Ok, I stumbled across this website, and was in awe at the amount of cool games that were there at no cost. And the amazing thing is, they are not all shitty platform games that are shit. There are some really awesome games in there, obviously I haven't tried them all, but take a sift through and see what looks good.
I'll post just some of the best ones here for you to see, but there are loads more that I haven't even looked at yet. Some of them you have to download, some you play on sites, just take your pick. This site is awesome for those who are bored of their games that that have and are looking for something new, but don't want to buy a new game for £30, there is some seriously fun games in here! Look here for the full list of games!
Note - Whatever your favourite type of game is.. RPG, FPS, RTS, you'll find something in here that you will like! ;)
Click here for another list of 50 free games that is different from this one. Awesome.
The drudgery of office life has left you with no choice but to kill yourself. Abuse office supplies and coworkers to bring your health down to zero before time runs out.
Flyff: Fly for Fun is chock full of fantasy flair and a respectable class system. Level-up lovers and experience whores who balk at monthly fees and level caps will feel right at home on the fields of Flyff. Experience free RPG games in style!
It's an adventure horror game, free from classic first person shooter elements, with an emphasise on puzzle solving and exploring. You're constantly on your toes you will never know what to expect, with no weapons how do you protect yourself.
The Last Stand 2 [Recommended by me! lulz] Play it now!
Fight zombies by night and build up an undead-proof barricade by day. Like all good zombie fare, The Last Stand gets a sequel. Seriously fun zombie game!
Right, I'm getting sick of all this HTML, so check the site for more! This is only the first half of all what's there, and also is only the awesome stuff I chose to put here.
Note to mods - To the best of my knowledge this is completely legal as these games have been developed for the purposes of being played for free by anyone. If I am wrong, please tell me and I'll trash it.