... Hm, that source post doesn't list Full Throttle: Remastered (but you did). Wonder why.
Oh, and what about Shadow Warrior Classic Redux and Spelunky, free for XP during Winter 2016 and Summer 2016 sales, respectively, being able to get the required amount without making any purchase?
I did include Full Throttle because it was given away for a limited time. Maybe Startrail forgot to add it to his list, even though he noted it himself in his post
And unfortunately, I don't know how the XP promotion works for Shadow Warrior Classic Redux and Spelunky. But Startrail did mention that Spelunky need $5 purchase
edit: By the way, may I ask Mount & Blade (†)?