When these clients were actively developed, they were known for:
MatHax Envy is a premium (or semi-private) cheating software designed specifically for modern first-person shooters. Unlike public, free cheats that are detected within hours, the "Envy" branch of MatHax focuses on and driver-level bypasses . MatHax Envy Client Download
Place the downloaded MatHax or Envy .jar file into your .minecraft/mods folder. These clients are not compatible with Optifine. Safety & Security Risks When these clients were actively developed, they were