Game went on hold after 3 episodes because the dev was sick and needed a transplant. He recovered and has released 2 more episodes since then with episode 5 having come out in February, but since the whole covid pandemic really blew up he has not been heard from in 2 months, he is part of the group that is extremely vulnerable due to his transplant.
Games get the onhold tag when the dev states that the development is on hold, and it gets removed when the dev says he is actively developing the game again.