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Research Progression & Tiers
Solarpunk has two research tracks, each gated by tiers. Every tier is unlocked with one key resource — here's exactly what each costs and what it opens, so you never get stuck wondering what to gather next.
Main research track
The core progression. Each tier is unlocked with a single key resource, then opens the next batch of buildings, tools and the following tier.
1× Build-Hammer
1× Beeswax
1× Iron
1× Copper
1× Wheat
1× Sunflower
1× Corn
1× Paprika
1× DiamondElectronics track
The power & automation branch (solar, drones, recyclers). This is the one that famously stalls players — Tier 4 needs Algae, Tier 3 needs Cobalt.
- Opens up
1× Silicon
1× Cobalt
1× AlgaeNeed a specific material? See how to get any item or plan the full cost on the research planner.