what is the worst video game you have ever played and why?

Dragon Age:Origins.I don't know why,I just didn't like it much.

Gothic 4. Oh my God where do I start. Let's just say it's a shame it happened.

That's a bit harsh, the combat was a bit clunky but it can't possibly be the worst game you've played.

Probably one of the horrificly offensive ones like ethnic cleansing or just plain crap like Monkey Big Rigs or whatever it's called.

ET the Extra-Terrestrial on the Atari. Oh. My. God.

What is this 4th gothic game you speak of, never heard of it.

I honestly don't know what's the worst game I've ever played, maybe Fable.

while there are a few for me, I'd have to say the worst one for me at this time is the 3rd birthday. It really makes me annoyed to see a great series like Parasite Eve derailed so quickly by the PSP. Maybe I woulda cut it more slack if it was on a console because of my difficulty holding a PSP (then again the controls were pretty horrible).

The great slayer of the Atari platform.

This one was right up there for me as well.

Although I can recall some games from the 80s that were much worse.

I wish I could say that was my worst gaming experience... alas not.

The worst for me was probably some "gaming compendium" I bought for my Dragon 32 (8-bitter, a bit like a Tandy Colour.) This would've been 30 years ago and it cost me the princely sum of about a tenner, though adjusted for inflation that's probably the equivalent price of a major title these days. Turns out it was a bunch of what were probably demo programs written in Basic, and not especially good ones at that. In an age where platform games were popular and had been pretty well honed, seeing some poorly-performing horse race featuring chunkyvision graphics and not much else was a serious bummer.

Sigh... sometimes it's better to have a smaller software portfolio than adding any old crud to it. I guess there's a reason it was relatively cheap, but whatever it might've cost, it would've been too much.

+1 to Gothic 4. I knew it would bomb since Piranha lost it to the publisher, but I still played it for the story. Luckily the rights for the series are restored to the rightful owners.
It's called Arcania: Gothic 4, or Arcania: A Gothic Tale and it's the successor of Gothic 1, 2 and 3.

Personally I find Tetris to be mind numbing

Two Worlds, luckily I borrowed it from a friend so I didn't waste any money on it. I knew it was bad and I wanted to play it for the same reason you'd watch a B-Movie. The voice acting is hilariously bad but I'd underestimated how terrible the rest of the game was. The simple hilarity of the poorly voiced old english couldn't make up for the uncompelling story and badly crafted game world.

Oblivion Honestly, I am aware it's not exactly the worst game ever made, but for me, considering the huge marketing hype and my own expectations after Morrowind, for me it was a HUGE let down, so I can safely say it's the game that caused me the biggest pain in my gaming history.

It's supposed to be. It basically exsists as an interactive screensaver.

Stoked Snowboarding was terrible!

I suppose if we're talking about our biggest disappointment of late then it has to be Skyrim for me. The likes of Oblivion and the aforementioned Two Worlds felt wonderful in comparison, but Skyrim just felt dead. I still can't put my finger on its lack of appeal: even though there were specific things I didn't like such as the voice acting, the interface, the mannequin-like PC, none of them really seems to explain why I found it a turn-off. Maybe it was just the sheer number of things that failed to connect with me. It was certainly my disappointment of the year, eclipsing even Dragon Age 2, though I suppose that's disingenuous as I actually enjoyed DA2, it was just too many annoyances and cut corners that spoiled it for me.

Arcania is one I do agree with. I really couldn't play further than I'd managed to get in the demo, it just felt too uninspired and again, that all-too-common complaint of recent games, it felt unfinished. I did comment at one point that perhaps I should've stuck it out, maybe it gets better, but the unanimous reply was "no, it doesn't."

Big Rigs

Big Rigs and I kid you not, I have actually played it.

Stroke of Fate:Operation Valkyrie. Mind you, it's probably just not my kind of game, but this piece of crap gives you absolutely no direction what so ever as to where you need to go.

http://www.youtube.com/watch?v=b0JHBhZyuEM

Really, I heard rumors of a 4th Indiana Jones movie as well, is there any truth to this rumor? (take the hint)

Tough question, there's a boatload of them. Bad memories.
Fable 2
Dragon Age 2
Two Worlds
Loki
Call Of Juarez: The Cartel << goddam awful
Duke Nukem Forever
Arcania
Rise of the Argonauts
Alone in the Dark
...
...

http://www.youtube.com/watch?v=Qj0S_IMKrZs.

Why did I play it? How could I not after the [censored] storm that surrounded its release.

Edit: Oh and Arcanum: Of Steamworks and Magick Obscura was really just...bad. I was so dissappointed when I finally got to play it.

Fable 3. I mean seriously, it's like they were trying to ruin everything good about Fable 2.

http://www.youtube.com/watch?v=URcvdDtnM_0