The fall 2018 anime adaptation of Kumo Kagyu’s property Goblin Slayer revealed back in March 2019 that an OVA is being produced for it that will get released in theaters in limited form as Goblin Slayer -Goblin’s Crown-.
The series is directed by Takaharu Ozaki based on the series composition by Hideyuki Kurata.
A manga adaptation by Kosuke Kurose began in 2016 as well with Yen Press releasing both of them in North America.
The light novels from Kumo Kagyu began in 2016 with ten volumes out as of March 2019.