FiveM

VS

Tank Force

FiveM, released in 2016, is a popular modification framework for Grand Theft Auto V that enables custom multiplayer servers, especially for roleplay communities. Its active modding scene and the enduring popularity of GTA V have kept its playerbase strong, typically with hundreds of thousands of daily players. However, it's technically not an MMO as individual servers usually host dozens to a few hundred players, not a persistent shared world for thousands.

Tank Force is a tank combat multiplayer game released in 2017. While it incorporates elements of action, shooter, and strategy genres and offers online multiplayer battles, it is not a top-tier title with high mainstream visibility, nor does it come from a major publisher. Games in this genre and age bracket often have a modest but dedicated player base, particularly in Eastern Europe and on PC. Given its longevity and continued support, an estimate of 8,000 daily active players is reasonable.