Do you know a Game on Steam Store who got Multiple Packs available?

space farmers?

https://steamdb.info/search/?a=sub&q=4-pack
https://steamdb.info/search/?a=sub&q=3-pack
https://steamdb.info/search/?a=sub&q=2-pack

;)

P.S: sometimes it's cheaper to buy them individually; especially when the games are severely discounted as the multi-packs sometimes aren't discounted or have a discounted value that still ends up costing more than buying the same game multiple times (one at a time). Also sometimes you aren't allowed to buy the multi-packs if you already own the game. I think it depends on each individual game though & whether it's the same game multiple times or a bundle of games (portal or left 4 dead franchise) where you can't buy the cheap bundle pack if you already own one or more of the games in question.

P.P.S: you can often get multi-packs of games via steam key stores (humble, bundle stars, greenmangaming, etc) who often do decent discount deals compared to steam itself, however they are keys, not gifts.

Payday 2
Portal 2

Quake Con 2016 Pack :) and Quake Con Packs from the past were nice too :) if u want nice discount u can get those and giveaway for nice points :D

https://steamdb.info/search/?a=sub&q=four+pack
add this too, ambidot's query does not provide all-games