Air Rivals

VS

DayZ

Air Rivals (also previously known as Space Cowboy Online and later as Ace Online) is an older multiplayer sci-fi dogfighting shooter with RPG elements. Although it once had a loyal niche following, it is now quite obscure and player numbers have dwindled due to its age and lack of major publisher support. I estimate a few hundred daily active players globally, mostly in private servers or small remaining official instances.

DayZ is a well-known open-world survival game by Bohemia Interactive, released in late 2018. It remains popular within the survival genre and typically holds a strong concurrent player base, especially on PC with additional activity on consoles. Its age means it's past its peak, but it maintains a loyal community and steady content updates, resulting in an estimated 45,000 daily active players across platforms.