World War II Online VS Outriders

World War II Online is a very early MMOFPS released in 2001. It's notable for its persistent world and large map, but its age and niche audience have led to a decline in daily active players. The game still maintains a small, loyal player base, commonly measured in the low hundreds, thanks to its unique scale and historical appeal.

Outriders, released in 2021, is a co-op looter shooter published by Square Enix and developed by People Can Fly. The game launched with solid interest but saw player numbers drop off within the first year and has had minimal major content updates since. It's no longer prominently featured or discussed in gaming communities, suggesting a small but persistent dedicated fanbase. The lack of ongoing live service elements further reduces the active player pool.