patsec/ot-sim

MITRE Caldera™ for OT Plugins & Capabilities

SCADAver: a Rust-powered, multi-protocol OT/ICS security framework for authorized labs featuring asset discovery, enumeration, controlled validation, simulators, and CLI, TUI, and web interfaces. Discover validate, and try not to cut off the water supply.

The primary objective of this project is to develop a cross-platform Python library capable of simulating the core fundamental functionalities of two common industrial automation OT (Operational Technology ) devices: PLCs (Programmable Logic Controllers) and RTUs (Remote Terminal Units).

Zero-hardware simulator for 28 industrial protocols — Modbus TCP/S7/OPC UA/BACnet/MQTT & more. Test SCADA, HMI & IoT gateway software without real PLCs. 零硬件仿真28种工业协议设备，测试上位机/SCADA/网关，开箱即用。

GRFICSv3 is a FREE and open source OT security lab with realistic networking and a 3D process simulation for training and learning ICS security

一个用于模拟EMS能源管理系统中关键设备行为的软件系统，主要用于测试和开发场景。系统支持多种工业通信协议（Modbus TCP/RTU、IEC101、IEC104、IEC61850、DL/T645-2007、DL/T698.45、DNP3、OPCUA），并且支持TLS单向/双向加密认证，可模拟真实工业设备（如PCS储能变流器、BMS电池管理系统、电表等）的数据交互，支持IEC61850建模

Sample OPC UA server with nodes that generate random and increasing data, anomalies and much more ...

Open ModSim is a Free Modbus Slave (Server) Utility

Simulate network operating systems in a programmatic and easy way.