How many people are playing Quake II right now?

Single-playerMulti-playerPvPOnline PvPShared/Split Screen PvPCo-opOnline Co-opShared/Split Screen Co-opShared/Split ScreenCross-Platform MultiplayerFull controller supportSteam Trading CardsCamera ComfortPlayable without Timed InputSave AnytimeStereo SoundSurround SoundSteam CloudRemote Play TogetherFamily Sharing