|Start date||14 August 2010|
|End date||4 September 2010|
|Description||Castle Wars tournament|
The International Castle Wars Tournament was announced on 9 August 2010. It took place from 14 August 2010 to 4 September 2010. There were four groups which took part: A, B, C, D.
- Australia & Oceania
- Spanish Community
- Danish Community
- Portu-Brazilian Community
- French Speaking Community (Québécoise and French)
- Global Stars (Anyone whose country is not recognised)
- German Community
The competition is notable for the hijacking of several teams (notably the Australian Spanish Community and Global Stars teams) by a group known as the Castle Wars Community, which aimed to gain Jagex's attention by demonstrating the ease with which Castle Wars could be hijacked. The Castle Wars Community had been instrumental in the 11-0 demolition of UK/Ireland and the elimination of favourites USA, as well as Canada.