gamemaker-server

Multi-threaded TCP game server for GameMaker:Studio (or any game engine).

Requirements

• Python 3.8+

Running the Server

Install dependencies:

uv sync

Start the server:

python -m gamemaker_server

Configuration

Configure the server using environment variables:

Variable	Description	Default
GAMEMAKER_PORT	Server port	64198
GAMEMAKER_MAX_CLIENTS	Maximum client connections	32

Example:

GAMEMAKER_PORT=8080 GAMEMAKER_MAX_CLIENTS=64 python -m gamemaker_server

Protocol

This server uses a raw binary protocol. GameMaker clients must use the raw networking functions:

• network_send_raw() - Send data without GameMaker headers
• network_send_udp_raw() - Send UDP data without headers

Standard network_send_packet() adds GameMaker-specific headers that this server does not parse.

Message Format

Messages use a simple 1-byte event ID prefix:

Event ID	Name	Description
0	PING	Echo request (server echoes back)
1	HANDSHAKE	Connection establishment
2	DISCONNECT	Clean disconnection