Short answer
When developing robotic systems for industrial applications, choose Gazebo for robust Industry 4.0 simulations and Unity for advanced Industry 5.0 scenarios emphasizing visualization and human interaction.
- Field
- Modelling
- Source
- Applied Sciences (2025)
- Method
- Systematic Review
- Sample
- 65 articles
- Evidence
- Strong effect
Gazebo is the dominant simulator for Industry 4.0 due to its ROS compatibility, while Unity is emerging for Industry 5.0 owing to its advanced visualization and human-interaction features. This modelling research insight is drawn from a 2025 study published in Applied Sciences. Using Systematic review with 65 articles, researchers explored how this design variable affects real-world outcomes. The key design takeaway: When developing robotic systems for industrial applications, choose Gazebo for robust Industry 4.0 simulations and Unity for advanced Industry 5.0 scenarios emphasizing visualization and human interaction.
Unity and Gazebo: Leading ROS Simulators for Industry 4.0 and 5.0
Gazebo is the dominant simulator for Industry 4.0 due to its ROS compatibility, while Unity is emerging for Industry 5.0 owing to its advanced visualization and human-interaction features.
Applied Sciences · 2025
Key Findings
- 01Gazebo is the most used simulator in Industry 4.0, primarily due to its strong ROS compatibility.
- 02Unity is more prevalent in Industry 5.0 for its advanced visualization, human interaction support, and XR capabilities.
- 03The study examined the adoption of ROS and ROS 2, and identified complementary technologies for interoperability.
Application
Design takeaway
When developing robotic systems for industrial applications, choose Gazebo for robust Industry 4.0 simulations and Unity for advanced Industry 5.0 scenarios emphasizing visualization and human interaction.
How to apply
When initiating a new robotics design project, conduct an expert review of available simulators, prioritizing Gazebo for traditional automation tasks and Unity for human-robot collaborative or augmented reality applications.
Project actions
- 01When selecting a simulator for your design project, consider whether your focus is on automation (Industry 4.0) or human-robot collaboration (Industry 5.0).
- 02Investigate the specific ROS compatibility and visualization features of simulators like Gazebo and Unity.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Systematic methodology (SEGRESS, PICOC) ensures comprehensive coverage.
- +Focus on recent trends (2021-2025) provides up-to-date insights.
Limitations
The study's findings are based on published research and may not capture all emerging or proprietary simulation technologies. The focus on ROS-compatibility might exclude other relevant simulation platforms.
Reliability & validity
The systematic review methodology, using established frameworks like SEGRESS and PICOC, enhances the reliability and validity of the findings by ensuring a structured and comprehensive analysis of the literature.
Think critically
How might the rapid evolution of AI and machine learning impact the future dominance of specific robotic simulators in Industry 4.0 and 5.0 contexts?
Design Principles
"Select simulation environments that align with the specific technological paradigm (Industry 4.0 vs. Industry 5.0) and prioritize features like ROS compatibility, visualization, and human interaction capabilities."
Understanding the strengths of different simulation platforms is crucial for effective development and testing of robotic systems. Choosing the right simulator can significantly impact the efficiency of prototyping, the realism of testing, and the successful integration of robots into complex industrial environments.
What This Means for Your Design
For robot simulations, Gazebo is best for Industry 4.0 (automation) and Unity is better for Industry 5.0 (human-robot interaction and visuals).
How to use in your project
- 1.Reference this study when justifying the choice of simulation software for your design project, particularly if it involves robotics for industrial applications.
- 2.Use the findings to explain why a particular simulator was chosen over others, based on its suitability for Industry 4.0 or Industry 5.0 requirements.
Add to My Project
Quick Cite
Paragraph starter
The selection of simulation software is critical for the successful development of robotic systems. This review highlights that Gazebo is the predominant simulator for Industry 4.0 applications due to its robust ROS integration, while Unity is increasingly favored for Industry 5.0 due to its advanced visualization and human-interaction capabilities. Therefore, for design projects focused on traditional automation, Gazebo is recommended, whereas projects emphasizing human-robot collaboration or immersive user experiences should consider Unity.
Source
Applied Sciences
ROS-Compatible Robotics Simulators for Industry 4.0 and Industry 5.0: A Systematic Review of Trends and Technologies
journal · 2025
View sourceQuestions About This Research
- What does the research say about unity and gazebo: leading ros simulators for industry 4.0 and 5.0?
- When developing robotic systems for industrial applications, choose Gazebo for robust Industry 4.0 simulations and Unity for advanced Industry 5.0 scenarios emphasizing visualization and human interaction. Evidence: Applied Sciences (2025).
- Why does "Unity and Gazebo: Leading ROS Simulators for Industry 4.0 and 5.0" matter for design?
- Understanding the strengths of different simulation platforms is crucial for effective development and testing of robotic systems. Choosing the right simulator can significantly impact the efficiency of prototyping, the realism of testing, and the successful integration of robots into complex industrial environments.
- How can designers apply this research?
- When developing robotic systems for industrial applications, choose Gazebo for robust Industry 4.0 simulations and Unity for advanced Industry 5.0 scenarios emphasizing visualization and human interaction.
- What were the main findings?
- Gazebo is the most used simulator in Industry 4.0, primarily due to its strong ROS compatibility.. Unity is more prevalent in Industry 5.0 for its advanced visualization, human interaction support, and XR capabilities.. The study examined the adoption of ROS and ROS 2, and identified complementary technologies for interoperability.
- What research method was used?
- Systematic Review with 65 articles.
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2025 journal from Applied Sciences.
- What should I do differently in my next project?
- When initiating a new robotics design project, conduct an expert review of available simulators, prioritizing Gazebo for traditional automation tasks and Unity for human-robot collaborative or augmented reality applications.
- What are the limitations?
- The review is limited to peer-reviewed articles published between 2021 and 2025 and focuses specifically on ROS-compatible simulators.