* [Cratis Chronicle v19.0.0](https://github.com/Cratis/Chronicle) – Event sourcing database for .NET with an immutable event store, real-time processing via reactors, reducers, and projections, and built-in management tooling.

* [EventStore v1.4.10](https://github.com/commanded/eventstore) – Event store implemented in Elixir using PostgreSQL for persistence.

* [Equinox 4.1.4](https://github.com/jet/equinox) – .NET event-sourcing libraries for stream-based stores with snapshots, caching, optimistic concurrency, and multiple backend providers.