Industrial Robot Simulation Software Compared

Pick the Simulator by Brand Affinity First

Industrial robot simulation software falls into two groups. Vendor-locked tools ship from the arm builder and only load that builder's controllers: ABB RobotStudio, FANUC ROBOGUIDE, KUKA.Sim, and Yaskawa MotoSim EG-VRC. Brand-agnostic tools load a library of arms from every major vendor: RoboDK, Dassault Delmia, Visual Components, and open-source Gazebo.

The Bot Scout buying test asks a single question before any download: is this plant standardizing on one arm brand for the next five years, or will it mix ABB, FANUC, KUKA, and Yaskawa on the same floor. A single-brand plant gets the deepest fidelity and the shortest path to real-controller code from the vendor tool. A mixed-brand plant pays twice for that path and should look at RoboDK or Visual Components instead.

The second question is what the simulator is for. Offline programming and reach studies are handled by every tool on this list. Full line design with conveyors, humans, and discrete-event throughput is the Delmia and Visual Components lane. ROS-based mobile-manipulator research is the Gazebo lane.

What RobotStudio, ROBOGUIDE, KUKA.Sim, and MotoSim Actually Cost

Vendor simulators publish very little on a public price page. ABB's RobotStudio page lists a free basic license for offline programming after registration, with paid Premium and PowerPacs modules quoted through an ABB channel partner rather than posted publicly. Industry integrators such as Axis New Jersey list annual RobotStudio subscription bundles in the low four figures per seat, but the authoritative number comes from an ABB quote.

FANUC ROBOGUIDE is sold through FANUC America and its distributors on a per-seat perpetual license with annual maintenance; FANUC does not publish a list price and directs buyers to a distributor for a quote. KUKA.Sim comes in Tech and Pro tiers with the Pro tier bundling KUKA OfficeLite (the virtual controller); KUKA also quotes through partners and does not publish a rate card. Yaskawa MotoSim EG-VRC is licensed per seat through Motoman distributors with no published list price.

The honest read is that any vendor-simulator budget above the free tier requires a quote, and the number depends on whether the seat includes the virtual controller, whether add-on packages such as painting or arc welding are needed, and whether the buyer already owns robots from that brand. Treat every four-figure number from a reseller page as an estimate and confirm with the vendor before committing.

The Free-Tier Trap Buyers Fall Into

Every published free tier on this list has a catch worth naming before it becomes a surprise. ABB's free RobotStudio covers offline programming with a virtual controller but paints, arc-welding, machining, and cutting workflows require paid PowerPacs. RoboDK's 30-day trial is time-limited on the full feature set and then drops to a limited free education mode that blocks commercial use.

Visual Components offers a 30-day trial through its download form and then requires a commercial license. Gazebo is genuinely free and open source, but the labour cost of writing URDF or SDF models for a specific commercial arm, wiring the controller interface, and validating cycle time against a real robot is real, and it is what buyers underestimate.

The pattern The Bot Scout sees from buyers: the free tier proves the concept, then paid modules or a full commercial seat becomes the actual purchase once someone wants to hand a program to production. Budget the paid path from day one and use the free tier for evaluation, not for shipping code to the floor.

• Confirm which controller versions the free tier actually loads before installing.
• Read the trial license terms for commercial-use restrictions before letting a paid project touch the file.
• Ask the vendor which add-on packages a specific application (arc, spot, paint, palletizing) requires.
• For open-source Gazebo, budget engineering time to build and validate the robot model itself.
• Get the quote for the paid tier before the free tier expires, not after.

Offline Programming vs Digital Twin: Two Different Purchases

Offline programming means writing motion code on a laptop that runs on the real controller with minimal touch-up. RoboDK, RobotStudio, ROBOGUIDE, KUKA.Sim, and MotoSim all do this well for their supported arms because they each ship a virtual controller that speaks the real language: RAPID for ABB, TP for FANUC, KRL for KUKA, INFORM for Yaskawa.

A digital twin means simulating the whole cell or line, including conveyors, PLC logic, human operators, part flow, and discrete-event throughput. Delmia and Visual Components sit in this lane; the trade is that their motion fidelity for any single arm is not always as tight as the vendor tool for that same arm.

Gazebo is a research and mobile-robotics simulator with a physics engine and strong ROS integration. It is the right tool for autonomous mobile robots, custom research arms, and academic work, and the wrong tool for validating a production job on a KR C5 or R-30iB Plus controller before the arm arrives on the floor.

The decision is not which tool is best but which purchase the plant is actually making. A cell integrator writing programs to hand to a maintenance team wants the vendor tool. A line planner deciding where to put the arms wants Visual Components or Delmia. A research lab wants Gazebo.

What to Verify Before You Sign the PO

The specification page is not the contract. Two simulators can both claim to support a controller family and only one will actually run the customer's exact controller revision without paying for an upgrade.

The concrete checklist is short: name the controller model and firmware revision, list every add-on package the application will need, confirm whether the seat is node-locked or floating, and get the maintenance renewal price on paper before agreeing to year one.

The pattern that catches buyers is a first-year quote that looks competitive and a year-two maintenance number that resets the math. Ask for both before signing.

• Name the exact controller model and firmware the plant runs today.
• List every add-on the application needs (arc, spot, paint, palletizing, machining, vision).
• Confirm node-locked vs floating license and how many concurrent seats the team really needs.
• Get the year-two maintenance or subscription renewal price in writing before year one.
• Ask whether the license transfers to a replacement laptop and how long re-activation takes.