As of posting, @zzings is going to reach level 13 Yamato soon, follow closely by
@powernap. Looks like the upgrade race is very much depending on resource accumulation efficiency & Stardust (SD) wallet depth. Maybe some can just spare some Steem to buy Imperium Chests.
Some can spare to burn planets for fuel their SD pool. What is next once player reaches Yamato level 20? Are they going to be level 20 Yamato?
Stay tune.
p/s: picture a bit low res, sorry.