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Advanced Interaction System

Hydrolysis Studio - Blueprints - Jan 24, 2021

This pack contains an advanced interaction system with interactable objects, and fundamental needs of making an adventure game.

  • Supported Platforms
  • Supported Engine Versions
    4.24 - 4.27, 5.0 - 5.3
  • Download Type
    Complete Project
    This product contains a full Unreal Engine project folder, complete with Config files, Content files and .uproject file, which can be used as a template to create a new project.


This pack contains an advanced interaction system with interactable objects, dialogue system, inventory system, day-night system, flashlight, adaptive footstep and drop sound, camera occlusion fade, bobbing simulation, save & load system, gamepad support, input hints, etc. It can meet the fundamental needs of making an adventure game and allows you to creating an interactive world.




  • All done with blueprints and have been commented and properly arranged.
  • Almost every prop in the scene can be interacted.
  • Contains Graspable, Destructible, Draggable, Clickable objects.
  • Graspble objects can be grasped, released, thrown, rotated and have physical properties and drop sound to play with, you can customize the graps method to click or hold and initial distance, view and movement will be slowed down based on the mass of them.
  • Destructible objects can be grasped, thrown and broken into pieces. It is using Chaos of UE5, such as field system, geometry collection actors, etc.
  • Inspectable objects can be picked, put back, taken, rotated, zoomed, and observed with real-time dynamic depth of field. It contains widgets to show name and description or letter content. You can also add different dialogues.
  • Draggable double-swing door with drag and click interaction, it can be locked, and supports dialogue and cutscene.
  • Draggable cupboard and drawer, similar to the draggable door, with all features the door have.
  • Draggable switch allows you to attach the missing parts, drag or click to toggle, trigger lights or other objects, also with dialogue and cutscene.
  • Draggable switch with Graspable handle, you can break the switch by dragging the handle, particle and sound effects are included.
  • Clickable button and switch, which can be used to trigger lights, bomb, etc.
  • Dialogue system with subtitles for Inspectable and Draggable objects, you can apply different dialogue waves to them and customize play method (loop, random).
  • A simple inventory system is included, you can take Inspectable objects and deposite or place them, items can be stacked and will be shown on the screen.
  • Adaptive footstep or drop sound based on the different surface type.
  • Flashlight with smooth rotation, which can illuminate the surroundings in a dark environment.
  • Day-Night system, which allows you to toggle between day and night in your game world.
  • Dynamic head bobbing simulation, camera will shake slightly when your character is walking, jumping or landing.
  • Built-in dynamic Input Hints system and Crosshair switching, icons will be switched according to different devices and interactions.
  • Save & Load system for level transition, player character and interactable objects, like transform, is locked, is taken, is on, etc.
  • Fully support gamepad (controller).

Technical Details


  • Mouse & Keyboard
  • Gamepad


  • 50x blueprint class, 10x widget blueprint, 9x enumeration, 7x structure
  • 125x static mesh, 1x skeletal mesh
  • 7x destructible mesh (UE4), 8x geometry collection (UE5), 7x geometry collection actor (UE5)
  • 297x texture, 153x material, 36x material instance, 11x material function
  • 134x sound wave, 22x sound cue, 1x dialogue voice, 22x dialogue wave
  • 3x particle system
  • 2x level

Network Replication:

  • No


  • Windows / MacOS


  • HydrolysisStudio@Outlook.com