Plutonium is the free community client that keeps classic Call of Duty titles alive with dedicated servers, mod support, and its own anticheat. MantaScope tracks every registered Plutonium server with real-time polling, human-vs-bot player splits, 24-hour activity graphs, and rankings - so you can see which servers are genuinely populated before you join.
New to Plutonium? Start with our guide: How to play Black Ops 2 online in 2026.
Multiplayer and Zombies - the most active Plutonium title, with a huge custom zombies map scene.
Browse servers → (624 servers tracked)Classic WWII multiplayer and the original Nazi Zombies, including co-op custom maps.
Browse servers → (113 servers tracked)Many BO2 multiplayer servers fill empty slots with bots, so raw counts overstate how alive a server is. MantaScope separates real players from bots on every row and ranks servers by genuine human activity, with per-server population history so you can spot a server's real peak hours.