The anime adaptation of the manga That Time I Got Reincarnated as a Slime from Fuse and Mitz Vah got underway in Japan on its October 1st, 2018 premiere, and a simuldub is moving right along from Funimation.
The manga, which has just under 5 million copies in print in Japan, began in 2013 and a manga adaptation launched in 2015, both of which are being brought out by Yen Press and Kodansha Comics respectively.
Devour | That Time I Got Reincarnated as a Slime (SimulDub Clip)