# tranek/gasdocumentation

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5,620 stars · 962 forks · C++ · mit

## Links

- GitHub: https://github.com/tranek/GASDocumentation
- awesome-repositories: https://awesome-repositories.com/repository/tranek-gasdocumentation.md

## Description

This is a documentation and sample project for learning Unreal Engine's Gameplay Ability System (GAS), focused on building networked gameplay abilities that synchronize correctly in a multiplayer environment. The project provides a step-by-step guide to implementing GAS, covering the core concepts of defining gameplay mechanics through a data-driven attribute system that separates ability logic from character state management.

The documentation explores key architectural patterns for multiplayer ability design, including a predicted-action network model that uses client-side prediction and server authority reconciliation to synchronize ability execution across players. It covers a tag-based ability filtering system for controlling activation, cooldowns, and interactions, as well as a gameplay effect stacking system for managing temporary and permanent attribute modifications with duration, magnitude, and priority rules. The project also demonstrates how to orchestrate complex ability sequences through an ability task graph that chains asynchronous tasks like delays and animations into a directed execution graph.

The sample project exposes the gameplay ability system to designers through Unreal Engine's Blueprint visual scripting, enabling rapid iteration without C++ changes, while maintaining server-authoritative replication to ensure gameplay integrity across networked players. The documentation and accompanying sample project serve as a comprehensive learning resource for implementing networked gameplay abilities, attributes, and effects in Unreal Engine.

## Tags

### Education & Learning Resources

- [Gameplay Ability System Documentation](https://awesome-repositories.com/f/education-learning-resources/gameplay-ability-system-documentation.md) — Learning the Unreal Engine Gameplay Ability System through documented examples and step-by-step implementation patterns.
- [Gameplay Ability System Tutorials](https://awesome-repositories.com/f/education-learning-resources/gameplay-ability-system-tutorials.md) — Serves as a comprehensive step-by-step tutorial for learning Unreal Engine's Gameplay Ability System. ([source](https://github.com/tranek/GASDocumentation#readme))
- [Multiplayer Ability Samples](https://awesome-repositories.com/f/education-learning-resources/multiplayer-ability-samples.md) — Ships a sample project demonstrating networked gameplay abilities that synchronize across clients.

### Part of an Awesome List

- [Guided Project Tutorials](https://awesome-repositories.com/f/awesome-lists/devtools/real-world-applications/guided-project-tutorials.md) — Provides a step-by-step guide to implementing Unreal Engine's Gameplay Ability System in a multiplayer project.

### Game Development

- [Client-Side Prediction Systems](https://awesome-repositories.com/f/game-development/client-side-prediction-systems.md) — Implements client-side prediction with server reconciliation for synchronizing ability execution across networked players.
- [Attribute-Based Frameworks](https://awesome-repositories.com/f/game-development/game-engines-frameworks/game-engines/game-development-engines/gameplay-extensions/attribute-based-frameworks.md) — Provides a data-driven attribute system that separates ability logic from character state management.
- [Gameplay Ability System Implementations](https://awesome-repositories.com/f/game-development/game-engines-frameworks/game-engines/game-development-engines/gameplay-extensions/gameplay-ability-system-implementations.md) — Implements networked gameplay abilities and effects using Unreal Engine's Gameplay Ability System framework.
- [Blueprint Visual Scripting Integrations](https://awesome-repositories.com/f/game-development/game-engines-frameworks/game-engines/game-development-engines/gameplay-extensions/gameplay-ability-system-implementations/blueprint-visual-scripting-integrations.md) — Exposes the gameplay ability system to designers through Unreal Engine’s Blueprint visual scripting, enabling rapid iteration without C++ changes.
- [Gameplay Extensions](https://awesome-repositories.com/f/game-development/game-engines-frameworks/game-engines/game-development-engines/gameplay-extensions.md) — Develops custom gameplay mechanics and systems using Unreal Engine's built-in gameplay framework components.

### Security & Cryptography

- [Gameplay Tag Filters](https://awesome-repositories.com/f/security-cryptography/application-and-system-security/browser-security/content-filtering-blocking/content-filtering/interactive-element-removers/schema-based-tag-filters/gameplay-tag-filters.md) — Uses a hierarchical tag system for controlling ability activation, cooldowns, and interactions.

### Software Engineering & Architecture

- [Stacking Systems](https://awesome-repositories.com/f/software-engineering-architecture/application-lifecycle-management/configuration-management/configuration-interfaces-and-editors/gameplay-effect-editors/stacking-systems.md) — Ships a stacking system for managing temporary and permanent attribute modifications with priority rules.
- [Game State Replication](https://awesome-repositories.com/f/software-engineering-architecture/client-server-architectures/game-state-replication.md) — Ensures gameplay integrity by executing critical ability logic on the server and replicating results to clients.
- [Ability Task Graphs](https://awesome-repositories.com/f/software-engineering-architecture/dynamic-task-graphs/ability-task-graphs.md) — Implements a task graph system for orchestrating complex ability sequences with asynchronous gameplay tasks.
- [Networked Ability Patterns](https://awesome-repositories.com/f/software-engineering-architecture/design-pattern-implementations/networked-ability-patterns.md) — Documents design patterns for networked gameplay abilities with client-server latency compensation.

### Web Development

- [Gameplay State Synchronization](https://awesome-repositories.com/f/web-development/multiplayer-synchronization/gameplay-state-synchronization.md) — Synchronizes gameplay abilities, attributes, and effects across clients and server in a networked environment.
- [Ability Synchronization](https://awesome-repositories.com/f/web-development/multiplayer-synchronization/multiplayer-session-synchronizers/ability-synchronization.md) — Provides patterns for building networked gameplay abilities that synchronize correctly across clients. ([source](https://github.com/tranek/GASDocumentation#readme))