Edit
I hope that this list will be helpful for someone when trying to decide if they want to pickup a game or not.
There might be some obvious ones, like old graphic adventures will generally allow manual saves (anywhere anytime) and a roguelike will not. But there are many not obvious ones, like modern adventures, and dungeon crawlers and FPSs. For example, Inferno - Beyond the 7th Circle allows manual saves while its predecessor The 7th Circle - Endless Nightmare does not. F.E.A.R. allows, F.E.A.R. 2 does not. Project Warlock does not, PW2 (for now demo only game) does/will.
Many old console ports already did not let the player save at their will. I hope you will find this useful, and will contribute to make it grow.
For what concerns the exact location of the save files, this might be too specific (Windows? Linux? Mac?), the purpouse here is to have a place when one might find an information that is sometimes nowhere to be found in the game card.
The link and the year avoid confusion in case of remakes:
Black Mirror 2003 vs Black Mirror 2017.
Articles are not considered in the alphabetical order.
Edit
thanks to mrkgnao for warning me that paople could not visualize with a link.
Now everybody can access the list!
https://docs.google.com/spreadsheets/d/1QIIf1LLzagso8jp7mI5NHnfZ24t9HZicbtEnyWKoefs/edit#gid=0

Edit
me and AB2012 have began working on it
please give us some feedback or tips
https://docs.google.com/spreadsheets/d/1QIIf1LLzagso8jp7mI5NHnfZ24t9HZicbtEnyWKoefs/edit#gid=0

Because the games description almost never tells, and it would be nice to know before-hand.
I already keep other lists - games with Japanese, German, and Russian speech included on GOG - but the interest there has been minimal.
I'd like a list for games with confirmed manual saves and loads to exist, maybe as a Google Sheet.
I have made a google sheet with one entry as a template but Google won't let me share it now.
It could be something like this

Inferno - Beyond The 7th Circle dungeon crawler horror "
68k Studios" https://www.gog.com/en/game/inferno_beyond_the_7th_circle

So, name, what kind of game it is and setting, both optional, dev and gog store page.

Is anyone interested? I feel I will mostly get answers only by the usual forum trolls, but if some other person is willing to contribute it could be a nice thing to have. If I could have just done a GOG Mix I would have done this a long time ago.

The list would be *way* too long, as it's probably more common for games to have manual saves than it is for them not to.

For example, here are some RPGs:
* Ultima from 4 onward
* Wizardry 4 and 6-8 (4 isn't on GOG; 8 assumes Iron Man not enabled)
* All the Infinity Engine games (Baldur's Gate et all)
* Both Pathfinder games (assuming Last Azlanti off)
* Bard's Tale remastered trilogy
* Elminage Gothic
* Saviors of Sapphire Wings / Stranger of Sword City Revisited

Plus many other games, way too many to list here.

Then there's games in other genres, including:
* Every Ys game
* Every Civilization game (assuming single player), as well as similar games I have a feeling that such a list would exceed the maximum size for a GOG Mix if there is such a limit.

that's true for old pc games, but for new releases it's the opposite, you usually have checkpoints only saves nowadays
and with one slot only
so the list could be limited to new releases, so people can find out about them?
anyway, I'd like to see if anyone else is interested

I'd be happy to contribute but there are literally thousands of them and you're going to hit the GOG forum post size limit long before you get even 10% of the way through, so it's best to have the Google Sheets document up and running (and shareable) first as the major problem with such lists is they start off well but quickly grow to become too much workload for one person, so adding a few trusted co-authors will ease the workload on yourself. One thing I would add instead of perhaps "setting" is a Notes field as there are some games where a config file edit can enable QuickSave / QuickLoad keys that aren't enabled by default (Frictional Games spring to mind), and including information on how to enable it seems relevant.

the share button is working now
https://docs.google.com/spreadsheets/d/1QIIf1LLzagso8jp7mI5NHnfZ24t9HZicbtEnyWKoefs/edit#gid=0

anyone who wants in can pm me :)

Of course, I just remembered that Timespinner and Bloodstained both have manual saves.

thanks!

A complete list would be a daunting task, so for now I will limit myself to some new or newer games where manual saves precence is not obvious. I'll also add games to a no manual saves list in the bottom. Mostly when I happen to be interested in a game, so I know for myself in the future. Of course, it's not thinkable that I can do this for every game in the catalogue.
Anyone who wants to join PM me.

There's also the distinction of whether saving can happen at any time (like in many of the RPGs I mentioned), or only at certain spots (like in action games like Bloodstained/Timespinner and some Ys games).

it's ok if you can't save during a cutscene, what matters is that a player is not forced to repeat levels or sections of levels, or to end lives and have to start from the beginning.
By the way, you give me beutiful news about Bloodstained

Update, you don't need to pm me, you can ask me to share the rights to the list from the google sheet page
Many thanks to AB2012 for being the first to join the ranks!
What is essential is the title and possibly the gog page link. Other info are optional.


https://docs.google.com/spreadsheets/d/1QIIf1LLzagso8jp7mI5NHnfZ24t9HZicbtEnyWKoefs/edit#gid=0

One of the issue, apart from the number, is what do you mean by "manual saves", really "manual" saves or save anywhere ?

I took it to mean you can save your progress at will (via quicksave or manual save) allowing for stuff like cutscenes.

That's what I was wondering, because you have a lot of game where you save manually but only at specific location, for example a lot of older JRPG (e.g. Final Fantasy VII) and it's different from being able to quicksave anywhere.

there is probably only a very few who would want to know this list and even fewer who would use it

Bloodstained only allows saves at save points, but at least you can reload them easily, and I remember the game placing save points right before bosses. (Also, every boss has a boss door in front of it, so you won't end up trapped in a surprise boss fight because you happened to go the wrong way.)

Timespinner is the same way.