orbit/orbit

Health v2 · maintenance only

Adoption not part of the score

1725 stars · 173 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Orbit is a virtual actor framework for the JVM (Java/Kotlin) for building distributed systems, originally developed by Electronic Arts. It provides location-transparent, always-on virtual actors ('grains') that simplify stateful distributed application development.

Use cases

• build a stateful distributed backend with virtual actors
• model game services with always-on actor grains
• implement location-transparent distributed state without manual placement
• replace manual actor lifecycle management in JVM microservices
• build reactive distributed systems on the JVM

When to choose

• you need virtual actor semantics on the JVM with automatic activation and placement
• you want a simpler alternative to raw actor toolkits for stateful distributed services
• you are maintaining an existing Orbit-based system

When to avoid

• you need a framework with active development and recent releases (last release was 2021)
• you need actors outside the JVM ecosystem
• you want a mainstream, widely supported actor framework like Akka

Facets

framework · maturity maintenance

concurrency microservices rpc middleware microservices backend developer-tools jvm cross-platform actor-model virtual-actors distributed-actors reactive grains

Member repositories

For agents

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