Name: Shovel Adventure
Link: https://greenwebsevilla.itch.io/shovel-adventure
Platform: Amstrad CPC

Source code included in the downloadable files.

PICO-8's official website has a bunch of FOSS games:
https://www.lexaloffle.com/bbs/?cat=7&carts_tab=1#mode=carts&sub=2

You can check the code in two ways:

- By opening the game you want and expanding the "code" option below the web player;
- By downloading the .p8.png file from the pink cartridge icon below the web player, loading the file in the (paid) PICO-8 development engine and checking the code from there.

If a game in PICO-8's site uses an open source license, it's usually listed to the right of the pink cartridge and the dropdown "code" option.
If it doesn't, you could also ask that developer what are the rights and limitations.

Survive the week

https://cperezgrin.itch.io/survive-the-week

Platform: Amstrad CPC

Source code is in the download option "Código Fuente y Documentación"

edit: had written the wrong platform

Off topic (hopefully) real quick, but I wonder if it'd be interesting to make a thread to list open source engines as well?

Every now and then, I come across such engines, but I forget to keep note of them and some times it can be hard to find them again.

SuperTux

Linux/Mac/Windows version:
https://www.supertux.org/download.html

Android port (made by another dev):
https://sourceforge.net/projects/libsdl-android/files/apk/SuperTux/

Gravity Defied
Platforms: Android (and iOS but I have not tested that one)

gdtr.net
f-droid.org/en/packages/org.happysanta.gd
github.com/gch1p/gravitydefied

"Trial racing mobile game. It was originally developed by Codebrew Software in 2004 for J2ME platform.
Codebrew has launched an Android version of the game in 2012, though it was totally remade. We are the ones who like classic version of Gravity Defied more, so we ported it to Android and iOS almost unchanged!

Gravity Defied Classic (as we've named our port) includes all features of the original Gravity Defied. In addition, we have collected more than 1000 levels mods made by fans since 2007. You can install any mod and switch between mods directly from the game menu."

Simple graphics (wireframes) but challenging and fun. Good stuff.

Monster RPG for Linux and Windows

https://nooskewl.itch.io/monster-rpg

License is included with the source code.

The two sequels also include their source code, but the games are paid and their sources are accessible only as part of their purchases.

Question, does bought Gog games mail out on CD... Or just Downloaded. First time user.

download only. and welcome to the party!

Pingus

A wonderfully addictive Lemmings-style puzzle game.


Download for Windows, Mac, Ubuntu, or Linux.

Signus: The Artefact Wars

Classic turn-based strategy war game similar to the old Battle Isle series.

thanks for responding
LynXsh.

And this download goes straight to a Steam account and not your PC, Correct?

straight to your PC.

Awesome thanks for your help.

Found another one after quite a while - Friday Night Funkin:
https://github.com/ninjamuffin99/Funkin