Leveraging the Gameplay Ability System in Unreal Engine | Alex Coultas | NZGDC 2025

Value of the Information & Strength of the Argument

The talk provides valuable, practical insights into using the Gameplay Ability System beyond its typical combat applications. Coultas demonstrates how GAS can be used for puzzles, interactions, and narrative systems, showing its flexibility. He argues for the benefits of using tags and events for decoupling game logic, which improves robustness and maintainability. The argumentation is solid, supported by concrete examples from his project ‘Wanderer: The Fragments of Fate’. He also addresses limitations and provides workarounds, such as his plugin for blueprint support. The presentation is well-structured, moving from basics to advanced usage, and includes practical code snippets and diagrams.

Scientific Rigor, Source Quality, Title Accuracy

The talk is technically rigorous, with clear explanations of the system’s components and their interactions. Coultas references official Unreal Engine documentation and provides his own plugin as a resource. However, he does not cite external sources beyond the documentation, and the talk is based on his personal experience rather than formal research. The title accurately reflects the content, which focuses on leveraging GAS in Unreal Engine. The talk is aimed at developers with some Unreal Engine experience, but the content is presented clearly. No comments were provided for analysis.

The title accurately reflects the content: a detailed presentation on leveraging the Gameplay Ability System in Unreal Engine, with practical examples from the speaker's project.

8/10

The talk is a technical tutorial by an experienced developer, providing practical insights and code examples. It is grounded in real project experience (Wanderer: The Fragments of Fate) and references official Unreal Engine documentation. The content is coherent and well-structured, though it lacks formal citations and peer review.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 00:00Introduction and overview of the talk's structure.
• 02:00Explanation of the core elements of the Gameplay Ability System.
• 05:00Discussion of blueprint limitations and the need for C++ interfaces.
• 10:00Basic usage of gameplay tags and events for state management.
• 15:00Advanced scenarios: using gameplay effects for tag management and conditional activation.
• 20:00Example of using tag queries for complex conditions with multiple actors.
• 25:00Debugging tips and best practices for GAS.
• 30:00Conclusion and links to slides and plugin.

• Unreal Engine Gameplay Ability System Documentation — Referenced as the source for the system's components.
• Coultas' GAS Blueprint Plugin — Mentioned as a resource to overcome blueprint limitations.

• Unreal Engine Gameplay Ability System Documentation — The talk aligns with official documentation on GAS components and usage.