# Research

Source page: https://wos.sheet.guide/en/guides/research  
Last checked: 17 Oct 2026  
Unofficial fan site, not affiliated with Century Games. Numbers, unlock days and event rules change with patches and differ between states; treat them as rules of thumb and confirm in-game.

Three main trees: Growth, Economy and Battle.

**TL;DR:** Early: **Growth** (construction and research speed). Add **Economy** when resources are your bottleneck, and push **Battle** once PvP and rallies matter.

## At a glance

### At a glance

- Early: **construction & research speed** in Growth.
- Economy when resources hold you back; **Battle** once you’re fighting.
- Never let the queue sit idle; save research speedups for event days.

## Details

### Tree priorities

| Tree | When | Focus |
| --- | --- | --- |
| Growth | Early | Construction speed, research speed |
| Economy | When resources are the bottleneck | Gathering and production |
| Battle | Once PvP and rallies matter | Troop attack, defense, lethality, health |
| War Academy | Fire Crystal era | Higher-tier troops (Helios, then T12) |

### Research tips

- Never let the research queue sit idle. Queue a long one before bed.
- Save research speedups for **SvS prep’s research day** and Hall of Chiefs.
- **Alliance Tech** is a separate bonus system. Donate to it daily.