# grasscutters/grasscutter

**Attribution required: if you use, quote, or summarise this content, you must credit and link back to [awesome-repositories.com](https://awesome-repositories.com/repository/grasscutters-grasscutter).**

16,770 stars · 4,316 forks · Java · AGPL-3.0

## Links

- GitHub: https://github.com/Grasscutters/Grasscutter
- Homepage: https://grasscutter.io/
- awesome-repositories: https://awesome-repositories.com/repository/grasscutters-grasscutter.md

## Topics

`java` `kcp` `private-server` `server`

## Description

Grasscutter is a private game server emulator designed to replicate game backend logic and simulate core gameplay mechanics without the use of official servers. It functions as a system for simulating character progression, world entities, and general backend simulation to host a private instance of a specific anime game.

The project includes a game object management console for spawning entities and controlling player inventories within the simulated environment. It also provides a server configuration tool featuring a guided interface to generate and manage the settings and configuration files required for a private game host.

The software covers broader capabilities including player data administration, game server emulation, and the hosting of private backend environments. These tools allow for the management of character progression and the control of monster and entity behavior within the simulated world.

## Tags

### Game Development

- [Game Server Emulators](https://awesome-repositories.com/f/game-development/game-server-emulators.md) — Emulates original server-side logic and data structures to host a private instance of the game environment. ([source](https://cdn.jsdelivr.net/gh/grasscutters/grasscutter@development/README.md))
- [Game Simulation Environments](https://awesome-repositories.com/f/game-development/game-simulation-environments.md) — Provides a framework for simulating core gameplay mechanics and world entities without official servers.
- [Gameplay Loop Simulators](https://awesome-repositories.com/f/game-development/gameplay-loop-simulators.md) — Simulates core gameplay loops like combat and movement to test behavioral logic without requiring a full game engine. ([source](https://cdn.jsdelivr.net/gh/grasscutters/grasscutter@development/README.md))
- [Player Data Administration](https://awesome-repositories.com/f/game-development/player-data-administration.md) — Provides a server-side interface for managing character progression and player inventories to customize gameplay.
- [Administrative Consoles](https://awesome-repositories.com/f/game-development/administrative-consoles.md) — Provides a text-based administrative console for real-time manipulation of game objects and player states.
- [Entity Spawning Systems](https://awesome-repositories.com/f/game-development/entity-spawning-systems.md) — Programmatically triggers the appearance of monsters and entities at specific coordinates via an admin console. ([source](https://cdn.jsdelivr.net/gh/grasscutters/grasscutter@development/README.md))
- [In-Game Administrative Consoles](https://awesome-repositories.com/f/game-development/in-game-administrative-consoles.md) — Implements a server-side administrative interface for spawning entities and controlling player inventories.

### Software Engineering & Architecture

- [Entity Managers](https://awesome-repositories.com/f/software-engineering-architecture/architectural-design-patterns/object-oriented-foundations/game-logic-models/game-logic-controllers/entity-managers.md) — Implements a system to track and manipulate player inventories and character progression during runtime. ([source](https://cdn.jsdelivr.net/gh/grasscutters/grasscutter@development/README.md))
- [Configuration-Driven Logic](https://awesome-repositories.com/f/software-engineering-architecture/data-logic-injection/configuration-driven-logic.md) — Defines game behavior and item properties through external structured data files to avoid hard-coded logic.
- [Entity State Machines](https://awesome-repositories.com/f/software-engineering-architecture/state-machine-logic/lightweight-state-machines/automation-state-machines/entity-state-machines.md) — Uses server-side state machines to track the position and status of players and monsters.

### Web Development

- [Game Server Hosting](https://awesome-repositories.com/f/web-development/web-infrastructure-deployment/web-infrastructure-servers/web-server-hosting/headless-server-hosting/game-server-hosting.md) — Hosts server-side logic for multiplayer games within an isolated private environment independently of official servers.
- [Mock Backends](https://awesome-repositories.com/f/web-development/backend-development/mock-backends.md) — Simulates the authentication and data services required by the game client to boot into the game world.

### Data & Databases

- [Configuration Generators](https://awesome-repositories.com/f/data-databases/server-configuration/game-server-settings/configuration-generators.md) — Provides a guided interface to generate and manage the configuration files required to host a private game server.

### Development Tools & Productivity

- [Object Manipulation Consoles](https://awesome-repositories.com/f/development-tools-productivity/object-inspection-tools/game-object-browsers/object-manipulation-consoles.md) — Controls the appearance and behavior of monsters and entities within a simulated world via a console.

### Security & Cryptography

- [Concurrent Session Management](https://awesome-repositories.com/f/security-cryptography/identity-access-management/access-control/identity-role-management/concurrent-session-management.md) — Manages multiple simultaneous player connections and their associated authentication states.