Massacre
The massacre bonus in Diablo III lets a player who kills many monsters in a short timeframe have an experience bonus, to make gameplay more interesting.
Background
The D3 Team has said that inspiraiton for Diablo III includes adventure games and action games. In the case of the Monk, they have even taken inspiration from traditional arcade Streetfighter-style games, and the massacre bonus comes from these types of games.
Diablo 3 is set out to be very fast paced, and things like Health Globes are added to keep the pace high, while still requiring a measure of skill to play. Killing enemies one at a time isn't very hard, but it's part of the gameplay with "easy to learn, hard to master". If you want the extra added bonuses, you need to figure out how to kill enemies fast and in a rapid progression.
This massacre feature will likely also be tied in to Achievements at a later point in the development.
Experience bonus
When you kill a series of monsters in a short timespan, you get an one-off experience bonus that follows a very simple pattern: 5 experience per kill.
(A) = Assumed
- 5 Monsters = +5 Exp (A)
- 6 Monsters = +10 Exp (A)
- 7 Monsters = +15 Exp (A)
- 8 Monsters = +20 Exp (A)
- 9 Monsters = +25 Exp (A)
- 11 Monsters = +30 Exp (A)
- 12 Monsters = +35 Exp (A)
- 13 Monsters = +40 Exp (A)
- 14 Monsters = +45 Exp (A)
- 15 Monsters = +50 Exp (A)
- 16 Monsters = +55 Exp
- 17 Monsters = +60 Exp (A)
- 17 Monsters = +65 Exp (A)
- 17 Monsters = +70 Exp (A)
- 20 Monsters = +75 Exp
Development
The massacre feature was first shown at the BlizzCon 2008 gameplay demo, and has not changed much since then, as of September 2009.
Media
You can find pictures in the Diablo 3 screenshot and picture gallery:
Witch Doctor massacring monsters.