Cysharp/MasterMemory

Health v2 · maintenance only

Adoption not part of the score

1829 stars · 124 forks observed · 2026-08-28

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

MasterMemory is a source-generator-based embedded typed readonly in-memory document database for .NET and Unity. It generates type-safe database structures from C# classes, offering extremely fast, allocation-free queries for write-once, read-heavy master data.

Use cases

• store game master data like item and character tables in Unity
• embed a fast read-only database in a .NET application
• replace SQLite for read-heavy lookup workloads
• run type-safe range and closest-match queries on in-memory data
• load large reference datasets quickly with MessagePack serialization
• validate master data with custom C# validators

When to choose

• your data is write-once and read-heavy
• you need zero-allocation, dictionary-speed lookups in .NET or Unity
• you want compile-time type safety and autocompletion for queries
• database size and load speed matter, such as in games or embedded apps

When to avoid

• you need to write or update data at runtime
• you require SQL queries or ad-hoc querying
• your dataset must be shared across processes or accessed over a network
• you need a full relational database with transactions

Facets

library · maturity active

database serialization search-engine databases developer-tools cross-platform game-engine dotnet in-memory-database source-generator embedded-database readonly-database messagepack unity game-development

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