Damn, I can't post a long post despite being a member for over 3 years (the little piece of shit even says New User). I'll be short: Euro Truck Simulator 2, available on Gamersgate.

It's a bug in GOG's antispam software which they say they're working on. It's gotten in my way also but once you get over 10 rep points the problem is far less of a nuisance. Posting one big run-on sentence with no URLs or dollar signs in it seems to work most of the time. I haven't had it bite me since I went over 10 reps yesterday, but apparently it can affect anyone. Hope this helps.

The "New user" bit just means that you have not created a title for yourself.

Well, it would be better if it said nothing. Now, let's try to find a title for myself...

I decided to go with Achron. Thanks for playing!

Congrats. Achron is pretty amazing.

Does freeware count? I love the game "Complements". It's a puzzle-esque game.

http://youtu.be/aiFvnAZcQ_o

The Stanley Parable

You can buy it for the low price of free from the following respectable website:

http://www.moddb.com/mods/the-stanley-parable

It's a Half-Life 2 mod but if you have the free SourceMod tools from Steam installed it's enough to play it.

It takes about 15min to beat but has 6 different endings. It's about a man named Stanley who finds himself alone in his office and the man narrating his tale, he says what you'll do before you do it which allows you to desobey him and take the story to different places much to his frustration. Ultimately it's a game about the illusion of choice in videogames.