The ladder
Five tiers with five levels in each. Every correct answer moves you up, and you never drop back down.
What each level unlocks
New looks for your avatar. Reach the level and the look is yours to wear. None of it can be bought.
How XP and gems work
Earning XP
- Correct answer
- 4 XP
- Finish a skillBronze, silver or gold medal
- 25, 40 or 60 XP
- Master a skill at 100
- +40 XP
A ten-question session that finishes a skill is about 80 XP.
Gems and certificates
- RubyFor each skill you master at 100. Replaying a skill never earns a second one.
- EmeraldFor mastering every skill in a topic.
- DiamondFor reaching each new tier: Silver, Gold, Platinum and Diamond. Four in the whole climb.
- Weekly certificates300 XP in one week earns Bronze. Four Bronze make a Silver and four Silver make a Gold. The weekly count starts again each Monday.
Gems and certificates can't be spent. They are a record of what you have done.