Here's a question I thought I would never ask here. What's a game engine that you know of that works on Linux? The requirements:

1. Works on Linux

2. Can port games to multi platform, ideally Windows, Mac OS, Linux, iOS, and Android. A subset of this is fine.

3. Not dying soon, currently in active development, and have some legit userbase.

4. Free to use, at least for non-commercial. I can worry about the commercial license later.

I have been exclusively using Linux these past few years, and recently I want to prototype a game. I first thought of using Unity, but it can only run on Windows or Mac. I gotta pay $99 just to download Leadwerks, even for the Indie version. I would use Unity, but I don't want to shell out another $600 just to buy a new Windows/Mac laptop, or dual-boot my current laptop with Windows.

What I am looking for is a game engine, a tool with UI that allows you to configure game object properties, level editor, and so forth. I am not looking for SDL or SFML, or Ogre API/SDK. I am not interested in programming in these. I just want to prototype a game.

Game Editor

Blender Game Engine

Godot

C4

Game Editor

Blender Game Engine

Godot

C4

Great list! Saw Blender Game Engine, but I wasn't so sure about it. Does it come preinstalled with Blender? Blender's official website doesn't seem to talk a lot about it.

Godot and Game Editor seem promising. I will check those out. Thanks!

@phantom

I totally forgot UE4 is on linux now!

@alnite

It's just in blender. You're gonna have to do some googling. Tough as phantom pointed out, UE4 man! Should be super quick to prototype with blueprints.

Is there a way to use UE4 without paying $19/month?