Have the Black Death affect other parts of the world as severe as it did in Europe, BUT, Europe remains relatively unaffected, with deaths being only as high as 5%.
If the first paragraph made little sense, then what I meant was that have the Black Death affect China, India, and the Muslim World much more worst than it did in OTL Europe. What could the effects be?
RULES:
1. The Black Death can only reach as far into Europe as Poland and Bulgaria
2. In the Middle East, the Black Death must have a 10% death rate at the minimum. Go crazy at the maximum
3. 15% death rates for China and India. Again, go crazy at the maximum
4. If plausible, Europe SHOULD colonize as OTL
Bonus Points:
1. If colonization occurs, larger European settlements in China. (Definitely larger than those concessions, Hong Kong, and Macau)
2. Deeper penetration (hehe) of the Black Death into Africa
3. A larger Byzantine Empire
4. Complete Chinese Balkanization
5. A surviving Mongol Empire