Harmony is the operational center of the game. Official material confirms more than 25 buildings and links camp growth to new recipes, upgrades and Stackmon abilities.
Player answer
Quick answer
Build for progression: prioritize the Harmony upgrade that exposes the recipe, upgrade or ability needed for your next player goal.
Read the unlock text before spending resources.
Choose the building that removes the current progression block.
Recheck costs and upgrade paths in the current build.
Current limit: Exact costs, timings and a complete building tree are not yet verified.
A developed Harmony board shows how creatures, materials, structures and tasks share the same card space. Promotional screenshot; exact values may change. Official Steam store screenshot
What buildings do in the progression loop
Construction is described as a way to grow and customize the home base. The important published relationship is progression: camp development unlocks new recipes, upgrades and abilities.
Build-version details matter
The latest Demo patch includes a fix for upgrading houses with more than two houses and two Stackmon. That proves house upgrades existed in that Demo build, but it does not publish a complete launch cost table or upgrade tree.
What is intentionally absent
This guide does not list building costs, construction times or production rates. Those values need reproducible launch-build evidence before they can support a planner.
What Steam achievements confirm
Steam includes Architect for building a first Structure and Engineer for upgrading a Structure to level +2. Those are verified progression milestones; they still do not expose costs, timings or the complete building tree.
