Probably has to be an honourable mention for King's Quest V and the infamous "throw a pie at a yeti" encounter.
Have pie? Throw it at the yeti to pass. Don't have pie or (rather sensible one thinks) have eaten the pie, and you're screwed with no clue what to do.
@Doppelmonger knows what I'm talking about.
From my own experiences I'll list two and a kind-of. The first is Alien: Isolation. Fantastic game that must only be played on Hard (the recommended) or Nightmare. I've occasionally seen people play on Normal or Easy and it angers me - really neuters what the game should be. Playing this alone in the dark with headphones, that feeling of being
hunted is superb. Anyway, the spike... the alien isn't the only enemy in the game and this isn't the first time you have to deal with the alien, but iirc it's Chapter Four that is "the medical wing". You're roaming around trying to find the thing you need whilst trapped in this one section with the alien. The game isn't exactly easy per se but in this section you suddenly find it really easy to get trapped, end up hiding in lockers the whole time as the alien keeps doubling-back, doing circuits around the corridors, etc. But it's not actually a bad thing, it's deliberate. This whole section is meant to force you to learn to use your tools, to use distractions to lure it away, to learn how to listen for where it is and learn when to hide and when to go for it. It's vital. I watched the odd streamer play it and sometimes they will absolutely not use their tools and just get more and more frustrated. Or they blunder through eventually and wonder why the game is so hard. Well it's because you're playing with two hands behind your back by never using your tools properly because you never learned. Excellent game, if a little exhausting by the end.
Second game that nobody will know - Sorcerer Lord:
This old Spectrum game from days or yore had you moving your armies around visiting keeps and citadels to alert people to return of the SORCERER LORD! He wasn't just a lord, he was a SORCERER LORD! Each location you visited helped you raise more troops and get more leaders, some of which could use magic which was stronger near rune rings. The general strategy seemed to be aggressive early recruitment and falling back to combat his armies in strength rather than trying to hold the initial line. But as a small child I could not beat it. About a year ago, it randomly popped into my mind and I found a Spectrum emulator and decided to try if adult me could beat it. Nope - as before I'm doing fine about half-way through the game and then suddenly swarms of armies come pouring down from the North and swamp my forces. I came closer but no joy - and this was on the Easy setting. Maybe I'll give it another go sometime and see if I can finally have closure. Would be interested if anybody ever beat this game.
I promised a "kind of" entry. That's
Marvel's Midnight Suns by the same people who did X-Com. It was apparently a commercial let down which is a colossal shame because the game play is one of the most deceptively deep and rich I've ever played, no joking. I think people saw it as a collecting card game which I suppose superficially it is, but it's more like Death Sudoku as you try to work out combinations of plays that will get you through.
Whilst initial shuffling of your deck is random the game is deterministic thereafter so you can play and play a fight over and over trying moves to different positions, different targeting choices, different sequences of powers and abilities getting further and further towards success, or deciding you've gone down a wrong path and going back some and trying something else. It's an absolute joy if you do what I do and put the difficulty up every chance it lets you. Why do I list it here? Well, there are multiple points in the game where you come across something new and you absolutely get stomped and you genuinely think there's no way you can actually beat it. I almost always play games on maximum difficulty (except Sorceror Lord, darn you!) and at points in Midnight Suns, I was right on the edge of giving up but I'd go away, have a think, come back with a different approach, having worked out some previously unnoticed synergy between cards or a new strategy and eke my way forward. I think about four, maybe five times in the game, I hit that point. For the final battle I literally had two sides of hand-written notes beside me detailing the exact moves, enemies, power sequences I'd worked out. Playing through them took me about three hours but I think it took me nearly eight to actually work everything out. Beating that game on Epic III was incredibly frustrating and rewarding and I loved it. Side-note, if you like Marvel comics stuff at all, the game has an insane amount of Easter Eggs and recorded dialogue and is more based on comics interpretations than the MCU. Anyway, the game (if played on proper difficulties) is not just a sudden difficulty spike but a whole run of massive difficulty spikes. Every story mission (interspersed with non-story ones) forces you to re-think and adapt. One of the best games I've ever played and did so badly that there will likely never be a sequel.
