Helldivers 2 is a third-person co-op shooter with a large fanbase, which means that servers can experience issues if too many people play at once. Therefore, you might need a quick fix for the "Quickplay not working" and "failed to join game lobby" errors.
Helldivers 2 How to Fix the 'Failed to Join Game Lobby' Error – Matchmaking Helldivers 2 Tips
Quickplay not working is one of the biggest Helldivers 2 errors, causing a 'Failed to join game lobby' issue. One thing you can do to fix the Quickplay error is to disable crossplay by following the instructions below. If you do this correctly, you won't be able to play with players from other platforms, but you will at least be able to play the game.
Related: Helldivers 2 System Requirements and File Size
While the quick fix is to disable crossplay, the whole point of the game is to play with friends who have different gaming platforms. The developers were aware of the issues players were having when attempting to join the game via Quickplay, so they uploaded a Helldivers 2 patch to Steam in an attempt to fix the problem. If you’re still having issues, try disabling the Helldivers 2 crossplay option.
