Today's Far Cry 3: Blood Dragon leak is by far the most substantial yet: more than half an hour of footage from the beginning of the game has appeared online.

Replace Far Cry 3's lush green jungles with the surroundings of a dark, '80s sci-fi movie and you have Blood Dragon. Apparently due on 1st May, it's a standalone, downloadable shooter for PC, PlayStation 3 and Xbox 360.

Blood Dragon has a simplified levelling system with no skill tree as such, just a list of new abilities that are attained as players level up. Level 3 allows you to swap weapons and use iron sights faster, for example.

Players start the game with the ability to silently chain takedowns, breathe underwater indefinitely (thanks to your "cyber-lungs") and resist all damage falling from height.

The game starts off in a linear fashion, but a quick glimpse at an expansive world map suggests more open sections later on.

The footage appears to be from a full, working copy of the game - although Ubisoft is still to officially announce it. We're beginning to wonder if the continual leaks are part of some stealth marketing campaign.

We also have no idea how Blood Dragon fits in with anything else in the series, but it has laser-shooting dragons so does this even matter?

Ubsioft is currently taking down the footage from YouTube, so here it is from another site:

(Quick NSFW warning - the player's commentary is actually rather enjoyable, although colourful language is used throughout).

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