Age of Empires Online: Celeste Fan Project

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Star Wars: The Old Republic

Age of Empires Online: Celeste Fan Project is a fan-run revival of the original Age of Empires Online, which was discontinued by Microsoft. As a community project launched in 2017, it maintains a niche but active RTS player base, mostly composed of dedicated fans. While not as popular as mainstream RTS games, its weekend activity peaks and ongoing support likely keep daily active players in the low thousands range. It is not run by major publishers but has support from a dedicated fan community.

Star Wars: The Old Republic is a classic MMORPG launched in 2011 by BioWare and published by Electronic Arts. Although it had a large player base at launch, the numbers have declined over the years, especially since it's now over a decade old and several expansions have come and gone. However, it still maintains a loyal core community thanks to regular content updates and the strength of the Star Wars IP. As an MMORPG, it does meet the MMO criteria with a persistent online world and the ability to interact with thousands of players simultaneously.