: Beyond the standard Bomb Defuse and Hostage Rescue, V9 includes modes like Zombie Scenario, Ghost Mode, Alien Mode, and Team Deathmatch.

Counter Strike Extreme (often stylized as ) is one of the most comprehensive mods ever created for the original Counter-Strike engine. Originally released around 2011, it takes the core mechanics of Valve's classic and injects them with elements from Counter-Strike Online .