COMPUTER games that show how competition affects the young won the top prizes in the ''Fight Corruption for a Brighter Hong Kong'' computer game design competition. The competition was organised jointly by the Hong Kong Computer Society and the Independent Commission Against Corruption. The winners for both the student group and open group categories received their prizes at the ICAC's 20th anniversary exhibition at the New World Plaza recently. The competition used computer games to try to show young people the evils of corruption, and the ICAC's role in fighting it. The winning games are being distributed to youth organisations throughout Hong Kong. First prize in the student group went to Wong Kwok-hung, 15, from Kwun Tong Maryknoll College, for his game ''Corruption City'', which featured seven levels of complexity. Players must answer questions to go through to the next level. He won an AST 386 PC. The open group was won by Li Chi-shing, a teacher at the Chinese University. His program, ''We Need You'', is similar: users must answer a series of questions to win the game. He won a similar configuration of computer equipment. Judy Lau, chairman of the competition's organising committee, said: ''With this competition, the computer society and the ICAC want to make young people aware of our activities aimed at stamping out corruption. ''The quality of software received for this competition shows that our aims are well understood, and that awareness of corruption among the younger generation is high.'' Runner up in the student group was David Lam of La Salle College, and in the open group, Kwok Koon-wang, Lo Wai-man, Chan Hoi-kai, and Cheung Ka-yung. They each received an IBM laser printer donated by Lexmark. In joint third place in the student group were Cheung Kam-fai from Kowloon Technical School, and Lung Hi-ka from King's College; and, in the open group, Chau Kwong-wa. They each received a copy of Microsoft Office, which includes Word, Excel, PowerPoint and Microsoft Mail. The competition's judges were legislative councillors Peter Wong Hong-yuen and Eric Li Ka-cheung, the ICAC's director of community relations, Eddie So, AST Asia-Pacific's managing director Philip Wong, and the president of the Hong Kong Computer Society,Yung Kai-tai. The competition was sponsored by AST Asia-Pacific, Lexmark International Hong Kong and Microsoft Hong Kong, all of which donated prizes. Microsoft also made its Visual Basic development software available to entrants at a reduced price.