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Interact System

Advanced Interaction, Marker, Sense & Inspect Framework for Unreal Engine

What Is Interact System?

Interact System is a high-performance, widget-component-free, and fully Blueprint-friendly interaction framework designed for Unreal Engine. It brings AAA-quality interaction mechanics to both single-player and multiplayer games while keeping performance extremely high.

Lightweight, modular, optimized — perfect for any UE project.

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Smart Interaction System

• Automatic forward tracing

• Focus / Unfocus events

• Press & Hold interaction types

• Actor-based data system (FInteractDisplayInfo)

• Powered by a universal interface (UInteractInterface)

Any actor can become interactable in just seconds.

Ultra-Fast Marker System (No Widget Components!)

The marker system is rendered entirely through LocalPlayerSubsystem, eliminating the performance costs of Widget Components.

Features:

• On-screen & off-screen indicators

• Auto-scaling by distance

• Clamp-to-screen logic

• 100% multiplayer ready replication

• Extremely optimized update loop (single subsystem tick)

Even hundreds of markers on screen — still smooth.

3D Inspect System

Let players rotate, zoom, move, and examine objects in a dedicated inspect viewport.

• Uses a custom AInspectActor

• Renders via SceneCaptureComponent2D

• Automatically disables player input during inspect

• Fully local; zero multiplayer issues

Just like modern survival, RPG and extraction shooter games.

Sense / Pulse System

A stylish, expanding decal effect that reveals interactable objects around the player.

• Expanding pulse animation

• Multi-sphere detect system

• Optional debug mode

• Cooldown support

Inspired by features seen in games like The Witcher, Cyberpunk 2077, and EFT.

Zone Interaction System

Create dynamic world interactions with three built-in zone behaviors:

1. Discovery Zone

• Shows XP, message, icon, sound, etc.

• Optional local or global remove

• Reset delay support

2. Cooldown Destroy Zone

• Starts cooldown when entered

• On finish → destroys itself

3. Cooldown Reset-On-Leave Zone

• Cooldown pauses when leaving

• If player doesn’t return → resets fully

• Highly dynamic area logic

Perfect for exploration, quests, survival mechanics, level design triggers and more.

Why Choose Interact System?

✔ No Widget Components → up to 300% better performance

✔ 100% Multiplayer compatible

✔ Fully modular — plug only what you need

✔ Clean, readable API

✔ Designed for AAA-quality interaction

✔ Blueprint ready, C++ optimized

Ideal For

• Survival Games

• RPG / Action Games

• Extraction Shooters

• Co-op & Multiplayer Projects

• Open World Exploration

• Anything requiring high-performance UI indicators