MASTER OF ORION III wears the great jeweled crown of shit upon its unnaturally broad, mongoloid brow. I made the mistake of buying this so-called game. How to describe the bugs....... Ah, yes. Imagine removing cancerous tumors from a hundred people so that they might live. This is debugging. Now imagine gathering all the tumors under the assumption that since it came out of people this diseased mass will become a person if you just stitch it all together. This is MOO3.
OBLIVION used to just drop to desktop at random intervals. Sometimes I'd get less than a minute, sometimes hours. The program would simply disappear like it had never been running at all -- no crash report, nothing. It was a rare session that ended with me saving the game.
FALLOUT 2. I made the mistake of trying to play it without patching first. Oh Lordy, what a testament to the evils of early release. Don't talk to this character or the game will hang. Don't acquire this type of ammo or the game will hang. Don't walk to this part of Town X or the game will hang. And so forth.
FAR CRY used to crash to desk at regular intervals. I reached a point beyond which I could not progress due to crashes. I never did finish it.
BIOSHOCK. I'm pretty sue the blame here rests on SecuROM, that lovely specimen of digital feces with which BioShock came pre-smeared. Regardless, my computer exhibited some seriously screwy behavior while I had them installed. Refusing to run the game with the legitimate DVD, mistaking Avast antivirus for copy protection violation, random crashes, overall reduced system stability, the list goes on. I do not jest when I say my machine has had extremely tenacious viruses that were less invasive, less destabilizing, and easier to remove. I got it all cleaned out eventually but I tell you what: the people who wrote SecuROM, and the company spokespeople who defend it, should be publicly flogged.
MASS EFFECT. Unnaturally sluggish to the point of near unplayability (on a machine that can whistle right along on Crysis), prone to crashing, and best of all the save feature doesn't work right. Not sure it's worth trying to finish.
Edit: And FALLOUT 3. More or less like Oblivion, surprise surprise.