To play multiplayer offline on PC for free, you must use community-developed clients and mods, as the standard Steam version typically requires an internet connection for most multiplayer features. Recommended Method: Plutonium T5 with LanLauncher

| Method | Cost | Bots? | All Maps? | Progression | Legal? | |--------|------|-------|-----------|-------------|--------| | Combat Training Demo | Free | Yes | No (Nuketown only) | No | Yes | | Purchased Steam + Offline | ~$40 | Yes | Yes | Yes | Yes | | Cracked version | Free | Yes | Yes | Yes (local) | No | | Cracked + Plutonium | Free | Yes | Yes | Yes | No |

If you are playing strictly offline or on a LAN server using the methods above, you will not be banned from official Steam services. Do I need the DLCs? No, but the Plutonium method often includes support for DLC maps even in offline mode. Does this work for Zombies?

: Launch Combat Training in the first instance. You can add up to 22 bots from the Bot Warfare team to fill the match. Method 4: Console Commands (Manual Bypass)

Method 2: Plutonium & LanLauncher (Recommended for Best Experience)

This is the smoothest experience, though the client requires an initial login (free account) but no payment.

It opens multiple instances of the game and assigns controllers/keyboard to each player. Combat Training menu in the first instance to start a match with bots. Feature Highlight: Offline LAN Protection LanLauncher