openjazz VS luxtorpeda

For proof you can read this github issue where one of the top contributors mentions that OpenJazz has no saving, since they want saves to be compatible with the original game, but the save format is encoded and needs to be reverse engineered first (means that they don't have the source of the original)

OpenJazz - Open source reimplementation project for Jazz Jackrabbit 1.

There's openjazz at least, if not an official port.

OpenJazz - Jazz Jackrabbit 1

There is also OpenGothic. Which can be used standalone or through Luxtorpeda.

Detect zip automatically instead of metadata prompt, update to v2 json by @d10sfan in https://github.com/luxtorpeda-dev/luxtorpeda/pull/210

Bit late but luxtorpeda has gzdoom as an option along with qzdl for launching with mods. You just gotta install protonup-qt from the discover store in desktop mode. A quick YouTube/Google search can show you how but that's the rough gist of it.

I use ProtonUp-Qt to get different Proton versions. You can find it there. You could also manually install Lux. Then just select it from the Compatibility tools.

try using Luxtorpeda to install ECWolf to play it instead

Released a new luxtorpeda-dev client (https://github.com/luxtorpeda-dev/luxtorpeda/releases/tag/v63)

There's a project called Luxtorpeda which acts as a compatibility layer in Steam but instead of running the game through Proton, it will download and run it with native engines and source ports. So if you enable it with classic Doom it will pop up with a dialog asking which port to play with (GZDoom, doomsday etc) and it will count towards your Steam play time, enable the Steam overlay etc. Keeps the engine up to date and works with lots of other games with open source ports too.