OpenGameAsset.net

Game Design Assets - Professional Templates & Concept Tools

📦 6 assets📅 Updated May 10, 2026
Behavior Designer - Behavior Trees for Everyone
ToolsAI

Behavior Designer - Behavior Trees for Everyone

### Elevate Your Vision with Professional Game Design Assets Behind every great game is a solid design foundation. Our **game design assets** collection is curated to help developers and designers bridge the gap between concept and execution. From detailed design document templates to mood-board kits and rapid prototyping tools, this collection provides the structural resources needed to organize your creative thoughts and build a cohesive experience. ### From Blueprint to Prototype Good design is iterative. We provide **game mechanics templates**, **flowchart kits**, and **level design blueprints** that allow you to map out your player's journey before a single line of code is written. These resources are perfect for solo developers who need to stay organized and for teams that require clear communication across departments. ### Key Features of this Design Collection: * **Documentation Templates**: GDD (Game Design Document) and TDD (Technical Design Document) structures. * **Mechanic Prototyping Kits**: Modular logic pieces for common game systems like inventory and combat. * **Concept Art Tools**: Brushes, palettes, and reference packs for visual development. * **Level Design Blueprints**: Grids, grey-boxing kits, and spatial planning tools. * **UX/UI Mockup Kits**: Wireframe components to design your game's interface flow. ### Design with Purpose Don't let your ideas get lost in chaos. Use these **professional game design resources** to give your project the structure it deserves. Whether you're building a simple puzzle game or a complex RPG, we have the tools to help you plan for success. **Explore game design assets** now and start building your masterpiece from the ground up!

Assets in this Collection

Behavior Designer - Behavior Trees for Everyone
ToolsAI

1. Behavior Designer - Behavior Trees for Everyone

Behavior trees are used by AAA studios to create lifelike AI, and with Opsive’s Behavior Designer you can bring that same proven approach to Unity. Behavior Designer is a professional behavior tree system designed for programmers, designers, and artists alike. It combines an intuitive visual editor

Behavior Designer - Formations Pack
ToolsAI

2. Behavior Designer - Formations Pack

Requires Behavior Designer (link) Behavior Designer - Formations Pack contains 14 different behaviour tree tasks focused on group formations with Unity's NavMesh or the A* Pathfinding Project. Agents can join and leave the formation at any time. The formation will dynamically respond to changes. Eac

Behavior Designer - Movement Pack
ToolsAI

3. Behavior Designer - Movement Pack

Behavior Designer - Movement Pack contains 17 different behaviour tree tasks focused on both 2D and 3D movement. In addition to covering all of the AI steering behaviors, some tasks provide unique functionality such as finding cover or hearing if an object is within range. Three tasks - flock, leade

Placer 2 - Procedural_amp_Manual Level Designer
Tools

4. Placer 2 - Procedural_amp_Manual Level Designer

--- discord --- [email protected] --- --- overview --- Placer 2 is an AAA quality level design tool. It is an improved version of a highly rated asset called Placer. This version brings in new, faster workflow, more polish, way better performance, full integration with unity terrain system an

Prefab World Builder – Easy Object Placement Tool & Level Designer
Tools

5. Prefab World Builder – Easy Object Placement Tool & Level Designer

Prefab Placement Pro: Fast, flexible prefab placement for Unity. Snap to grid, randomize rotation, adjust size, and align to surfaces ideal for efficient

Tutorial Designer
Tools

6. Tutorial Designer

Tutorial Designer saves you the work of extending your scripts and rewriting your Gamelogic, to built a Tutorial on top of it. Instead you can leave everything in place, and let this asset take care of it. It combines Visual Scripting, Workflow Design and Dialogue Creation in one piece. Put together