A free game engine gives you the tools to build, test and publish a game without buying software first. No-code engines suit beginners and small 2D projects, while full engines handle 3D worlds and bigger teams. Read the licence before you start, because it decides what you can do with your finished game.
More people make games than ever, from students and hobbyists to small studios and brands building playable marketing. The engine you choose shapes how fast you learn and what you can ship.
Here are ten free game engines in no particular order, sorted alphabetically, from tiny open-source projects to industry giants. Each description comes from the engine's own website, re-checked today. If you're thinking of turning games into a business, my guide on how to build a gaming company covers the steps beyond the code.
Start by deciding 2D or 3D. It narrows the field straight away, and a small 2D game is the best first project for almost everyone. It's tempting to dream big, but you'll learn more from three finished little games than one huge one that never ships, and you'll have something to show people sooner.
Free game engines compared
In the free plan column, Yes means the tool's own site describes a free version or free plan, Trial only means a time-limited trial, and No means neither is stated. Free versions often come with limits, so check what's included before you rely on one.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| Bevy | Open-source Rust engine | Programmers who like Rust | Yes |
| Cocos Creator | Open-source engine and editor | Mobile and web games | Yes |
| Defold | Free cross-platform engine | Small, fast mobile games | Yes |
| GameMaker | 2D game engine | 2D games with an easy start | Yes |
| GDevelop | Open-source no-code engine | Making games without code | Yes |
| Godot | Open-source 2D and 3D engine | Indie games with no licence strings | Yes |
| O3DE | Open-source 3D engine | Large 3D worlds | Yes |
| Stride | Open-source C# engine | 3D games in C# | Yes |
| Unity | Game engine | Mobile and cross-platform games | Yes |
| Unreal Engine | 3D game engine | High-end 3D graphics | Yes |
Ten free game engines to look at
Bevy
Best for: Developers who want a free, data-driven engine written in Rust and are happy to code.
Cocos Creator
Best for: Developers making 2D and 3D games for mobile phones and browsers.
Defold
Best for: Developers who want a light engine for 2D games that are small to download and quick to load.
GameMaker
Best for: Beginners and indie developers making 2D games who want a free tier for non-commercial projects.
GDevelop
Best for: Beginners, teachers and marketers who want to build games with events instead of code.
Godot
Best for: Indie developers who want a free, open-source engine for both 2D and 3D games.
O3DE
Best for: Teams building detailed 3D games and simulations who want an open-source engine.
Stride
Best for: C# developers who want a free, open-source engine for 2D and 3D games.
Unity
Best for: Beginners and studios making games for mobile, PC and consoles who want a huge library of tutorials.
Unreal Engine
Best for: Developers aiming for high-end 3D graphics who want the same engine big studios use.
The licence that decides who owns your game
Here's the bit to read before you write a line of code. Godot's licence page says the engine is free and open-source software under the permissive MIT licence, and that you're free to use it for any purpose. Some other engines are free to start but have their own terms once a game earns money or a company grows.
None of that's a problem if you know about it on day one. It's only a shock when you find out after launch, so read the licence page of whichever engine you pick, and keep a copy of the terms that applied when you started.
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What to check in a free game engine
- 2D or 3D: is the engine strong at the kind of game you're making?
- Coding: do you need to code, and in which language?
- Platforms: can it export to the devices you want, such as phone, PC or web?
- Licence: what are the terms once your game is released?
- Learning material: are there tutorials and an active community?
How to finish your first game
- Pick a tiny idea you could finish in a weekend.
- Follow one beginner tutorial from start to end.
- Change the tutorial game into something of your own.
- Ask a friend to play it and watch where they get stuck.
- Export it and share it, even if it's rough.
Game-making mistakes beginners make
- Starting with a dream project. Build small games first.
- Switching engines constantly. Stick with one long enough to finish.
- No playtesting. Watch someone else play early.
- Ignoring the licence. Know the rules before release.
Need inspiration? My list of free PC games shows what small teams ship without huge studios behind them.
Do you make game engines? Tool makers can ask to be considered for a featured place on this list.
My plain advice on free game engines
Choose the engine with the best tutorials for the game you want to make, not the one with the most impressive trailer. You'll learn faster and finish more, and you won't spend your evenings stuck on problems nobody's written about.
And keep your first game tiny. Finishing something small teaches more than abandoning something huge. Once it's done, you'll know which engine features you're missing, and that's the right time to decide whether to switch.
Frequently asked questions
What is the best free game engine for beginners?
A no-code or 2D-focused engine is easiest to start with. Full 3D engines take longer to learn.
Can I make a game without coding?
Yes. No-code engines let you build games with visual events instead of code.
Are free game engines really free?
Many are free to use, but some have terms once your game earns money. Read each licence.
Can I sell a game made with a free engine?
Usually yes. Check the engine's licence for any conditions.
2D or 3D for a first game?
2D is simpler and quicker to finish for most beginners.
Which engines are open source?
Several, including engines under permissive licences that let you use them for any purpose.
Can I make mobile games for free?
Yes. Many free engines export to iPhone and Android.
Do I need a powerful computer?
Lightweight 2D engines run on modest machines. High-end 3D engines need more power.
How long does it take to make a game?
A simple game can take a weekend. Bigger projects take months or years.
Can businesses use game engines for marketing?
Yes. Small playable games and interactive demos are a fun way to engage customers.
