1. MMORPG CASE STUDY PRESENTED BY HYAE NA KO GLASSICK World of Warcraft “Corrupted Blood”

2. Presentation Outline WoW System Requirements WoW Gameplay basics Origin of “Corrupted Blood” The Corrupted Blood Incident Player Response Developer’s Response

3. WoW System Requirements Microsoft Windows Windows XP, Vista, or 7 Intel Pentium 4 or AMD Athlon XP 1500+ 1300MHz 512 MB+ RAM (1GB for Vista) 32 MD 3D video card 15 GB free HD space DVD drive Broadband internet connection Mac OS X Mac OS X 10.4.11 or newer 1600 MHz or higher G5 or Intel Core Duo processor 1 GB RAM+ ATI or NVIDIA video card with 64 MB Video RAM 15 GB free HD space DVD drive Broadband Internet Connection

4. WoW Gameplay Basics P2P – Pay to Play 1 st or 3 rd person view Customizable Avatar PVP & PVE, RP & RP- PVP (Divided by Realms) Dungeons & Raids Expansion Kits (Wrath of the Lich King, etc.)

5. Origin of “Corrupted Blood” September 2005 release of Zul’Gurub raid instance (20 man) New boss – Hakkar the Soulflayer Health: 710 000 Debuff Skill: Corrupted Blood (Deals 263-337 damage every 2 seconds & infects nearby players) designed with self- propagating code

6. The Corrupted Blood Incident “… a disease called "Corrupted Blood," intended merely as a short- term, short-range annoyance - but afflicted players were able to teleport back to large population centers, effectively starting a quick- spreading epidemic, leaving central hubs littered with bones and covered in blood as players dropped dead left and right.” (Gamasutra - GFH: The Real Life Lessons Of WoW's Corrupted Blood) Started in Archimonde Realm – spread to at least 2 others NPCs unaffected but infected

7. Player Response Griefers deliberately infected themselves and pets before entering cities. (Character death = 10% reduction to equipment durability) Panicked players fled to uninfected areas of the Realms. Players with healing capabilities volunteer to heal others in infected areas. Responses closely modeled real-life reactions to epidemics.

8. Developer’s Response Hard-reset of servers New patch to limit area of Corrupted Blood to the dungeon Inspired for potential future events