The mod adds a mob that can tie you up, gag you with a cloth gag or a red ball, tie your entire body and lead you on a leash.
After you have been tied up, you will not be able to move and will obediently chase the player, but from time to time you can try to free yourself (key G), if you succeed, the leash will break off and you will be able to jump. You can free yourself with a knife.
If the tied player is tied up for too long, he can starve to death, and if his mouth is not blocked, then he will most likely run away. The mod also adds a reward system for capturing and tying players, you can specify a reward for any player.
The mod has already received 2 major updates, now it has a lot more items and features. Now you can tie a bunch of different ropes and chains, even a film, there is a mob, traps, and a bunch of other things, the mod has a wiki with a description of everything.