2-pack suggestions

Hello humans.

unimportant storyline press A to skip
My sensei just transcended into a minmatar and took of in a rifter, leaving me a heritage of +/- 800.000 rupees (after expenses)
I could order takeout but strangely enough the Indian restaurant doesn't accept Indian currency.
So I offered it to Lord Gaben, who accepts everything from firstborn sons to plots of land on the Sun, half melted skittles and solid gold figurines of Ivy Valentine (don't tell my mom I have that). Gaben will now allow me to buy a 2pack of games on Steam.

Questlog
Give me suggestions on a 2pack, double pack or whatever it's called of a nice game so I can keep one for myself and gift one here.
Either I'm extremely stupid or it's the bitter truth one has to actually manually go out and find which games offer 2packs.
Bonuspoints for games never bundled and games discounted at the moment.
If you don't know anything you can always post a 2pac picture.

at least you tried
I already have Battleblock Theater