How well do you really know the tech tree? Test yourself against the clock, and every answer makes the next game easier to recall.
- 60 seconds. Answer as many questions as you can about civilizations, their bonuses and their tech trees, drawn from 2,400+ possible questions.
- 100 points for each right answer, plus up to 100 more for answering fast.
- Streaks pay. Each right answer in a row adds +20, up to +100.
- Three strikes and you're out. A wrong answer also breaks your streak.
Tip: press 1–4 or A–D to answer.