What are the servers in Left 4 Dead 2 that have a lot of AI called

Servers with a lot of AI in Left 4 Dead 2 are commonly referred to as "AI Only" or "Bot" servers.In Left 4 Dead 2, these servers are designed to allow players to experience the game with AI-controlled survivors and/or infected, rather than relying on human players. They are popular for practicing campaigns, testing strategies, or enjoying the game solo or with a small group. These servers often feature enhanced AI settings, including increased numbers of special infected, faster AI reactions, or custom scenarios. Key Features of AI-heavy Servers:AI Survivors: Bots fill in for missing human players in campaigns or versus modes.AI Infected: Some servers increase the number of AI-controlled zombies to create a more challenging experience.Custom Maps and Mods: Many AI servers use custom maps or mods to enhance gameplay and test AI behavior.Solo or Small Group Friendly: Ideal for players who want to play without a full team of humans. To find these servers, you can use server monitoring sites like GameMonitoring, Tsarvar, or List2Play, filtering for modes such as "AI Only," "Bot Survival," or "Co-op with AI" . These platforms provide server descriptions, player counts, and sometimes indicate whether AI bots are heavily used, making it easier to join the right server for AI-focused gameplay.