(F)OSS Libraries/Frameworks/Engines for Game Development

Elouin

A small list of (F)OSS Libraries/Frameworks/Engines for game development sorted by language.
This is nowhere near complete and suggestions for additions are welcome.

Basic

PS Tech - 3D game engine for gambas inspired by id tech engines
Gambas Tile System - tile engine for Gambas

C

libtcod - library for creating roguelikes
raylib - gamedev library
SAF - minimalist single-header game library

C++

Entropia Engine++ - cross-platform game and application development framework
O3DE - Open source, real-time 3D engine
OGRE - 3D graphics rendering engine
Urho3D - lightweight 2D and 3D game engine

Crystal

CrSFML - sfml bindings
raylib-cr - raylib bindings

Go

ebiten - 2D game library
oak - game engine
engo - 2D game engine
g3n - 3D Game Engine
termloop - Terminal-based game engine

Guile

Chickadee - game development library

Java

jMonkeyEngine - engine for 3D game development
libGDX - cross platform game development framework

JavaScript

Phaser - HTML5 game framework

Lua

LÖVE - 2D game development framework
LÖVR - framework for developing VR games
Minetest - An open source voxel game engine
Spring Engine - game engine for RTS games
Tic80 - fantasy computer for making, playing and sharing tiny games
Tofu Engine - self-contained game-engine for small-to-mid 2D projects

Pascal

Castle Engine - cross platform game engine
ZGameEditor - Minimalistic game engine and IDE

Python

Panda3D - framework for 3D game development
Pygame - SDL based framework
pyglet - library for game development and other visually rich applications
python-raylib - raylib bindings
Ursina Engine - 3D game engine/framework

Ruby

Gosu - 2D game development library

Rust

Bevy - data driven game engine
Fyrox - 2D and 3D game engine with an editor
ggez - game library with api similiar to LÖVE

Custom

easyRPG - RPG game making tool compatible with RPGMaker
Flare - Free/Libre Action Roleplaying Engine
Godot - complete game engine using gdscript
GDevelop - game engine using visual programming
GB Studio - retro game engine using visual programming

poVoq

Lua: Love2D and LOVR

poVoq

Panda3d for Python
jMonkeyEngine for Java

Peter

And maybe these:
Pascal (including Delphi/Object Pascal):
Castle Engine

Gambas:
Some builtin modules?

Technopeasant

Peter

When it comes to Gambas, there are two general approaches.

Making games within the graphical toolkits, most notably Qt 5 though GTK 3 is supported, using pictureboxes or drawing area controls (which I do)
Writing all the rendering and multimedia using SDL (as several games on the Gambas Farm do)

For the first, I am probably the most prolific coder in this space, so if it does not seem too immodest, I could just ask you list:

https://pigalore.miraheze.org/wiki/Gambas_Tile_System

As for the second, it is essentially similar to using raw SDL in C or Python or anything else. There are not any specific engines or libraries ala pygame that I am aware of. OpenGL (2.1 using the aged component, though 3 and later can be loaded externally) can be used from either an SDL window, or the graphical toolkits using a built in control (as my PS Tech engine does), to handle hardware acceleration.

https://pigalore.miraheze.org/wiki/PS_Tech

In general though Gambas is a very centralized language, which is a strength and a weakness, so rather than having third-party libraries you use the built-in components provided.

As for free software BASICs more broadly, there are also SDL and Allegro bindings for FreeBASIC, and there is a dedicated SdlBasic (as well as a Basic4GL, though that uses the ancient OpenGL 1.1 specification). These build on from the once quite vibrant QBaisc game development community, which the QB64 compiler targets most directly. Again these mostly seem to be integrated directly to the languages. There are one or two game engines for FreeBASIC listed on GitHub though.

This might also warrant a look for the Pascal section:
https://wiki.freepascal.org/Game_Engine

Peter

I just noticed it's missing C and C++ raylib.

Oh, and thx for coming up with this list.

Elouin

I only added the raylib bindings i tested and know are being maintained. Didnt wanted to add all the raylib bindings, because that would be a very long list... ^^'

But adding it as the c library it is is propably a good idea.

ntech_

Go

ebiten - A dead simple 2D game library for Go
oak - A pure Go game engine
engo - Engo is an open-source 2D game engine written in Go.
korok - korok.io golang game engine
g3n - Go 3D Game Engine (http://g3n.rocks)
termloop - Terminal-based game engine for Go, built on top of Termbox

Elouin

ntech_ thanks for the long list. didnt add korok since it seems dead.

poVoq

This seems to be a list of various Rust related game-dev libraries:
https://arewegameyet.rs/

mdtrooper

Another for custom:

https://easyrpg.org/

For C/C++ or Python to make Roguelikes:

https://github.com/libtcod/libtcod

Elouin

Technopeasant
Thanks for the links and the long explanation for them.
I also thought about "default" graphic toolkits/libraries like GTK and QT, but those are not made for game making, but more a tool you can bend to do so, so i decided to leave those out of the List.

Regarding game editor: I also tried to keep out things that are outdated and/or arent updated anymore, even if they still compile.

Technopeasant

Also, for custom, you could include Game Editor. It has not been updated since 2013, but it still launches and works (just tested it). There is also a Game Editor 2 being actively developed on a fresh code base.

http://game-editor.com/
http://game-editor.com/forum/viewtopic.php?f=2&t=14085

Technopeasant

Fair enough. We will see if this Game Editor 2 sees the light of day.

Adventure Game Studio is also free software these days, though as discussed elsewhere, has not had its IDE ported beyond Windows yet.

https://www.adventuregamestudio.co.uk/

Peter

Here's a game engine for Rust, it was named RG3D and is now renamed to Fyrox:

https://rg3d.rs/

toutiewa

lua
gideros http://giderosmobile.com/tools
defold https://defold.com/

poVoq

toutiewa Defold at least seems to be not under a FOSS compatible license.
And for Gideros I can't find any licensing information right now.

Kaetemi

The engine built for Ryzom Core is called NeL (the Nevrax Library). The documentation is now available again at https://wiki.ryzom.dev/nel. :)

deca12

OCaml is almost as fast as C, and IMHO far more simple than Python, which makes it a good choice for gamedev IMHO:
https://github.com/fccm/awesome-gamedev-ocaml

(please tell me if the correct name for this repo should be "Awesome OCaml Gamedev" or "Awesome Gamedev OCaml")

There are even 2 different syntaxes for the language, the traditional one that look like an ML style, or the Reason syntax that tries to be closer to something not to far from C/JS.