How to play Awesomenauts online in 2023
Go to this link in a web browser while steam is open and it will take you to steam console:
steam://nav/console
Copy & paste this command in the console and hit enter (3.2.8 version):
download_depot 204300 204301 8648355342919262350
Or for an older version:
download_depot 204300 204301 2465324734027999898
It will start downloading with no progress indicator, wait until it's finished (~2.7gb)
Rename your Awesomenauts folder (steam\steamapps\common) to, eg. Awesomenauts2,
Move the downloaded folder depot_204301 (steam\steamapps\content\app_204300) to \steamapps\common and rename it to Awesomenauts
Disable updates (Steam library - Right Click Awesomenauts - Properties - Updates - enable "Only update this game when I launch it" & "Never Allow Background Updates")
Launch Awesomenauts through Steam (not via the .exe)
Change the matchmaking region in the settings to worldwide
Start a game & invite friends, or "Join Game" via Steam chat
Enjoy!