Sigils
Sigils are significant points of interest that humans must defend throughout the course of a game of Zombie Survival to win. Upon reaching wave 6, sigil locations regardless if the sigil is corrupted or not become escape portal which upon opening and entering allow humans to escape, thus giving humans a win. Sigils allow teleportation and can be corrupted by zombies, preventing teleportation.
Sigil Mechanics
Sigils can be teleported between humans. The amount of time taken to teleport between two locations is based on that particular humans teleportation speed, derived from several skills and trinkets. If a human is hit by a zombie while teleporting, they will lose teleportation progress and take longer to teleport to their destination. It is possible for a zombie to completely deny teleportation if they inflict enough damage.
Sigils are corruptable - corrupted sigils cannot be teleported to. Corruption occurs when zombies deal enough damage or it is hit with corrupter projectiles. You will know if a sigil is corrupted by looking at the bottom middle of your screen. If a sigil is corrupted, humans may damage it if they're within a short range to uncorrupt it and let it become a destination to teleport to again.
Sigils can have an effect on damage resistance. The more sigils the humans have, the less damage resistance the zombies will have. This is the opposite when zombies corrupt sigils.
See also