Twitchers

Twitchers are zombie-like creatures present in the hallucinogenic and twisted imagination of David Leatherhoff. They serve as the main enemies of Afraid of Monsters, and thus its Sven Co-op conversion.

With deathly pale skin, horrifically twisted expressions, blood-stained clothes and razor sharp claws, they relentlessly harass Leatherhoff in the original AoM and players in its conversion. They're reskins of traditional Half-Life zombies, but are extremely fast and sufficient.

Trivia

 * It's been stated that on Cocyx's server, at some point, Twitchers' made footsteps sounds, unlike most AoM incarnations where they make absolutely no sounds except occasional growling.