Put 4 Heroes Into A Party, Make Sure They Are All Level 0, And Choose The Darkest Dungeon As Your Dungeon.
- Starting This Dungeon Nets You The Achievement, But Dont Leave Yet!
- This Can Be Combined With The "Valiant sacrifice..." Achievement
Step 1
- Don't Bring Any Supplies With You
Step 2
- Fight The first Thing You See And "Let It" Kill Your Whole Party.
- Achievement Pops
Good Luck!