Walmart offers Assassin's Creed: Rogue for PlayStation 3, bundled with Assassin's Creed: Black Flag for PlayStation 3, for $14.99. Opt for in-store pickup to avoid the $4.97 shipping fee. That's $5 under our April mention of just Assassin's Creed: Rogue and the best price we've seen for AC: Rogue alone. (It's also $14 under the best price we could find for these games purchased separately elsewhere.)
Update: Meanwhile, Assassin's Creed: Rogue Limited Edition for PlayStation 3 is available on its own for $9.99 with in-store pickup. (Shipping otherwise adds $4.97.) That's $10 under April's mention of the standard edition and the best we've seen for this game. (It's a low for either edition today by $9.) It includes the Siege of Fort de Sable and Ultimate Hunter Pack.