8BitMMO

VS

alt:V

8BitMMO is a persistent-world indie MMO first released in 2015, focused on building and sandbox multiplayer gameplay. As a niche, indie title that is nearly a decade old, it has a much smaller active community compared to its launch, but may still retain a dedicated base of dozens to a few hundred daily players.

alt:V is a multiplayer modification framework for Grand Theft Auto V, allowing custom servers and RP (roleplay) experiences. While the entire framework is not itself a game, popular servers using alt:V can attract several thousand daily active players across all instances. However, the game's overall audience is niche compared to FiveM, the leading GTA V RP framework. Its open-world and RPG modding scene supports retention, but the scale is modest.