Deleted

Bad company 2 - 2,50 Euro, not sure it's price in dollars. // nice single and amazing MP
The Binding of Isaac: Rebirth - damn, i love this game

I'm having a lot of fun with Space Engineers at the moment.

http://store.steampowered.com/app/357300/ meyk it snaykburds

http://store.steampowered.com/app/263960/ this game has multiplayer in case rainbow six siege doesn't let you :(

(only helpful if you like puzzle games and have a friend, probably)

Assault android cactus

Compare the prices to GreenManGaming but make sure you take the extra 20% discount on GMG into account because GMG are cheaper for a number of games compared to steam. e.g. Wolfenstein the New Order is $7.20 on GMG compared to $8.99 on Steam.

Postal 2 and Paradise Lost Expansion

Here you can find some interesting recommendations ;)

Talos Principle. With Cats!

Borderlands 2 goty

that one was easy

http://store.steampowered.com/app/1002/

plus youll still have like $7 left !

it has multiplayer too! not sure about how active its community is , but its (imo) by far the best ragdoll simulator on steam atm !

I don't know your taste but I'll suggest 4 games I rly liked.Metro bundle + Witcher 1&2 [11.49€] plus you will have spare change for more games.

Serious Sam HD or BFE for real multiplayer fun

I plan to buy Dungeon Siege so I can run the Ultima 6 Project. Don't know if it helps you, but that's my choice. (And I already spent $1 on
MISSING: An Interactive Thriller - Episode 1).

Distance? Rebel Galaxy? Darksouls 2: Scholar of the first sin?

Battleblock Theater

or FTL: Faster Than Light if you want to die in space, a lot

Rocket League

Check hidden gems thread you can buy a whole lot of different games with that much money :-)
Or you can also buy, Wolfenstien, Skyrim V, The Evil within, Dead Light or Age of Empire 3 Complete

Fightings?
Dead Or Alive 5 Last Round - 20$ (yes, I read description)
Mortal Kombat Komplete Edition - 5$
and something else, for example Dirt 3 at 7.5 $

Epic orc slaying with Aragorn look-a-like: Middle-earth™: Shadow of Mordor No MP though.
Hunting MP for up to 5(?) people: Evolve
Some frustrating adventure in the land of the dead: DARK SOULS™: Prepare To Die™ Edition or the sequel Dark Souls II ultimate badass edition with all the DLCs included but you still cry like a baby. Both have some MP with the ability to invade other players or to be invaded by jackasses in the most gringeworthy places.

Bad Rats obviously ( ͡° ͜ʖ ͡°)
Crypt of the Necrodancer, bought that myself and it's quite fun :)

Is your wishlist ranking accurate? Because if it is you can knock off 3 of your top 4

Was looking for the option in the poll:

"buy cojoha for a night"

was discouraged when I didn't see it :/

I prefer saving the $

gives aids