All players are split into 2 teams; Humans and Monsters.
If any monsters are still alive at the end of the game, the monsters win and the humans lose.
If all the humans are eaten by the end of the game, the monsters win and the humans lose.
If all the monsters are caught at the end of the game, the humans win and the monsters lose.
The monsters are invisible, but they leave a particle trail behind, and randomly reveal themselves.
The monsters can do 3 things;
Scream - Blinds nearby humans but reveals the monster.
Teleport - Teleports the monster away a short distance.
Attack - A human in the attack ring around the monster will be eaten, again revealing the monster.
The humans can do 2 things;
EMF Reader - Tells you roughly how close the nearest monster is.
Catcher - Throw it on the ground to catch and eliminate any monsters in its circle.