Gats.io

VS

Scum

Gats.io is a browser-based action shooter game known for simple, quick multiplayer matches. As an ".io" game, it had moderate popularity around its launch but, like most browser shooters, its active player base has significantly declined over time. It does not offer a persistent world or massive scale characteristic of MMOs, but tends to attract a small, steady daily audience.

Scum is a multiplayer open-world survival game developed by Gamepires and originally entered Early Access in 2018. While it is not a full MMO, it supports servers with dozens of players (up to 64 per server). The game maintains a niche but dedicated following and is frequently updated; however, it has never reached large mainstream status. Based on long-term trends of similar survival games, its daily active player base is estimated to be in the low thousands, and this estimate would hold unless a major relaunch or expansion revitalized the player base.