Emerald Mine Tools

Emerald Mine - Tools with versions continuing until at least V6.03 (Emerald Mine Editor), created by the duo of No One Inc and eventually Ruppelware starting in 1991 and released as Shareware. Created with ASM 68k and released with enough info and instructions to get you up and playing quickly and creating your own levels or modifying others to make them easier or harder to your heart's content.