Oldest game you haven't finished yet?
 

I installed Keepsake over 4 years ago on my old pc with XP, and reinstalled it last year on the new pc with windows 7, having kept all my save games. At this rate, it might see windows 8 too :P

I got stuck on a puzzle about 2 or 3 years ago and refused to have a walkthrough solve it for me, so I left the game. Tried it again last night for the first time since then, still couldn't do the puzzle, and ... surrendered, using the walkthrough, lol. It was the puzzle where you have to swap tiles with mages and knights to get the dragon to it's lair/cavern at the bottom left corner, if anyone remembers that one. Bloody difficult! It's still a beautiful and atmospheric game, and I'm going to push on and see if I can't solve any more of these fiendish puzzles.

What games from way back have you not finished yet for whatever reason, and feel like revisiting or have started to revisit?

Manic Mansion. Got to the very end, then didn't know that I had to put the meteor in the Ford Edsel (I looked up walkthrough after I had deleted my save games, and never played it through since!).

Well technically it's not that old because I have the re-released version, but Sam & Max: Hit The Road is probably the oldest adventure I haven't finished, if we're going by release date.

That reminds me, I still haven't finished The Secret of Monkey Island: Special Edition. I need to get onto that.

I never finished the first Journeyman Project game, Pegasus Prime. I had to uninstall it when we were playing musical computers around here, and I never reinstalled it. I also never finished The Space Bar. I ran out of time and died before I could solve the final puzzles in the bar. Since I overwrote some key saves, I would have had to start again from the beginning to make a difference. Both games I plan to get back to one of these days.

Lighthouse. I remember some underwater maze with pain in the arse controls or something. every time I noticed it on my shelf I promised myself I'd get round to reinstalling and finishing it... one day

Schizm back in 2003 The first game I bought after finishing BS 1-3, my first AGs. Definitely the one I have my deepest regrets about. I know it's a good game, it got good reviews and a lot of people seem to like it but I just can't solve any of the puzzles in all 4 tries I've never got off the first two location(that would be the islands and the floating thingies) having eventually consulted a walkthrough I soon figured out why. It's all math! And if anything I suck at it's math! So after 4 tries I gave up and it's sitting on my shelf ever since unfinished. :\

Games I've started and put on hold for the longest time include the Uru expansion packs, The Dagger of Amon-Ra and The Last Express... it's been almost two years since I last played them!

When I was playing TLE, I was really obsessed with trying different things, exploring different compartments at different times, trying to hear different conversations... I must have reset the clock a few hundred times! :D During the Munich-Vienna leg, I ran into some annoying technical problems with my Win98 PC, which meant putting Dagger of Amon-Ra and TLE on hold. I finally got the problems fixed, but sadly, all momentum was lost with TLE. Finally finishing all of my games on hold was supposed to be one of my adventure gaming resolutions for 2010! :o

Not limited to adventure games:

King's Quest 5 and up.
Experience 112
Obscure 2

That's just off the top of my head. I think there are more.

For me it is Woodruff and the Schnibble. I have barely started it and find it hard to make myself play it. I know I shouldn't waste my time on a game that I really don't want to play, but I've had this game since it first came out and I am determined to play it through. After some other games...

The only adventure game I've actually tried to get through, but couldn't, was an old text adventure game on my C64. I'd love to give it a go again now that my vocabulary has improved, but I can't remember the name of the game, or much about it. All I remember is some sci-fi themes and an L-shaped room that I was stuck figuring out. I got it for free on a tape that came with a magzine around '91 or '92 so I'm guessing it was made in the 80s... but most C64 games were made in the 80s so that doesn't say much :p

Other than that, I've only stopped playing adventure games because I didn't like them enough to keep playing, or because of technical issues.

I rarely leave a game unfinished unless I really don't like it. Most of the classics I enjoyed in the past as a kid I did wind up finishing much later. Of course being a kid and not really having the internet for help made it harder to beat those games. I can think of a few: probably Zak McKracken and some Sierra games (King's Quest III in particular) I still haven't beaten because they can be difficult even with a walkthrough on hand. Especially the Sierra games, like the early Space Quests are more stressful than they are fun, so I haven't really bothered to try to complete them.

In more recent times: I never finished NiBiRu. I just didn't like it at all and by the end puzzle I was completely fed up and just stopped there. I didn't really care to know what happened at the end. I disliked it that much.

I also got a little way into The Experiment, but stopped playing due to the horrendous control scheme. It was more trouble than it was worth, and I just never went back to it even though I intended to at one point. Shame really because I was very interested in the story.

oh I remembered an even older game I never finished. way back in the Amiga days there was Valhalla: Lord of Infinity. I kept getting stuck because some of the dialogue was difficult to hear and there were no subtitles. I'm tempted to buy the re-released version on PC

King's Quest 3, 4
Beneath a Steel Sky
The 7th Guest

Police Quest 3
All the King's/Space Quests
The Dig
Monkey Island 2-...

About half the Infocom catalog

Riven. It was simply too big and I got sick of changing CDs all the time when moving between the islands.

Thinking of replaying it now.

I never finished Starship Titanic. Even with a walk-through I couldn't finish it. I've tried a few times years later, but no luck. And now I can't get it working anymore. I'm still a bit disappointed that the game didn't turn out what I thought it would be.
There are more I haven't finished, mostly because I they didn't interest me enough, like BS 2 and Paradise.

Sacrilege! :P Well, particularly BS2.

Try to snag the dvd version on ebay.

Riven is a very difficult game, but it's so beautiful and artistic. One of the best, in my opinion. Well worth the frustration and guilt of resorting to a walkthrough! ;)

I have no mouth and I must scream

Flight of the Amazon Queen