Axion Playground

The Axion Playground lets you experiment with schema definitions and see generated code in real-time.

Try It Now

Features

• Live Editing: Write or modify Axion schemas with full syntax highlighting
• Code Preview: See generated C# and TypeScript code as you type
• Examples: Learn from pre-built examples covering common patterns
• Copy Code: One-click copy of generated code

Syntax Guide

Basic Types

Axion Type	C# Type	TypeScript Type
i8, i16, i32, i64	sbyte, short, int, long	number, bigint
u8, u16, u32, u64	byte, ushort, uint, ulong	number, bigint
fixed	DFixed64	number
bool	bool	boolean
string	string	string
Vec2, Vec3, Vec4	DVector2, DVector3, DVector4	{ x, y, z }
Quat	DQuaternion	{ x, y, z, w }

Entity Definition

entity Player {
    @key id: i64       // Primary key (required)
    name: string       // Player display name
    score: i32         // Current score
    position: Vec3     // 3D position (deterministic)
}

Component Definition

component Health {
    current: fixed     // Current health (Q32.32 fixed-point)
    maximum: fixed     // Maximum health
    armor: fixed       // Damage reduction
}

Enum Definition

enum GameState: u8 {
    Waiting = 0,
    Playing = 1,
    Paused = 2,
    Finished = 3,
}

Annotations

Annotation	Purpose
@key	Marks primary key field
@replicated	Field is synchronized over network
@authority(server)	Only server can modify
@rpc(direction)	Remote procedure call
@indexed	Create database index

Coming Soon

• Full Compilation: Complete Axion-to-C# compilation via WASM
• Validation: Real-time schema validation and error messages
• Shareable Links: Save and share playground sessions
• More Languages: Rust, Go, and other target languages