F1 2015 gameplay of Hamilton in his Mercedes F1 W06 Hybrid

"As it is, it's simply not living up to the expectation that both series and studio have shown in previous titles. The lack of content and polish is reason for the low score."

Arkham Knight nudged out as latest Codemasters title races in.

Watch as the British driver races around Monaco.

Vettel races his Ferrari SF15-T.

"We'll evaluate what people actually like - what they are playing, what features do they like the most," says game director.

Codemasters' game will be available later this week.

Official release confirms new July 10 launch date.