Counter Strike Online Wiki

Cousteau is a Transcendent grade grenade in Counter-Strike Online.


A futuristic sentry gun that lands in a stealth state once thrown, and automatically attacks any enemies it detects with its sensors.

Attack modes (Switch Attack Mode: <Right-click>)
  • Exploshow: Self-destructs after detecting the enemy, inflicting explosion damage as well as damage over time.
  • Lente: Slows the targeted enemy and attacks them for a set amount of time before self-destructing.


  • You can only throw up to 3 Cousteau at a time.
  • You cannot refill Cousteau by any means until all of it are thrown.
  • Just like Trinity Grenade, Cousteau will attach to any first point of impact except player/enemy body.
  • This weapon can become invisible from enemy vision upon thrown.

Release date[]

  • South Korea: 9 March 2023.
  • China: 15 March 2023.
  • CSN:S: 22 March 2023.

Paired characters[]

  • Gladius: The number of Cousteau held is reduced to 2, and a grenade is regenerated at the last explosion location.
  • Xiao Ming: The explosion waiting time of 'Cousteau' <Exploshow> is shortened and the range is reduced. Damage and knockback are added. The detection range of <Lente> is increased and the duration is reduced. Damage per tick increases and explosion damage decreases.



  • The name of the weapon, Cousteau might refer to Jacques Cousteau, who was a French naval officer, oceanographer, filmmaker and author. He co-invented the first successful open-circuit self-contained underwater breathing apparatus (SCUBA), called the Aqua-Lung, which assisted him in producing some of the first underwater documentaries.
  • The user will not radio announce "Fire in the hole!" when tossing this weapon due to the fact that this weapon isn't actually a grenade.