Gaming Abbreviations and Acronyms

1. ORC
   Office of Research Commercialization
2. ORC
   Open Roleplaying Community
3. ORCS
   Operator Replaceable Components
4. ORCS
   Orc Roleplaying Community Site
5. ORE
   One-Roll Engine
6. ORE
   One Roll Engnne
7. ORG
   Orgrimmar
8. ORG
   Orgrimmar (World of Warcraft City)
9. ORGS
   Online Reality Games
10. ORHMA
    Ontario Restaurant Hotel and Motel Association
11. ORP
    Open Role Playing
12. ORP
    Ogame Report Processor
13. ORPA
    Oceania Role Players Association
14. ORTA
    Olympic Roads and Transport Authority
15. ORTS
    Open Real-Time Strategy
16. OS
    Oh Shoot
17. OS
    Online System
18. OS
    Optimal Share
19. OS
    Original Source
20. OS
    Oak Sage

Last updated: May 2, 2025 — Total entries: 11,501