World of Sea Battle

VS

Unturned

World of Sea Battle is an indie open-world naval action game with RPG and simulator elements, developed by Thera Interactive. While it features open-world and multiplayer tags, the lack of wide recognition, a major publisher, and mainstream coverage suggests a small but steady niche community. Its indie studio background and limited marketing mean the player base is likely in the low hundreds daily. I do not classify this as a true MMO as there's no clear indication of massive concurrent player interactions.

Unturned is a free-to-play survival sandbox game released in 2017 and known for its strong modding community. It retains a dedicated player base thanks to frequent updates and multiplayer support, but is past its peak. Based on current Steam charts and the typical retention for successful indie survival games, it's estimated to have around 15,000–20,000 daily active players across PC and consoles. Its multiplayer servers are large but not on the scale of traditional MMOs.