War Rock is a free-to-play multiplayer shooter first released in the mid-2000s, with its current publisher being Papaya Play. Although it had some popularity in its early years, it is now quite old for a shooter (over 15 years) and has a small, niche community. The genre (arena shooter) ages quickly without major updates, and Papaya Play is a smaller publisher. It's likely to have a few thousand active daily players today.