For the most reliable connection, players often recommend hosting a game and having your friend find it manually rather than using direct invites. :
To play online (multiplayer co-op), you can either host a game for a friend or join an existing session. The game supports two-player co-op across all its main modes, including the story campaign, Endless mode, and Scramble mode. How to Play with Friends Orcs Must Die! 3 по сети
Crossplay is available but limited to specific platform groups: HOW TO PLAY MULTIPLAYER IN ORCS MUST DIE 3 For the most reliable connection, players often recommend