This playlists contains 36 of the 38 RetroArch/RetroAchievements supports for the Sega CD. Each game has the compatible version selected and all 36 have been opened in RetroArch to confirm it was recognized as having achievements. The set I used is based off the Redump 2022-11-20 04-50-31 DAT.
Two games not include because they are not part of the latest Redump set. Both are Homebrew.
Riley's Letter Recycle
Penn & Teller's Smoke and Mirrors