Doom

https://odamex.net We're hosting a server at QuakeCon and playing Doom 2 Horde mode via Odamex. All are welcome to join! If you have Doom 2, download Odamex, set up your controls, and then use the Odalauncher app to join the server. Odamex will download the files you need. Available for Windows, MacOS, and Linux. Playing until everyone chooses to leave!