EA have also released a bunch of their games on Steam, mostly with discounts.
Given that you can probably play most of them on Origin Access, I’m not sure that they 100% count as bargains. They may also have been cheaper on Origin at some point.
But it’s basically your first chance to buy Titanfall 2 outside of Origin. (though I guess it’ll probably still need origin to launch).
(Not really a bargain at all, but the Quantic Dream games are now also on Steam, with a bundle. But they’re still pretty expensive and the discount is small. I do note that all 3 of them have demos though, and given that the Fahrenheit demo was better than the game, those might be worth a try)