Even in offline mode, Black Ops 1 tries to phone home to verify DLC. Solution: Unplug your Ethernet cable / turn off Wi-Fi entirely before launching Steam. Then launch Steam. It will be forced into "Offline Mode."
Remember: Treyarch never intended PC players to play offline. These workarounds are using the game's own logic against it. As long as you legally own the game on Steam, you are free to use Combat Training or console commands without any fear of bans. how to play call of duty black ops 1 multiplayer offline pc
So load up mp_nuked , type /addbot 11 , grab your Commando with a Red Dot Sight, and enjoy the best Call of Duty era—completely offline. Call of Duty Black Ops 1, offline multiplayer PC, Combat Training, PC bots, LAN party, console commands, no internet, how to play Black Ops 1 offline, Kino der Toten solo, split-screen PC. Even in offline mode, Black Ops 1 tries
You are out of luck on PC. Buy an Xbox 360 or PS3 for that feature. Alternatively, buy Call of Duty: Black Ops 3 on PC, which has native split-screen for multiplayer and zombies. It will be forced into "Offline Mode
You cannot play Zombies this way (Zombies requires a host migration handshake). You also cannot play the classic "Wager Matches" (Gun Game, Sticks and Stones) offline via this method. Method 2: Using Console Commands (The "Unlock All" Trick) If you want to play Free-For-All or specific game modes without bots, you can use the developer console. This requires a tiny edit to your game files.
If you want to play offline with a PS5 or Xbox controller, do not use the native gamepad setting. Steam Input is better. Go to Steam > Settings > Controller > Enable Steam Input. Map your keys. The native Black Ops 1 controller aim assist is broken on PC; offline doesn't fix that. Conclusion: The Best Way to Play Offline in 2026 For quick bot matches: Use Method 1 (Combat Training) . It is 95% of the multiplayer experience. You level up, unlock attachments, and never see a cheater.
Use Method 2 (Console commands) . It takes 30 seconds to set up.