What Is a Flight Simulator and How Do You Choose One?
A flight simulator is software that models an aircraft's behavior and the environment it flies in, letting you operate it from the cockpit rather than just steering a plane around a screen. Choose one by matching three things to your goal: how realistic you need the flight model to be, what hardware you already own, and how much add-on content exists for the aircraft and airports you care about. If you want to fly casually, almost any modern sim works; if you want to practice procedures or study an airliner in depth, realism and add-on depth matter far more than graphics.
What separates a simulator from an arcade flying game
The dividing line is what the software simulates versus what it simplifies.
- Flight model: A simulator computes lift, drag, thrust, and weight, so the aircraft responds to airspeed, angle of attack, and configuration. An arcade game usually maps your input to a canned turn or climb rate.
- Systems depth: Simulators model fuel, hydraulics, electrical buses, and navigation radios. Arcade games often reduce these to a throttle and a fire button.
- Environment: Real weather, air traffic control, and accurate airport layouts are typical of simulators and optional or absent in arcade titles.
- Failure and consequence: Stalling, over-speeding, or running out of fuel has a modeled result in a simulator.
That said, the boundary is not absolute. Many simulators include assists that make them behave more like games, and some arcade titles borrow realistic visuals. The practical test is whether the aircraft does something you did not directly command — that is usually a sign a real flight model is running underneath.
Match the simulator to what you actually want to do
| Your goal | What matters most | What you can ignore |
|---|---|---|
| Casual flying, sightseeing | Stable performance, easy controls, broad scenery | Study-level systems, precise flight dynamics |
| Realistic single-aircraft study | Accurate systems and checklists for one type | Huge aircraft catalog |
| Airline-style procedural flying | Navigation accuracy, ATC, airliner add-ons | Aerobatics and low-level handling |
| Professional or training-oriented use | Certified or high-fidelity modeling, instructor tools | Consumer add-on variety |
If you are unsure, start with the middle row. Learning one aircraft properly teaches you what the simulator is doing and makes every later choice easier.
Key factors when choosing
Platform: PC or console
PC gives you the widest range of add-ons, third-party tools, and hardware compatibility. Console versions are simpler to set up and run but typically accept a smaller, curated set of add-ons. If add-on choice is central to your plan, PC is the safer bet.
Realism level
Ask whether the aircraft you want is modeled as a simplified version or a full procedure trainer. The same simulator can host both, so realism is often a property of the add-on, not the base platform.
Hardware requirements
Simulators are demanding. Before buying, check the recommended specifications for the specific simulator and the add-ons you intend to run, not just the minimum. A machine that runs the base sim smoothly can struggle once detailed airports and complex aircraft are loaded. Budget for a joystick at minimum; a yoke, rudder pedals, and head tracking improve realism but are not required to start.
Add-on availability
This is where a simulator's long-term value often lives. Communities such as Flightsim.to host freeware mods, add-ons, and liveries for Microsoft Flight Simulator 2020 and 2024, covering aircraft, scenery, airports, and tweaks. A healthy freeware and payware ecosystem means you can expand the sim gradually instead of replacing it.
How add-ons and mods extend a simulator
Add-ons change what the simulator contains, not how it fundamentally works. Common categories:
- Aircraft: New types or higher-fidelity versions of existing ones.
- Scenery and airports: More accurate or more detailed locations.
- Liveries: Paint schemes for aircraft you already have.
- Tweaks: Adjustments to performance, weather, or interface behavior.
Freeware communities are a low-risk way to explore this. You can try an aircraft or airport at no cost, decide whether the realism level suits you, and only then consider paid alternatives. Note that freeware quality varies widely, and installation methods differ between add-ons, so read the specific instructions rather than assuming a single process.
Common beginner mistakes
- Underestimating hardware. Buying the simulator first and discovering the frame rate is unusable with add-ons installed.
- Buying add-ons before learning the base sim. You cannot judge whether an add-on is good until you know how the default aircraft behaves.
- Confusing graphics with fidelity. A beautiful cockpit can hide a simplified flight model, and vice versa.
- Skipping the controls. Flying with a keyboard limits what you can learn; a basic joystick changes the experience more than most software upgrades.
- Assuming all add-ons install the same way. Follow each product's own instructions.
A practical starting sequence
- Decide your goal from the table above.
- Check that your hardware meets the recommended, not minimum, specifications for the simulator you are considering.
- Install the base simulator and fly the default aircraft until you can take off, navigate, and land consistently.
- Identify the one aircraft or airport you most want, then look for a freeware version first.
- Add hardware only when a specific limitation is holding you back.
Following that order keeps you from spending on add-ons or equipment before you know what you actually need.