1421 Voyages Of Zheng He is a slot machine game developed by IGT. It ¬†consists of 5 reels and 3 rows with 12 symbols of which are 1 wild and 1 scatter icon. Its theme is inspired by Chinese culture and its rulers. Who Can Play 1421 Voyages of Zheng He Free Slot? 1421 Voyages Of Zheng He free slot can be played by anyone with a stable Internet connection both on PC and mobile devices run on iOS, Android or Windows. Before playing, it is advised to make sure that a player meets the betting age requirements and other laws in their country. Betting and Payout Rules There are 88 possible bet lines players can bet, since the number 8 is the one with a special meaning for Chinese culture. The bettor selects whether he wants to bet on 8,28,48,68 or 88 lines.