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The Heroes' Tomb
— SG/MY description

Abyss 3 (zm_abyss3) is an official Zombie Mods map in Counter-Strike Online.


Abyss 3 is the third Zombie Mods exclusive map in the Abyss series. It was released alongside with Zombie: The Hero and also available in other Zombie Mods. This map takes place in the basement of Rex Research Institute. It has a bunker that can prevent zombies from coming in. This map enables the players to swim. Try to close the bunker's doors first before the zombie appears.

Official description

One year after the outbreak of zombies, we discovered that the zombies are being unusual and also being much stronger. They can revive and evolve. We also discovered that there are people who are researching zombies in a nearby waste plant. We read the residual files from that plant. It says, "There are only one way to kill the zombies, perform HEADSHOTS on them". After that, we decided to counterattack the zombies and find the culprit behind the whole incident!!

  • Humans: Survive the round, or kill all the zombies with headshot.
  • Zombies: Infect all humans especially the Hero/Heroine to win the round.

Release date

Dbarrel gfx.png

This map was released alongside Zombie: The Hero and Double-barreled shotgun on:

  • Singapore/Malaysia: 21 December 2011 alongside Battle Veteran.
  • Indonesia: 15 February 2012 alongside Battle Veteran.
  • Turkey: 20 November 2013 alongside Criss and Yuri.

This map was released alongside Open Beta Test on:

  • CSN:Z: 23 September 2014.
  • Vietnam: 26 March 2015.



  • The front door of the bunker can be destroyed.