(Considering the linked section) that is more or less how Petra Engine[0] came to be - making a gamejam game[1] for MSDOS over a few weeks. Though while i did make it for that specific game, i always had in mind that i may want to use it for other games in the future too so i tried to make it more "generic" and keep the engine and game bits separate while avoiding too many game-specific stuff (didn't fully manage it though - in the end i've been removing PAP-specific things and a bunch of hardcoded stuff over the years whenever i feel like using it).

That said, despite making a bunch of demos[2][3][4][5] since 2021 when i made the game, i never made any game using it after that as i always lose interest - perhaps i do need to be making an engine from scratch to keep myself interested :-P.

[0] http://runtimeterror.com/tech/petra/ (note the version is very old and i've made a lot of improvements since then - this includes the Codeberg repository which i'll move somewhere else at some point)

[1] https://bad-sector.itch.io/post-apocalyptic-petra

[2] http://runtimeterror.com/pages/iv/images/44d7537fb719e00fdcd...

[3] http://runtimeterror.com/pages/iv/images/d22ff83dd5e5109e02e...

[4] http://runtimeterror.com/pages/iv/images/1da6a4bce430a8d8507...

[5] https://www.youtube.com/watch?v=zx9KmkTLcB0

So, you want to make a game engine (2023)