they are officially confirmed.
Can I expand my base anywhere?
The official description confirms base expansion as a core mechanic, but the exact placement rules have not been detailed by the developer.