Here is the full list of all 15 JYDGE achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Upgrade four special weapons to max.
Upgrade four Gavel firemodes to the max.
Complete the game as the hero of the citizens.
Purchase all cyberware.
Get all medals for all missions of the Acts on Hardcore difficulty.
Get all medals for all missions of the Acts on Normal difficulty.
Find all collectibles.
Purchase all weapon mods.
Complete the third act.
Complete the second act.
Rescue 50 Citizens.
Get three medals in any mission in one difficulty.
Complete the first act.
Get all medals for all missions of the Acts on Grim difficulty.
Get all medals for all missions of the Acts on Nightmare difficulty.