[Feature Request]: Integration with RetroAchievements

[Shatur]

Feature Details

RetroAchievements is a FOSS service that integrates achievements into old games. It was originally designed for emulators, but it has started adding achievements to standalone games. I think SuperTux would be a perfect fit 🙂

Feature Purpose

I think achievements allow players to explore interesting things in the game and introduce interesting challenges. I think this will improve user experience by a lot and bring many new players since the game will be listed on RA website.

Concept Screenshots

No response

Guidelines For Reporting Issues

• I have read https://github.com/SuperTux/supertux/blob/master/CONTRIBUTING.md#bug-reports.
• I have verified this isn't a request that's already been submitted as an issue.
• I have verified this isn't a discussion, or an issue with the game, but rather an actual feature request - a currently non-existent, but desired feature.
• In this request, I have only included details about one (1) desired feature.
• If I make a mistake while submitting this request, I agree to use the "Edit" feature to correct it, instead of closing this issue and opening a new one.

[rttyg46305Unj]

That would be pretty cool!