List of Verilog Simulators in Alphabetical Order by Name

source:http://en.wikipedia.org/wiki/

List of Verilog Simulators in Alphabetical Order by Name

Simulator Name	Author/Company	Languages	Description
Active-HDL/Riviera	Aldec	VHDL-2002, V2001, SV2005	A simulator with complete design environment aimed at FPGA-applications. Aldec licenses Active-HDL to FPGA-vendors, and the underlying engine can be found in the design-suites of those vendors. While ActiveHDL is a low-cost product, Aldec also offers a more expensive, higher-performance simulator called "Riviera."
Quartus II Simulator	Altera	VHDL-1993, V2001, SV2005	Altera's simulator bundled with the Quartus II design software. Supports Verilog, VHDL and AHDL.
Verilog-XL	Cadence	V1995	The original Verilog simulator, Gateway Design's Verilog-XL was the first (and only, for a time) Verilog simulator to be qualified for ASIC (validation) sign-off. After its acquisition by Cadence Design Systems, Verilog-XL changed very little over the years, retaining an interpreted language engine, and freezing language-support at Verilog-1995. Cadence recommends Incisive Enterprise Simulator for new design projects, as XL no longer receives active development. Nevertheless, XL continues to find use in companies with large codebases of legacy Verilog. Many early Verilog codebases will only simulate properly in Verilog-XL, due to variation in language implementation of other simulators.
Speedsim	Cadence Design Systems	V1995	Cycle based simulator originally developed at DEC. The DEC developers spun off to form Quickturn Design Systems. Quickturn was later acquired by Cadence, who discontinued the product in 2005. Speedsim featured an innovative slotted bit-slice architecture that supported simulation of up to 32 tests in parallel.
Incisive Enterprise Simulator('big 3')	Cadence Design Systems	VHDL-2002, V2001, SV2005	Cadence initially acquired Gateway Design, thereby acquiring Verilog-XL. In response to competition from faster simulators, Cadence developed its own compiled-language simulator, NC-Verilog. The modern version of the NCsim family, called Incisive Enterprise Simulator, includes Verilog, VHDL, and SystemVerilog support. It also provides support for the e verification language, and a fast SystemC simulation kernel.
SMASH	Dolphin Integration	V1995, V2001, VHDL-1993	SMASH is a mixed-signal, multi-language simulator for IC or PCB designs. It uses SPICE syntax for analog descriptions, Verilog-HDL and VHDL for digital, Verilog-A/AMS, VHDL-AMS and ABCD (a combination of SPICE and C) for analog behavioral, and C for DSP algorithms.
Super-FinSim	Fintronic	V2001	This simulator is available on multi-platform, claiming IEEE 1364-2001 compliance.
PureSpeed	Frontline	V1995	The simulator had a cycle-based counterpart called 'pure cycle'. FrontLine was sold to Avant!, which was later acquired by Synopsys. Synopsys discontinued Purespeed in favor of its well-established VCS simulator.
ModelSim('big 3')	Mentor Graphics	VHDL-2002, V2001, SV2005	The original Modeltech (VHDL) simulator was the first mixed-language simulator capable of simulating VHDL and Verilog design entities together. However, as the Verilog component of ModelSim is neither the fastest nor most fully featured simulator on the market, competition from Synopsys and Cadence, led to a continual decrease in ModelSim popularity.
SILOS	Simucad Design Automation	V2001	As one of the low-cost interpreted Verilog simulators, Silos III enjoyed great popularity in the 1990s. Simucad's most current version, Silos-X, is sold as part of a tool-suite.
Veritak	Sugawara Systems	V2001	It is low-cost and Windows-based only. It boasts a built-in waveform viewer and fast execution.
Verilogger Extreme,Verilogger Pro	SynaptiCAD	V2001,V1995	Verilogger Pro is a low-cost interpreted simulator based on Elliot Mednick's VeriWell code base. Verilogger Extreme is a newer, compiled-code simulator that is Verilog-2001 compliant and much faster than Pro.
VCS	Synopsys	VHDL-2002, V2001, SV2005	Originally developed by John Sanguinetti, Peter Eichenberger and Michael McNamara under the startup company Chronologic Simulation, VCS (Verilog Compiled code Simulator) was purchased by Synopsys, where development continued. Due to a strategic decision to support SystemVerilog (instead of SystemC), and the acquisition of Superlog (the forerunner to SystemVerilog), Synopsys/VCS was the first SystemVerilog simulator in the market.
CVC	Tachyon Design Automation	V2001, V2005	CVC is a Verilog HDL compiled simulator. CVC has the ability to simulate in either interpreted or compiled mode.
Z01X	WinterLogic	V2001,SV2005	Developed as a fault simulator but can also be used as a logic simulator.
ISE Simulator	Xilinx	VHDL-93, V2001	Xilinx's simulator comes bundled with the ISE Design Suite. ISE Simulator (ISim) provides support for mixed-mode language simulation including, but not limited to, simulation of designs targeted for Xilinx's FPGAs and CPLDs.

Some commercial simulators (such as ModelSim) are available in student, or evaluation/demo editions. These editions generally have many features disabled, arbitrary limits on simulation design size, but are offered free of charge.