World of Sea Battle

VS

IdleOn

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.

IdleOn (Legends of IdleOn) is a niche indie idle MMORPG released in 2020 by solo developer LavaFlame2. While 'indie' and 'idle' games generally have moderate daily activity compared to AAA titles, IdleOn maintains a loyal fanbase due to its unique persistent-world idle mechanics and multi-platform availability. Its activity is bolstered by regular updates and a dedicated community, but as a non-mainstream MMO, it likely sustains around 30,000 daily players at present.