The party has purchased the main advert on the UK homepage of the video-sharing site, filling it with a video of leader David Cameron.
While YouTube users may be tempted by the Tories, the Liberal Democrats have what it takes in the eyes of Xbox owners. Lib Dem leader Nick Clegg came top with 30 percent of votes in a pre-election poll on the Xbox Live network, which can be accessed via the games console.
The poll took place between April 29 and May 4 and featured caricatures of the leaders themselves.
Tory David Cameron came second with 21 percent, while Gordon Brown and Labour took last place with just 18 percent of the votes.
However, of the 400,000 gamers that voted in the poll, 31 percent admitted they still didn't know which party to vote for.
"While the Xbox 360 LIVE survey is in no way intended to be statistically representative, given the enormous number of votes cast online over the bank holiday weekend, we believe our results provide a telling barometer of political attitudes amongst 18 to 30-year-olds nationwide," said Stephen McGill, director of Xbox entertainment.