Dragon Age: Origins is free on Origin
But you need to download it by the 14th.
Dragon Age: Origins is the latest free offering in EA's On the House promotion wherein it gives away titles at no cost on Origin.
This is a limited time offer, however, so you need to download it by 14th October.
This should help players familiarise themselves with BioWare's series before Dragon Age: Inquisition arrives on 21st November in the UK (and 18th November for North Americans).
The other free On the House title currently in effect is Bejeweled 3, which is available until 28th October.