A new social network called Epsilon was launched on September 28, positioning itself as a European and sovereign alternative to major global social media platforms like Facebook or Twitter. The service has been featured in several French media outlets, including BFM, Ouest-France, and RMC. Epsilon claims to avoid "addictive algorithms"—the complex systems used by many platforms to keep users engaged—and to prioritize user privacy, a point that has drawn interest from European investors. Epsilon is described as a Mastodon instance, though it does not openly advertise its connection to the decentralized social network. Evidence of its affiliation with Mastodon includes its use of open standards like ActivityPub, a protocol that forms the basis of the fediverse, a network of interconnected social platforms. The platform’s source code also links to the Mastodon GitHub page. Although the directory of user profiles on Epsilon.social is not yet large, users can search for profiles across other Mastodon instances using Epsilon’s search feature. The "Trends" tab on Epsilon displays content from other fediverse-connected services, showing its integration into this broader ecosystem. Despite its branding as a new entrant, Epsilon faces strong competition within the fediverse. Several French Mastodon servers are already active, managed by organizations like Framasoft, April, and the Piaille association. Additionally, the main Mastodon server (mastodon.social) is based in Europe. Other European alternatives, such as W Social and Eurosky, also highlight their European origins. These platforms share similar values, such as privacy and decentralization, making the market for such services already quite competitive. Epsilon aims to raise between 50 and 100 million euros in investment, but the market already includes multiple similar services. This means that Epsilon must differentiate itself clearly to attract users and investors. Whether it can stand out in a crowded field of European-focused, privacy-conscious social networks remains to be seen.